Support #889: Mining Bitcoin on FreeBSD - FreeBSD

bitcoin cpu mining in freebsd

./minerd -a sha256d -t 4 -s 4 -o stratum+tcp://sg.stratum.slushpool.com:3333 -u margarito.worker2 -p 123
submitted by balatero to u/balatero [link] [comments]

PSA: Monero 0.10.2 is out, and is a STRONGLY recommended update:)

this details the 0.10.2.1 point release, which includes a minor fix for RPC issues on 0.10.2

Overview

This is a necessary point release of Monero v0.10 "Wolfram Warptangent", and is a strongly, strongly recommended update as it includes massive efficiency improvements to the RingCT validation code and various other necessary bug fixes.
Some highlights of this release are:

Contributors for this Release

This release was the direct result of 24 people who worked, largely unpaid and altruistically, to put out 527 commits containing 21 090 new lines of code. We'd like to thank them very much for their time and effort. In no particular order they are:

Official Download Links

Download Hashes

If you would like to verify that you have downloaded the correct file, please use the following SHA256 hashes:
A GPG-signed list of the hashes is at https://getmonero.org/downloads/hashes.txt and should be treated as canonical, with the signature checked against the appropriate GPG key in the source code (in /utils/gpg_keys)
submitted by fluffyponyza to Monero [link] [comments]

PSA: Users, (solo)miners, exchanges/merchants, and pool operators must be on v0.10.1 in advance of the hardfork otherwise you will get forked/booted off the network. Miners, please contact your pool operator to ask them if they have upgraded | Monero v0.10.1 released - mandatory upgrade!

Approximately the 9th of January there will be a hardfork on the Monero network. Most pools have upgraded or are in the process of upgrading, but some have not upgraded yet. If they don't upgrade before the hardfork they will get forked/booted off the network. As a result you will miss out on revenue if you are mining on these pools. Thus, if you are mining on one of the pools that hasn't upgraded yet or hasn't scheduled an upgrade, please contact your pool owner as soon as possible and urge them to upgrade. Alternatively, you can switch to a pool that is on the right version.
Pool Upgraded Contact
MoneroHash YES [email protected] & https://monerohash.com/#support
MoneroWorld YES [email protected] & https://moneroworld.com/#support
mineXMR YES [email protected] & http://minexmr.com/#support
PoolTo YES [email protected] & http://webchat.freenode.net/?channels=%23poolto.be
Moneropool YES [email protected] & https://moneropool.com/#support
Prohash YES [email protected] & http://xmr.prohash.net/#support
Crypto-pool YES [email protected] & http://monero.crypto-pool.f
Dwarfpool YES [email protected] & http://dwarfpool.com/contact/
Alimabi YES [email protected] & http://xmr.alimabi.cn/#support
CryptMonero YES [email protected] & http://cryptmonero.com/#support
Minergate YES https://forum.minergate.com/
SupportXMR YES [email protected] & http://supportxmr.com/#support
XMRpool YES [email protected] & http://xmrpool.eu/#support
Sheepman YES [email protected] & http://sheepman.mine.bz/#support
CoolPool YES [email protected] & http://xmr.coolpool.io/#support
US.to YES http://monero.us.to/#support
MakeXMR YES [email protected] & https://makexmr.com/#support
USXmrPool YES [email protected] & https://www.usxmrpool.com/#support
SuprNova YES https://xmr.suprnova.cc/index.php?page=contactform&action=
PoolDD YES [email protected] & http://pooldd.com/#support
XMRpool.net YES -
XMRpool Murmansoft YES [email protected] & [email protected] & http://xmrpool.murmansoft.ru/#support
XMR Miningspeed YES [email protected] & http://xmr.miningspeed.com/#support

An important message for pool operators and miners

From MoneroMooo:
To all pool operators:
If you haven't already, you will need to update the node-cryptonote-util software in order for your pool to cross the january fork. I think many of the pool ops have done so already, but for those who are not in #monero-pools, you will need this patch: https://paste.fedoraproject.org/506116/17116821/
This applies to zone117x's version of the pool. There is a version of this ported to clintar's fork, which is here: https://github.com/M5M400/node-cryptonote-util/commit/37f50f9b535f0258c3a1c6f7247a891b4c211ff3.
If you're not running this when the fork happens, you will be forked off.
For pool miners, you may want to check with your pool op that they're running the patch a few days before the fork, and switch to a known good pool otherwise. Please prefer smaller pools when doing so.
Also bear in mind that running v0.10.1 or the GUI beta is mandatory. Any other versions will get booted off the network. Thus, miners, please email your pools and ask them if they are running v0.10.1 and have applied aforementioned patch.

General hardfork information

The upcoming fork will enable Ring Confidential Transactions. This will significantly enhance Monero's privacy. Note that they will not be enforced yet. That is, this hardfork will enable them, whereas the hardfork of September 2017 will enforce them. If you want to read more about Ring Confidential Transactions, see:
https://lab.getmonero.org/pubs/MRL-0005.pdf
https://monero.stackexchange.com/questions/tagged/ringct
Due to variance the hard fork will likely be on the 9th or 10th of January. A specific block height was determined for the hardfork, not a specific date. The specific blockheight for the hardfork can be found here. That is:
// version 4 starts from block 1220516
As an user you need to run either v0.10.1 or the Monero Core GUI Beta 1.

Monero v0.10.1 - Wolfram Warptangent - release

First and foremost, please upgrade to this version. A blockchain resync is not needed. Only this version will work after the fork of January 5. Note that this fork will enable Ring CT transactions, but will not enforce them yet.

Overview

This is a necessary point release of Monero v0.10 "Wolfram Warptangent", and is highly recommended as it includes consensus-changing fixes to the RingCT implementation and various other bug fixes.
Some highlights of this release are:

Official Download Links:

All available binaries can be found on the getmonero download page or on Github (at the bottom).
Official Direct Links:

Download Hashes

If you would like to verify that you have downloaded the correct file, please use the following SHA256 hashes:

Updating: Wallet Files

Simply create a new directory with the 0.10.1 binaries and copy your wallet files over to there. Make sure to backup your wallet files properly. If you need any help, feel free to PM me or respond in this thread. Note that your wallet contains three files, namely wallet.keys (this is the most important file, since it contains your keys), wallet (this is the wallet cache, which contains your transaction history and private tx keys), and wallet.address (which is just your public address). In addition, if you incur a bug whilst upgrading, you can always restore your wallet with the mnemonic seed as follows:
For Mac and Linux:
./monero-wallet-cli --restore-deterministic-wallet
On Windows make sure to launch it from the command line. Go to the folder monero-cli-wallet is located and make sure your cursor isn't located on any of the files. Subsequently do SHIFT + right click and it will give you an option to "Open command window here". Lastly, type the following command:
monero-wallet-cli.exe --restore-deterministic-wallet
If you want to restore from the private keys instead of the mnemonic seed, replace --restore-deterministic-wallet with --generate-from-keys

Contributors for this Release

This release was the direct result of 29 people who worked, largely unpaid and altruistically, to put out 481 commits containing 10 517 new lines of code. We'd like to thank them very much for their time and effort. In no particular order they are:

GUI

You can find the release (and binaries) of the first beta here.
submitted by dEBRUYNE_1 to Monero [link] [comments]

Monero v0.10.1 - Wolfram Warptangent - released! | Mandatory upgrade!

First and foremost, please upgrade to this version. A blockchain resync is not needed. Only this version will work after the fork of January 5. Note that this fork will enable Ring CT transactions, but will not enforce them yet.

Overview

This is a necessary point release of Monero v0.10 "Wolfram Warptangent", and is highly recommended as it includes consensus-changing fixes to the RingCT implementation and various other bug fixes.
Some highlights of this release are:

Official Download Links:

All available binaries can be found on the getmonero download page or on Github (at the bottom).
Official Direct Links:

Download Hashes

If you would like to verify that you have downloaded the correct file, please use the following SHA256 hashes:

Updating: Wallet Files

Simply create a new directory with the 0.10.1 binaries and copy your wallet files over to there. Make sure to backup your wallet files properly. If you need any help, feel free to PM me or respond in this thread. Note that your wallet contains three files, namely wallet.keys (this is the most important file, since it contains your keys), wallet (this is the wallet cache, which contains your transaction history and private tx keys), and wallet.address (which is just your public address). In addition, if you incur a bug whilst upgrading, you can always restore your wallet with the mnemonic seed as follows:
For Mac and Linux:
./monero-wallet-cli --restore-deterministic-wallet
On Windows make sure to launch it from the command line. Go to the folder monero-cli-wallet is located and make sure your cursor isn't located on any of the files. Subsequently do SHIFT + right click and it will give you an option to "Open command window here". Lastly, type the following command:
monero-wallet-cli.exe --restore-deterministic-wallet
If you want to restore from the private keys instead of the mnemonic seed, replace --restore-deterministic-wallet with --generate-from-keys

Contributors for this Release

This release was the direct result of 29 people who worked, largely unpaid and altruistically, to put out 481 commits containing 10 517 new lines of code. We'd like to thank them very much for their time and effort. In no particular order they are:

General Hardfork Information

A general thread with hardfork information will be posted soon. The main thing to know is that you should 0.10.1. Otherwise, you will get booted off the network. If you are mining, make sure the pool you are mining on has upgraded its daemon.

GUI Update

Fluffypony will be building GUI binaries once he has finalized this release. Note that this could take a few days. In addition, any unforeseen errors may cause delays.
submitted by dEBRUYNE_1 to Monero [link] [comments]

The Monero Missives (weekly report) - September 16th, 2014

Original post is here
Monero Missives
September 15th, 2014
Hello, and welcome to our twelfth Monero Missive! This is our first Missive after a bit of a break whilst we thwarted two related blockchain attacks. Nonetheless, we have not sat by idly, we have been finalising and completing a brand new aspect of Monero designed to protect your privacy now and in the future: the Monero Research Lab
Major Updates
  1. The Monero Research Lab is an open collective and a multi-faceted academic group focused on the ongoing improvement of Monero. Membership is not fixed, and comes and goes as researchers become interested in Monero. This isn't a group focused on the addition of "features" to Monero, but rather the analysis and improvement of the underlying core of Monero to make sure that the theories and cryptography behind Monero continue to remain robust and sound. With that in mind, we are proud to announce the release of the first two publications out of the Monero Research Lab: MRL-0001 - A Note on Chain Reactions in Traceability in CryptoNote 2.0 - this is a research bulletin that investigates how a chain reaction could weaken the blockchain resistance properties of CryptoNote's ring signatures if low mixin values are consistently chosen MRL-0002 - Counterfeiting via Merkle Tree Exploits within Virtual Currencies Employing the CryptoNote Protocol - in this research bulletin we investigate how the block 202612 attack occurred and what it exploited, and also covers the permanent fix we have put in place
  2. This week Friday we're going to have our second #Monero-Dev Fireside Chat this week Friday, September 19th, 2014, at 10:00 EST which is 14:00 UTC and 16:00 UTC +2. For a full table of the time zones you can refer to this image, or you can use this online tool to add your city and make sure you have the correct starting time. Please note that this is a developer event, and so most of the focus will be from that perspective.
  3. To pick up where we left off with our last Missive, we are also happy to announce the availability of Monero merchandise on the Monero Gear store, powered by Zazzle. The advantage of us using Zazzle is that it is on-demand and we never have to worry about print runs or stock or anything. In return we get 15% of each sale as a "royalty" that will go towards enabling further Monero development, although Zazzle do not (yet!) accept Bitcoin or Monero. We hope to add new designs to the store on a regular basis. You can check the store out here: http://www.zazzle.com/monerogear* or take a peek at some of the new designs right here
  4. We are also pleased to announce the release of URS, a Monero project written in Go that allows you to sign messages using ring signatures as part of a group. The signature can be verified, but it cannot be determined which one of the signatories in the group did the actual signing (just like Monero uses for transactional unlinkability!). You can take a look at the project here: https://github.com/monero-project/urs, and the Bitcointalk thread dedicated to the project is here: https://bitcointalk.org/index.php?topic=768499.0
  5. We have a new tagged release, 0.8.8.4, available for download (binaries: Windows, Mac, Linux, FreeBSD). This adds the following features: Testnet: we now have an operating testnet. When using bitmonerod or simplewallet you can now use the --testnet flag to use testnet instead of mainnet. Feel free to run a mining node or just a testnet node, we will be setting up email alerts for testnet nodes when an update is pending (although having a few older testnet nodes on the network won't hurt testing). FreeBSD Compatability: Monero now works on FreeBSD out the box. We will add it to the ports tree soon. At the moment compilation is no different from regular Linux and Unix compilation, and the same dependencies apply. GPG commits: we have begun GPG-signing commits and merges. This is an important step in maintaining the integrity of the codebase, and will ensure that any compromise of our computers or even the github account won't allow a malicious attacker to push code to the repository without the unsigned commits being spotted. Verification can be done by running 'git log --show-signature', which will show and verify signatures. An example of what you should see can be found here Versioning: versioning is a lot easier, now, as tagged releases from 0.8.8.4 onwards will show version-final (eg. 0.8.8.4-final) as their version, and those built between tagged releases will show version-commithash (eg. 0.8.8.4-9088ea1). We expect this will greatly aid in debugging problems, as we can immediately pinpoint the actual version / commit a user is on. Logging: default log levels have been adjusted so that non-critical warnings are now relegated to log-level 1 and above. Apart from the normal reorganisation notifications, the only messages in red that should show up in the daemon are actual errors.
  6. We have slowed down development on the GUI to give us a bit more time to focus on the Monero internals. This is especially important given the recent attack. However, work has not come to a complete halt, and so we wanted to show off a couple of pages from the first start wizard. Bear in mind that these aren't mockups, this is the actual running Qt interface: http://i.imgur.com/jzUvSEP.jpg, http://i.imgur.com/Bj1PTcU.jpg, http://i.imgur.com/oirzi9n.jpg, http://i.imgur.com/ACDmOFJ.jpg
  7. Monero has been added to another exchange, Coin Swap. You can find the market here: https://coin-swap.net/market/XMBTC
Dev Diary
Core: because of all of the rapid changes that we had to merge into master to deal with the aftermath of the block 202612 attack, we have to bring the development branch in sync. At this stage the development branch should not be considered usable until the rebase is complete.
Build: the big change is FreeBSD compatibility, as mentioned above. A more subtle change is that the build will now first look for miniupnpc on the local system, and use that if found. If it fails to find miniupnpc it will fall back to the local copy.
Build: there is a new Makefile target, release-static, that builds statically linked binaries for redistribution. At this stage it forces 64-bit builds, once we have the embedded database working cleanly we can remove this.
Wallet: per-kb fees are nearly complete, and will be deployed to testnet within the next week or so. Once some thorough testing has been done on testnet we can merge this into master, and transaction fees can return to "normal".
Blockchain: this took a bit of a backseat with the blockchain attacks. Now that things are back to some semblance of normality, the first implementation can be written. We have chosen LMDB for the initial implementation, as this will allow us to rapidly write a Berkeley DB interface based off of it (they use similar APIs) and thus have a baseline for performance comparisons.
Core: all non-critical "errors" and warnings have been moved to log-level 1. As a developer, you may find it useful to run log-level 1 or 2 as your default.
Until next week!
submitted by fluffyponyza to Monero [link] [comments]

Liquid, from Blockstream. What do we have here?

The Liquid proprietary sidechain from Blockstream has barely been discussed on /btc.
Major Bitcoin companies like Bitfinex and BTCC will apparently use this blockchain to exchange value with each other. And apparently "many other financial players we’ve met with over the past several months" are excited too.
Liquid is closed source. You cannot inspect it or modify it. Binary executables are not available, so you can't run it on your system. And in fact, you can't even use it. Any instances that are running are totally private.
We know that Liquid is not secured by mining. It is a centralized system without proof-of-work whose blocks are signed by "functionaries". Or rather, Liquid is "decentralized, but in a different way ... Liquid trusts a majority of a small group of known blocksigners who rely on the system functioning". So yes, Liquid is centralized https://blockstream.com/2015/11/02/liquid-recap-and-faq/
Does Blockstream claim that ONLY value locked from the bitcoin mainnet will be represented on the mysterious Liquid sidechain? That Liquid currency units will not be created in any other way?
If the answers to these questions are negative, Liquid is clearly an altcoin (OTOH why should anyone trust the answers anyway?)
As well, if Liquid currency units are used in consumer accounts, they will not be interoperable with bitcoin. They would have to be exchanged.
In the ridiculously brief discussion of Liquid on /Bitcoin, numerous red flags were raised with no answers offered by adam3us or austindhill, including
https://np.reddit.com/Bitcoin/comments/3osda3/liquid_sidechain_sourcecode/
If Blockstream wants to design a system that could serve consumers as a substitute for bitcoin, should they really be hosting conferences and signing documents whereby Bitcoin miners promise not to do anything that actually improves its scale? Should they really be labeling minor blocksize 75% consensus fork proposals as "altcoins"? Isn't that a wee bit hypocritical?
Reddit shadowbanned the first account gillfranco which posted this earlier
submitted by clotheshangeron to btc [link] [comments]

FreeBSD 0.15.0.1 node + ban 2x nodes script

For those of us that are running FreeNAS at home, I figured out how to adapt THIS ban script for our FreeBSD systems. Create a new jail, (I named mine node) configure your router for your jail to get a static lease and port forward 8333.

Access your terminal and log in. I use [PuTTY](www.putty.org) since my FreeBSD server is headless. Switch to your jail with the following:

jls
jexec (JID of your node) tcsh

Now Get installing!

Pkg update
Pkg upgrade
pkg install bitcoin-daemon bitcoin-utils nano

Lets configure bitcoin-cli!

cd uslocal/etc
nano bitcoin.conf
rpcuser=username
rpcpassword=verystrongpassword

Now lets configure the bitcoin-daemon

cd /root
cd .bitcoin
nano bitcoin.conf
server=1
rpcuser=username
rpcpassword=verystrongpassword
uacomment=NO2X

make bitcoind run on startup

cd /.
cd etc
nano rc.conf
bitcoind_enable="YES"

If you already have a node running, start here for the ban script

pkg install jq wget bash
git clone https://github.com/mariodian/ban-segshit8x-nodes.git
cd ban-segshit8x-nodes
nano ban.sh

replace first line with:

#!/uslocal/bin/bash
chmod +x ban.sh
./ban.sh

To see a report of current banned IPs from the bitcoin daemon, type

bitcoin-cli listbanned

Now lets set up a cronjob to execute this script on a daily basis. First lets change crontab's editor to nano:

setenv VISUAL /uslocal/bin/nano
crontab -e
@daily /ban-segshit8x-nodes/ban.sh

To view a list of all jobs, type

crontab -l

To remove a cron job, edit crontab with the same command above:

crontab -e

My next project is to get bitcoind-ncurses terminal front end working...

submitted by basheron to Bitcoin [link] [comments]

ZFS on Linux or kFreeBSD under Debian Wheezy?

Thinking about switching from my FreeBSD 9.0 server to the ZFS on Linux kernel module with CentOS 6.x or kFreeBSD/Debian Wheezy.
Wondering if anyone has tinkered with any of these and have any suggestions?
I'd be looking at:
*1 x 80GB SATA HDD for the OS (ext4)
*4 x 1TB SATA HDD's in RAID-Z
submitted by skitzot to linux [link] [comments]

/r/crypto Drilldown June 2014

/crypto Drilldown

Of 2262 Users Found:
Subreddit Overlapping users
/programming 333
/Bitcoin 313
/linux 280
/netsec 250
/privacy 188
/sysadmin 178
/Android 118
/math 108
/compsci 108
/AskNetsec 104
/Python 93
/learnprogramming 78
/Games 69
/ReverseEngineering 66
/hacking 66
/conspiracy 64
/dogecoin 63
/ProgrammerHumor 63
/TOR 62
/webdev 59
/gameofthrones 56
/networking 54
/TrueReddit 52
/europe 49
/onions 47
/archlinux 47
/soccer 47
/tech 47
/talesfromtechsupport 45
/changemyview 44
/cryptography 43
/haskell 43
/pcmasterrace 42
/Libertarian 42
/Minecraft 42
/apple 41
/Cyberpunk 41
/unitedkingdom 41
/BitcoinMarkets 39
/electronics 39
/geek 38
/Anarcho_Capitalism 37
/vim 37
/canada 36
/leagueoflegends 35
/cscareerquestions 35
/raspberry_pi 35
/DotA2 35
/Frugal 35
/gamedev 35
/Economics 34
/woahdude 34
/australia 33
/codes 32
/techsupport 32
/CryptoCurrency 31
/linux4noobs 30
/unixporn 30
/coding 30
/linuxquestions 30
/firefox 29
/MapPorn 29
/buildapc 29
/java 29
/YouShouldKnow 29
/Physics 28
/KerbalSpaceProgram 28
/Seattle 28
/opensource 28
/scifi 28
/malefashionadvice 27
/Ubuntu 27
/AskMen 27
/TumblrInAction 26
/homelab 25
/photography 25
/javascript 25
/web_design 25
/skeptic 25
/trees 25
/motorcycles 24
/AskHistorians 24
/SubredditDrama 24
/startups 24
/golang 24
/ruby 24
/litecoin 24
/androiddev 24
/debian 24
/HowToHack 24
/cringepics 23
/ECE 23
/techsupportgore 23
/commandline 22
/cringe 21
/anime 21
/interestingasfuck 21
/Anarchism 21
/sex 21
/business 21
/4chan 21
/offbeat 21
/investing 21
/Steam 21
/worldpolitics 21
/electronic_cigarette 21
/google 20
/linuxadmin 20
/restorethefourth 20
/amateurradio 20
/BuyItForLife 20
/PoliticalDiscussion 20
/hardware 20
/Psychonaut 19
/Malware 19
/MachineLearning 19
/tipofmytongue 19
/Justrolledintotheshop 19
/wikipedia 19
/nba 19
/LinuxActionShow 19
/Eve 19
/engineering 19
/AskElectronics 19
/hearthstone 19
/learnpython 19
/Drugs 19
/nyc 19
/magicTCG 19
/blackhat 18
/PHP 18
/casualiama 18
/ethereum 18
/Entrepreneur 18
/oculus 18
/BitcoinMining 18
/JusticePorn 18
/law 18
/truegaming 18
/hockey 18
/GlobalOffensive 18
/software 17
/cordcutters 17
/self 17
/cpp 17
/emacs 17
/bicycling 17
/rpg 17
/worldcup 17
/relationships 17
/starcraft 17
/asoiaf 17
/guns 17
/iphone 17
/torrents 17
/promos 16
/linux_gaming 16
/aviation 16
/windowsphone 16
/lockpicking 16
/battlestations 16
/Nexus5 16
/EngineeringStudents 16
/cyberlaws 16
/Foodforthought 16
/tf2 16
/arduino 16
/AskComputerScience 15
/britishproblems 15
/MorbidReality 15
/Portland 15
/computerforensics 15
/minimalism 15
/comics 15
/algorithms 15
/MensRights 15
/running 15
/Cooking 15
/headphones 15
/HistoryPorn 15
/bitmessage 15
/formula1 15
/Parenting 15
/mildlyinfuriating 14
/darknetplan 14
/MechanicalKeyboards 14
/SocialEngineering 14
/Military 14
/DoesAnybodyElse 14
/CCW 14
/sweden 14
/whatisthisthing 14
/sanfrancisco 14
/audiophile 14
/Nootropics 14
/AbandonedPorn 14
/toronto 14
/rage 14
/DataHoarder 14
/legaladvice 14
/startrek 14
/pokemon 13
/TheRedPill 13
/Fantasy 13
/futuristparty 13
/AskEngineers 13
/learnmath 13
/security 13
/UkrainianConflict 13
/nfl 13
/Austin 13
/conspiratard 13
/wicked_edge 13
/OkCupid 13
/gaybros 13
/Bad_Cop_No_Donut 13
/IWantToLearn 13
/starcitizen 13
/mac 13
/WikiLeaks 13
/spacex 13
/civ 13
/BSD 13
/hiphopheads 13
/boston 12
/energy 12
/csharp 12
/NoFap 12
/C_Programming 12
/patientgamers 12
/dwarffortress 12
/CryptoAnarchy 12
/childfree 12
/socialskills 12
/Namecoin 12
/london 12
/aws 12
/shittyaskscience 12
/undelete 12
/DarkNetMarkets 12
/everymanshouldknow 12
/ImGoingToHellForThis 12
/singularity 12
/HPMOR 12
/india 12
/intj 12
/Firearms 12
/Christianity 12
/firstworldproblems 11
/cars 11
/lifehacks 11
/RTLSDR 11
/flying 11
/Shitstatistssay 11
/TheoryOfReddit 11
/progun 11
/GnuPG 11
/Diablo 11
/blender 11
/lostgeneration 11
/Scholar 11
/Coffee 11
/django 11
/boardgames 11
/ipv6 11
/cats 11
/socialism 11
/TrueAtheism 11
/fossworldproblems 11
/evolutionReddit 11
/mylittlepony 11
/offmychest 11
/BasicIncome 11
/LosAngeles 11
/dogemarket 11
/reactiongifs 10
/CrazyIdeas 10
/Cynicalbrit 10
/electronicmusic 10
/WeAreTheMusicMakers 10
/Guitar 10
/france 10
/MilitaryPorn 10
/oddlysatisfying 10
/jailbreak 10
/usenet 10
/pcgaming 10
/polandball 10
/git 10
/androidapps 10
/VPN 10
/WildStar 10
/occupywallstreet 10
/facepalm 10
/melbourne 10
/relationship_advice 10
/chrome 10
/de 10
/TrueAskReddit 10
/snowden 10
/AskWomen 10
/litecoinmining 10
/CryptoMarkets 10
/Intelligence 10
/chicago 10
/collapse 10
/dailyprogrammer 10
/keto 10
/kickstarter 10
/chess 10
/firstworldanarchists 10
/fffffffuuuuuuuuuuuu 10
/Atlanta 9
/theydidthemath 9
/montreal 9
/QuotesPorn 9
/Denmark 9
/printSF 9
/Rad_Decentralization 9
/rust 9
/CFB 9
/lisp 9
/encryption 9
/ireland 9
/CrappyDesign 9
/dayz 9
/depression 9
/lgbt 9
/ems 9
/thinkpad 9
/travel 9
/vinyl 9
/perfectloops 9
/comicbooks 9
/Fedora 9
/Piracy 9
/AskScienceFiction 9
/robotics 9
/Health 9
/Watches 9
/beer 9
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submitted by RedditAnalysisBot3 to SubredditAnalysis [link] [comments]

/r/networking Drilldown June 2014

/networking Drilldown

Of 3000 Users Found:
Subreddit Overlapping users
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submitted by RedditAnalysisBot3 to SubredditAnalysis [link] [comments]

[Table] IamA splat, editor/moderator/reviewer on overclockers.com and sysadmin at a cancer research organization. AMA!

Verified? (This bot cannot verify AMAs just yet)
Date: 2013-08-13
Link to submission (Has self-text)
Questions Answers
This just got cross posted to /sysadmin ; as a fellow research-field oriented sysadmin it gets worse... I too started in the Quake/HL/CS/TF timeframe, but got my degree in CompSci. Have you ever dealt with mice (the mammal kind; I've got worse stories)? Certs: just got my RHCSA this year. I've got the RHCE scheduled for october, and I'm studying for the CCNA, though I use HP switches.
How do you backup desktops / servers? Backups: Luckily, I don't do desktop support. We have another IT group that does that, I'm completely independent from them and I only have to take care of servers (and my own desktop). The physical servers are backed up to tape with Bacula. Our virtual servers are backed up with Veeam. My own desktop is backed up to my NAS share using synctoy (yes, i use windows on my desktop).
How much disk space do you have in one server? One off systems: As in physical servers built by hand? 0. I'm pretty much a Fujitsu shop with a few Dells. I definitely don't have time to be piecing servers together. disk space: only a few TB per server. I think the better answer would be that we have an Isilon X200 cluster that is 140 TB.
one off systems: As in physical servers built by hand? More as in unique software; such as this computer runs the HPLC. I guess in that case I only manage a handful of physical servers and a few VMs that are made for running one special piece of software or analyze data from one piece of scientific equipment. We have many other scientific devices that are attached to PCs that are "community" devices, but I don't have to manage them. and we've got a microscopy group that is separate from me too, with their own machines and devices.
If you are moving to 1gbs are you looking to increase the MTU? I was working on that but had some issues with firewalls for my windows-putty users. First, just to clarify, we're going to 10G from the 1G we have right now. I'm not our main network guy, so I'm not entirely sure but I doubt we'll change the MTU simply because we don't have a remote site so the majority of our traffic is regular internet traffic.
As for our backend network, I do use jumbo frames on a couple VLANs for our storage.
That most important question for any sysadmin...vi or emacs? Vi improved.
Anand Shimpi and Dustin Sklavos had an interesting podcast on the merits of Haswell on the desktop. In short, Dustin echos the enthusiast community's frustration with overclocking headroom decreases from Sandy Bridge Ivy Bridge Haswell. It seems like IPC has gone up but maximum frequency has gone down so the ratio seems almost 1:1. Then there is the issue of the use of TIM and IHS glue cap that caused some to delid their CPUs (and void their warranties). Question 1: What are your thoughts on the overclocking headroom decreases that we've seen? Question 2: Is Intel doing enough to cater to the enthusiast community? Question 3: How do you feel about the delay in the release of Enthusiast parts by Intel (Sandy Bridge-E & Ivy Bridge-E) versus mainstream parts (Sandy, Ivy, and Haswell)? Intel makes good chips and they do keep pushing technology forward, but they will never do overclockers any favors. They will always be doing whatever they can to make money. AMD will also do the same thing. Intel seems to think enthusiast solely means "deep pockets". At the same time, there always seems to be a lot of "the sky is falling" reporting done by many tech journalists. Intel hasn't completely forgotten about overclockers and I don't think they ever will completely let that group disappear. And really, what incentive does Intel have to completely lock out overclockers? Sure, deny us our warranty, we'll go ahead and buy another chip and give you more money. How could you deny that as a company? as for overclocking headroom decreases, one can only hope that means we've got a whole new architecture coming out soon, something like the transition from Pentium 4 to Core.
Do you have a home lab setup to learn/test on? If so, what does it consist of? At home I've got a 1u dell poweredge sitting in a closet which is my main server. I run bageez.us off it which was supposed to be my way of giving back to the community, by running a Linux torrent site. Other than that I've got two htpcs running Debian, a desktop windows machine for gaming/reviewing hardware, and a file server with 8 tb running Debian and KVM with a few Debian VMS.
Do you still have that site going? I tried your link but it didn't work. Looks like I let the SSL cert expire. I'll fix that tomorrow. It works on my end but I think I want to recode a few things and possibly get it to work with other trackers. Right now the torrents will only work with my local tracker.
Need to monitor that ;D. Yeah it's one of those things where I seem to be the only one visiting the site, so why stress about it. I also set up owncloud, but again, i'm the only one that uses it. :(
Do you get to keep the hardware you review? - Do you prefer the black theme or the white theme? Most of the time, yes.
Black. I don't mind the white theme that much tho. edit: he's asking about the forum default skin at overclockers.com/forums
What is your #1 piece of advise for any linux sysadmin? That's a tough one. Do you mean someone looking to become a sysadmin or one that is already a sysadmin?
I guess I didn't specify that did I? I ask the question because I've been doing mostly Windows sysadmin duties for about 2 years and some linux admin stuff. I'm falling in love with Linux and I would love to have a job dedicated to just *nix What advise/suggestions would you give someone that is wanting to make the transition? I think what really got me the best knowledge was forcing myself to use a "less polished" distro as my main rig for a few years. Once you are forced to learn, you'll learn quickly. Picking up an rhcsa book will help too even if you don't plan on taking the exam. Go through it and do the exercises. Install a distro, set it up, then format and do it all over. You can use virtual box for the same result without killing your main rig.
Do you still use FreeBSD? If so, what exactly do you use it for now? No, but I wish I did. I stopped using it because the GPU support in Linux was better on my desktop, and now I work mostly with CentOS, and it would be a lot of work to change 100ish servers over to FreeBSD.
What did you use to train yourself in everything? Just break and fix? Pretty much just the experience of using it daily on my desktop for years. Running gentoo and Slackware really gets you used to doing things for yourself.
Configuration management of choice for those 18 servers? I'm just a jack of all trades sysadmin with a strong focus on problem solving. Are you trying to cure cancer with those 18 nodes or mining bitcoins? I started playing around with puppet but haven't really gotten the hang of it. Right now the cluster is running ROCKS with Grid Engine, and I just use the rocks commands to provision/wipe nodes.
What's the hardest part about getting started with puppet? I think its mostly just finding the time to sit down and have enough time to emerse myself in it.
700+ centos nodes across a few clusters here and I'm loving ansible. Nice. I've heard that ROCKS becomes a bear at scale, but for now it's pretty simple and quick. My plan is to keep adding another 18 nodes every year (one full blade cluster) every year, as long as I can get funding, so I'm keeping my eyes open for other solutions for provisioning. Bright cluster manager is another one I have on my radar.
Computer didn't work for 5 months (it started then after i downloaded skyrim from steam it shut off, then finally worked last month). Put my new graphics card in, then problems ensued. Here: Link to www.reddit.com. 1st step i'd do is remove all nonessential parts from the computer. Leave the cpu and 1 stick of ram. Pull out the graphics card, don't connect any hard drives or cd drives. On the back, connect the monitor to the on board video card and connect the keyboard. Does it power on? Do you get any error messages other than it saying there is no OS? Then power down and connect things one by one until you figure out what part is causing the problem. If you think it's the drivers, you can boot into safe mode (i hope windows 8 still has that, press f8 while booting), then run Driver Sweeper, to remove the graphics drivers. I haven't tried this on windows 8 so i'm not sure if it will run or not. I don't think you need to do a full format and reinstall.
I'll try this tomorrow after work for sure. Do you reddit enough that i could contact you for more advice for help if i run into anything else? (i did contact nvidia team for help, they just told me to delete old drivers without any other help then those words). I don't blame you if you don't want to say you are able to help me with this situation. Humans be humans. Was there a specific reason to go into a cancer research lab? Or was it just a job that came around? No I don't go into photoshopbattles. I pretty much just do what I need for websites and that's it.
How do you like your baked potatoes? (please get into specific detail). It just happened to be the job I found but I love the environment. Much different than a corporate job.
I'm not a fan of baked potatoes but I do love curly fries if that counts for something.
You should really join us in the BAPC IRC channel. I do hang out in the unofficial Overclockers.com irc channel quite a bit. I'll try to drop by.
Do you do any sort of automation for firmware updates? Firmware automation? Nope, and I don't think I'd ever want such a thing. I've been looking at puppet as a way to automatically update software though.
I saw below you guys have some Dell servers, what models and do you use their Lifecycle Controller? We have a couple r610 servers and an equallogic storage box. I haven't heard of this life cycle controller.
What are the specs of your personal rig? Intel i7 3770k @ 4ghz.
Zalman CNPS9900LED cooler.
Patriot ddr3 2x2gb @ 800mhz cas7 (rated for 1200mhz cas9 but I can't boot at that speed anymore for some reason)
MSI Z77A-G41.
ATI Radeon HD 6870.
OCZ Revodrive X2.
How come you have a 3770k but only 4GB of RAM and a 6870? Seems a little overpowered in the CPU category. For benchmarking, mainly. The 3770k was our standard platform for reviews when I bought it. The rest is leftovers from various reviews. We don't get paid, so basically we work for hardware when we write reviews, more or less.
Wait when you review hardware you get stuff? Yes, hardware vendors provide review samples.
Have you ever had an OEM send you equipment different from the consumer version? (Say a factory overclocked version) and claiming it was the standard. Nope. Even if they did, we'd certainly review it as the hardware is, not as they intended it to be.
What's the worst PC loadout you've ever seen? PC load letter? What the f does that mean?
[email protected] JK, doesn't work well on a cluster unfortunately. Unless you have any perls of wisdom on how to make it work on a cluster? Well, it would work just as it does on any other group of computers. I'd have to run one client on each computer and they'd all check back to get their own workloads, so it would really take out the "cluster" usage and turn them just into regular blade servers.
How old are you? Young 30s.
Have you gone to college and completed a bachelor's degree, if not, do you regret it? Yes, BS in Mechanical Engineering.
How did you prove yourself to be worthy of that initial Jr. Sys. Admin job? I listed everything I could think of that I've done that was computesysadmin related. I had administered several web servers over the years, and experimented with many different distributions as my daily driver on my main desktop, so I was very comfortable on the command line and with day to day tasks. I was asked a few 'test' questions on the interview but I think they were more to gauge exactly what i did and didn't have experience with, not so much to make or break me.
Lastly, congrats on doing what you love for a living. Cheers to your future. And thanks. i definitely wake up in the morning with a different attitude than i used to, and that makes a big difference.
Configuration Management / Vagrant / Clouds. I have start playing with configuration management, but haven't gotten anything in production yet. I only provision new VMs every once in a while, and once the computer nodes are up they are pretty stable.
What is your scripting language of choice? I use straight up bash for most things, and python for some. I'm trying to learn more python.
How do you feel about some distros moving away from init.d and going to systemd? I like init.d because it's what I know. Systemd is just a different way of doing things, I'm sure I'll like it once I learn it.
As a OCF Member I have to ask, What is the most extreme cooling you have dealt with?(LN2, Phase Change, Water, D-Ice, etc.) LN2, at the benching party in philly last year. We definitely need to get one of those on schedule again. Also, my work has LN2 and D-ice sitting around but I haven't asked if it's ok for me to play with those yet. One day, i'll ask, and it will be awesome if they say yes. fingers crossed.
So, can I have some of your left over gear? Joking, heh heh... Seriously though, got any gear that's collecting dust? Mostly by the time we're ready to part with gear, it's not worth much and is terribly outdated. Or, it's been burned up by pushing too many volts.
What do you do with the old gear? Do you scrap up a functional computer and donate it to a charity, or just proper e-waste recycling? If it's not on my computer or benching station, it's in my closet. And my wife doesn't like the amount of computer stuff in my closet, so I'm sure I'll start looking for some way to recycle stuff soon.
Where does a young grasshopper starts to learn all of these materials wise one? Well, you could get yourself a RHCSA prep book (linked to the one i have and found useful) and go through all of the exercises. The way I learned was basically to set up my own servers, either physical or virtual, at home, and run them. I think FreeBSD, Gentoo, and Slackware were the most beneficial to me in that they don't really make choices for you, so you have to configure things for yourself which forces you to read the documentation and learn. They all have excellent documentation, btw. If you want to go a step further, linux from scratch will really teach you about the operating system from the ground up.
From there, come up with little projects for yourself. Like making a home NAS, setup NFS and Samba shares, install XBMC on a HTPC and hook it up to your tv to stream movies and music. Setup a webserver and owncloud. Stuff like that.
Sorry I'm late but... how old were you when you first starting tinkering with Linux and such? I'd like to be a sysadmin or similar when I finish school so I figured you were the right person to ask. I was 19 when I first made that half life/counterstrike server. I didn't even know what ssh was and it took a good amount of explaining for me to finally understand. The freebsd documentation is amazing and will walk you through just about everything step by step. To get NAT configured I had to use another how to but setting up that server taught me a ton.
Are you an Nvidia or an AMD guy? It's changed several times over the years. I used to be solely Nvidia because of Linux, but AMD has been stepping up their game and getting their drivers usable, so I currently run all AMD.
How much of a PITA is it for you to be HIPAA compliant? It's not really that tough. Luckily there's only a couple projects going on right now that have special needs above and beyond regular security needs.
What do you use for storage? We have a few Jetstor SANs, a couple Promise RAID boxes, and an Equallogic box as our VMWare backend. But our main mass storage is Isilon X200.
Whoops my bad, meant 1.18 not 1.8 it'd be gone if it was 1.8. sorry. I am using a hyper 212 EVO in the standard push configuration. Well 1.18 is too low for 4.4ghz.
Only 4gigs of ram in your rig ? Yeah...I've got 16 in my work PC for running VMs, and 16 in my VM host at home too. I'll probably buy more soon.
Oh ok, what V would I go to? I was able to initially get 4.4 with 1.18 and 0 whea errors, what V would you recommend? This is my first oc btw. Bump it up one step at a time until you are stable. Be methodical about it. You can check out what values other people are getting on hwbot.org.
Ok Ill do that, thanks man, at what V if the errors dont go away should I stop advancing them? Most likely you will want to stay around 1.6v. I'm not very familiar with that chip specifically so I'd check hwbot to see what other people have posted and go by that. Obviously remember that not all chips are the same, so you can't expect to get exactly what other people get.
1.6, that seems a bit high for my 212 EVO, a few days ago I did have it at 1.18 without any WHEA 20 errors. That's why I'm saying take it slow, one step at a time.
What do you think of this quote by Richard J. Schwartz? "The impact of nanotechnology is expected to exceed the impact the electronics revolution has had on our lives." Sounds good to me. I can't wait to see what comes next.
Actually nodes, or are some of them VMs? Physical blade servers as nodes. with 144 GB ram each.
Zfsonlinux in use? No I haven't used zfs at all.
Hey... You're pretty cool. Thanks. You're not too bad yourself.
The answer should be ''i wish i could say the same to you'' I'm not like that.
Just how big is your hpc. Only 18 nodes :/ but its more what I do with it...
How'd you get your nickname. Back when I played CS in the dorm freshman year of college, I used to get killed all the time. So I started calling myself "jack splat", as a play on the nursery rhyme (jack sprat), then shortened it to 'splat' on most of the websites I signed up for.
Describe a SHTF moment at your work place. I can imagine it must be highly stressful being the sole responsible person to keep all that gear running. I definitely have a few and luckily they aren't that bad. One of my first few months, I decided to connect this wireless ap to the network to test it out one morning. As I was being awesome managing the cable to make it look clean, one of the security guards came into the server room and said they had no internet. I looked at our switches and they were all lit up solid. By hooking up the ap, which had spanning tree turned on, I took down the network of the entire building.
Ouch...that's definitely a SHTF moment. glad you came out unscathed. Luckily, all I had to do was unplug it and everything went back to normal. I then set up a spare switch at my desk and played with it before figuring out that STP needed to be disabled on the AP. Now it's been running for over a year without incident.
Would you rather fight 100 duck sized horses or 1 horse sized duck? I'd go for the horse sized duck. Seems like more of a challenge.
U mad? Nah, I'm feeling pretty good today.
Last updated: 2013-08-18 07:16 UTC
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