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| 02:56.45 | findlay | screen experts (eightyeight,goozbach,sjansen,Tene,etc.): is it possible to setup multiple default sessions? I want to be able to do `screen -S work` and `screen -S homework` and have each session setup window titles and working dirs based on the sessionname |
| 02:58.01 | findlay | it gets really annoying to have to resetup 5 screen sessions after my computer's battery 'accidentally' runs out of energy |
| 03:00.32 | Heartsbane | have you tried byobu? |
| 03:02.56 | findlay | interesting |
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| 03:08.40 | findlay | gives a v to elg |
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| 06:06.28 | Tene | findlhave you tried tmux, btw? |
| 06:12.58 | Tene | oh, no findlay |
| 06:13.07 | Tene | he should try using screen -c |
| 06:49.09 | eightyeight | and findlay is gone |
| 06:49.48 | eightyeight | of course, i didn't get the hilight, because "(eightyeight,goozbach,sjansen,Tene,etc.):" is interpreted all as one massive word |
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| 07:19.27 | Tene | tmux looks like a pretty nice successor to screen. I haven't used it extensively, though. |
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| 08:29.33 | Reilithion | Don't forget dtach+dvtm |
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| 10:56.07 | bonez2046 | Tene: I have heard of but have never used Screen. What does Screen do? |
| 12:41.24 | eightyeight | Tene: tmux is cool, except it doesn't do serial connections. other than that, i think it's fully featured |
| 12:41.47 | eightyeight | although the ^b shortcut is annoying |
| 12:42.52 | eightyeight | bonez2046: screen is a terminal multiplexer. it allows you to have a running process, even after you log out of the terminal |
| 12:43.06 | eightyeight | thus, processes can be "detached" and "reattached" at will |
| 12:43.20 | eightyeight | without affecting the pid in any way |
| 12:44.03 | eightyeight | as i just mentioned, it also allows you to connect directly to serial consoles, which is handy for cisco switches, and the like |
| 12:45.43 | eightyeight | most people here, such as myselfy, probably use screen mostly for a running irssi/weechat session, so they never disconnect from irc |
| 12:45.52 | eightyeight | s/fy/f/ |
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| 14:59.21 | tensai | <PROTECTED> |
| 14:59.25 | tensai | hmm... |
| 14:59.55 | fugue88 | logs out of tensai's machine |
| 15:00.15 | tensai | ok. now all the rest of you too |
| 15:00.52 | tensai | actually cacti is running amok |
| 15:01.01 | tensai | the cacti poller, to be more specific |
| 15:01.14 | jsmith | tensai: Lovely! |
| 15:01.28 | jsmith | tensai: You using the C poller, or the PHP one? |
| 15:01.32 | tensai | if only there was some better nms system out there. something python based... |
| 15:01.57 | tensai | jsmith: I'm rebuilding from a backup as the disk failed. right now it's the php poller and that's part of the problem. |
| 15:02.46 | goozbach | tensai: use opennms |
| 15:02.49 | jsmith | tensai: Worse comes to worse, you can install an op-code cache for PHP |
| 15:03.01 | jsmith | goozbach: "But... it's Java!" |
| 15:03.29 | tensai | the problem is we have a very specific set of cacti templates for our customers that I can't recreate in anything else |
| 15:05.04 | jsmith | understands |
| 15:05.39 | jsmith | tensai: What, you can't write your own poller in C/python to grab the data via snmpwalk and then stuff it into the RRD files manually? |
| 15:06.02 | eggyknap | Mmm... cacti templates. I think I just threw up a little |
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| 16:21.28 | sjansen | Yargh! |
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| 16:27.23 | Tene | tensai: at work, we've started moving to a distributed worker system. Workers run on the individual hosts and put their data in memcache, so the actual cacti poller just reads a memcache key. Very fast, and migrating the worst data sources to it dramatically reduced load on our cacti server. |
| 16:27.33 | Tene | I still hate cacti for other reasons, though. |
| 16:33.07 | jsmith | Tene: Awesome... |
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| 16:40.08 | Tene | stores in a memcache key named something like ops.imac.cacti.<hostname>.key |
| 16:40.19 | Tene | where "IMAC" is the name of the system. |
| 16:40.27 | Tene | We use it for nagios checks too. |
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| 16:47.10 | tensai | Tene: that's pretty nifty |
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| 17:01.58 | elg | memcache is nifty |
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| 17:16.25 | sjansen | Screw it, I'm writing this in C. |
| 17:16.35 | sjansen | ~lart reportlab |
| 17:16.35 | ibot | follow's reportlab with a gauntlet and ... scratch ... HUMILIATION |
| 17:16.58 | tensai | got the cacti poller back in working order. the C poller was failing due to a database config error. |
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| 17:37.12 | tensai | Tene: how did you set that up on the cacti side? are you using scripts instead of snmp? |
| 17:51.41 | unum | do any of you use a filebrowser with vim? |
| 17:52.09 | goozbach | does :Sexplore count? |
| 17:52.35 | unum | yes |
| 17:52.39 | unum | that's what I'm looking for |
| 17:56.40 | unum | I need to learn vim |
| 17:56.45 | unum | then I need to train my coworkers |
| 17:56.49 | unum | that's the plan |
| 17:57.00 | goozbach | bit.ly/vim-table |
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| 17:58.01 | unum | nice |
| 17:58.03 | unum | very nice |
| 17:58.51 | goozbach | I'd like to make one for emacs, but I don't think it'd fit on one page |
| 18:33.39 | Nafai | heh |
| 18:34.09 | Nafai | The original keyboard reference I used when learning emacs was probably 4-5 pages long |
| 18:34.44 | goozbach | well, I *COULD* probabally get it on one page, but the font would be so small it wouldn't be legibile |
| 18:38.23 | Nafai | Heh |
| 18:38.42 | Tene | tensai: Yes, using scripts. |
| 18:39.26 | Tene | unum: I've heard several recommendations for http://www.vim.org/scripts/script.php?script_id=1658 |
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| 19:40.38 | unum | this is all part of my effort to replace wordperfect 3.11 |
| 19:57.23 | tensai | any suggestions on questions to ask for a linux sys admin interview? |
| 19:59.19 | fugue88 | How many manhole covers does it take to crash a data center? Does it matter if they're round? |
| 20:01.34 | goozbach | you have three packages of canned heat, you need to power this 2u server for 30min, how do you do it? |
| 20:01.54 | goozbach | remove grub config from a server and say "I need this website up in 10min" |
| 20:01.59 | fugue88 | tensai: What type of admining will they be doing? Security, managing 100+ servers, &c? |
| 20:02.13 | goozbach | job finished when you re-fresh the page and it pops up |
| 20:02.20 | goozbach | maybe break two to three things |
| 20:02.32 | tensai | goozbach: this is a phone interview |
| 20:02.57 | Gate | tensai: tone of interveiw: nice, hostile or asshole? |
| 20:03.04 | tensai | fugue88: whole kit and kaboodle for ~20 servers |
| 20:03.08 | fugue88 | Love the honesty, goozbach. |
| 20:03.09 | tensai | Gate: nice |
| 20:03.24 | Gate | :( so no "what does this perl regex do"? |
| 20:03.27 | fugue88 | I really like goozbach's dire grub scenario, actually. |
| 20:04.12 | goozbach | there's a troubleshooting tool. |
| 20:04.13 | goozbach | just a sec |
| 20:04.37 | Gate | tensai: question 1: the previous sysadmin set the root password and was fired/died without divulging it, how would you go about regaining control of the server? |
| 20:05.19 | tensai | goozbach: I think I know the one you mean but I can't find the url |
| 20:05.20 | fugue88 | Remote or local |
| 20:05.29 | goozbach | http://trouble-maker.sourceforge.net/ |
| 20:05.47 | tensai | I'm remote, but the interviewee will be local with my boss |
| 20:06.00 | Gate | I would say local, but if you have many remote servers remote might be a better test |
| 20:06.08 | Gate | oh |
| 20:06.24 | tensai | perhaps I misunderstood your question then |
| 20:06.47 | fugue88 | tensai: As in, do you get local or remote access to recover root? |
| 20:06.54 | fugue88 | For the interview question. |
| 20:06.57 | tensai | yeah now I get it |
| 20:08.25 | fugue88 | Here's one: There's a critical process that's running on a server. Nobody remembers how to start it up, &c. How do you investigate this to document and create a reproducible startup script? |
| 20:09.07 | fugue88 | Mostly solicits "soft" answer, but might be good to see their approach. |
| 20:09.56 | tensai | I'm thinking of using a recent problem where the aforementioned cacti server took a dump |
| 20:13.44 | Gate | What is a forkbomb? |
| 20:14.06 | Gate | too easy? |
| 20:16.30 | goozbach | ~wtf til |
| 20:25.33 | fugue88 | Today I Learned, or This Is Lame, or something about Linux I can't remember. |
| 20:25.47 | goozbach | fugue88: thank you |
| 20:26.02 | goozbach | TIL == Today I Learned |
| 20:26.14 | goozbach | meta enough for you? |
| 20:26.27 | fugue88 | :D |
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| 20:39.06 | rsimpkins | tensai: What level of sys admin? Jr. Intermediat. Senior. ?? |
| 20:39.17 | tensai | rsimpkins: junior |
| 20:40.46 | goozbach | monkey tasks then |
| 20:40.56 | goozbach | does he/she know what a subnet is? |
| 20:42.24 | rsimpkins | tensai: For junior interviews I usually ask questions in the categories of basic networking, basic automation, performance monitoring, basic protocol knowledge (to relevent techs), DNS resolution, and a architecture question that is sure to stretch them to see how they react. |
| 20:44.52 | tensai | I think I've got a good collection now. thanks for all your input. |
| 20:46.34 | goozbach | tensai: don't forget the "sit and stew" period |
| 20:46.39 | goozbach | in the waiting room |
| 20:46.52 | goozbach | and the "clueless secratary" test |
| 20:49.40 | tvc123_ | goozbach: so what is your clueless secratary test? |
| 20:51.00 | goozbach | tvc123_: while the canidate is waiting in the foyer, the secretary asks them for some simple help |
| 20:51.09 | goozbach | "this stupid spreadsheet won't open" |
| 20:51.26 | Gate | ... thats cruel but awesome |
| 20:51.28 | goozbach | and you judge how the canidate acts towards the "little person" |
| 20:51.39 | Gate | s/cruel/devious |
| 20:52.21 | Gate | "little person"? The secretaries have as much power in a corporation as the executives |
| 20:52.52 | goozbach | Gate: I know that |
| 20:52.55 | goozbach | hence the quotes |
| 20:52.56 | Reilithion1 | Gate: Perhaps, but they are often afforded little regard. |
| 20:53.17 | macnewbold | gatekeepers often have _more_ power, because they decide who talks to who |
| 20:53.30 | goozbach | and how someone treats someone who is reguarded little, shows their true character |
| 20:53.39 | Gate | True. I long ago learned that they are usually more practical and easier to deal with when you are polite |
| 20:53.43 | goozbach | it's a good personality test |
| 20:53.55 | goozbach | Gate: all it takes some time is to turn on the charm. |
| 20:54.11 | Gate | Yep, or this magical phrase |
| 20:54.13 | goozbach | I did that the other day at the airport |
| 20:54.13 | Gate | "please" |
| 20:54.20 | goozbach | with the gate agent |
| 20:54.43 | goozbach | "how are you today!?" *pause and listen* "I was wondering if you could do this for me?" |
| 20:54.54 | goozbach | "please" |
| 20:55.00 | goozbach | --- |
| 20:55.08 | goozbach | "Thanks SOOOO MUCH!" |
| 20:55.10 | Gate | lol, yep. They take crap all day, a polite and cheery person makes them want to kill someone that much less |
| 20:55.52 | goozbach | skywest agents are esp good at it |
| 20:56.12 | goozbach | because their superiors have their backs when they want to "fire a customer" |
| 20:57.40 | Gate | lol |
| 21:05.47 | Gate | I don't understand people who are assholes but expect flawless service. |
| 21:13.16 | unum | I'm always nice to people |
| 21:13.28 | unum | I even tip well when I get "bad" service |
| 21:15.32 | goozbach | I always tip "well" |
| 21:15.47 | goozbach | when I get great serivce I tip "great" |
| 21:15.57 | goozbach | when awesome; "Awesome" |
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| 21:34.21 | unum | ya, I'm like that |
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| 21:45.22 | tensai | here's a great way to ensure my vote: send me a personalized letter and misspell my name |
| 21:45.38 | sjansen | s/ensure/insure/ |
| 21:45.53 | tensai | I'm pretty sure they're both right |
| 21:46.27 | sjansen | notes that tensai is a little irony deficient today |
| 21:46.41 | sjansen | ensure is the only correct choice |
| 21:46.58 | sjansen | insure is the ironic choice |
| 21:49.14 | unum | learned about a terrible trick to get people to vote |
| 21:50.05 | fugue88 | Show them a poll that their most-hated candidate is winning, slightly? |
| 21:50.33 | unum | threaten to tell all of their neighbors if they don't vote |
| 21:50.39 | unum | 8% increase in turn out |
| 21:51.16 | fugue88 | unum: I've got you beat. I'm pretty sure that my idea results in a 10-fold increase in stupidity. |
| 21:51.32 | unum | well that may be true |
| 21:51.51 | unum | btw I heard butters is winning by 2% :p |
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| 21:52.28 | fugue88 | commits to vote |
| 21:54.28 | Gate | All my "most hated" candidates are in other states... |
| 21:54.52 | Gate | Think it will still work? |
| 21:55.15 | unum | well butters isn't even running this year and it worked on fugue88 :) |
| 21:55.55 | unum | actually I matheson's opponents use that all the time |
| 21:56.08 | fugue88 | sits back down on his couch and turns the tv on |
| 21:56.10 | unum | "a vote for matheson is a vote pelosi" |
| 21:56.37 | fugue88 | "a vote for matheson is a vote, pelosi"? |
| 21:56.48 | fugue88 | Pelosi needs to learn about voting. |
| 21:57.00 | fugue88 | But that's not on the table. |
| 21:57.41 | fugue88 | is surprised is head is still attached |
| 21:58.01 | fugue88 | er, uh, *my* head... |
| 22:00.50 | Gate | Signs have started popping up down here "Matheson = Pelosi" |
| 22:01.25 | Gate | I kinda feel sorry for Matheson. He is taking some vicious heat that he doesn't entirely deserv. |
| 22:01.41 | Gate | s/\.$/e./ |
| 22:01.49 | fugue88 | +1 |
| 22:03.30 | levi | Is anyone here familiar with using libvirt and its associated network setup? |
| 22:03.39 | Nafai | O |
| 22:03.52 | fugue88 | 0 |
| 22:03.58 | Nafai | I've done a bit with libvirt, but haven't got into the networking enough to be comfortable with setting it up |
| 22:05.00 | levi | I'm having some issues with it. I want to have a bunch of virtual machines that are all connected to a bridge, along with an interface on the host. |
| 22:06.01 | levi | So, I've got a couple of vms running, and they can all get IP addresses in the same subnet, and they can all ping the bridge device IP, but they can't ping one another. |
| 22:06.22 | Nafai | hrm |
| 22:09.22 | jsmith | levi: SELinux perchance? iptables problem? |
| 22:10.09 | levi | Is iptables even supposed to be involved when the interfaces are hooked to the same bridge device? |
| 22:11.41 | tensai | I wouldn't think so, otherwise it would be routing and not bridging |
| 22:18.28 | levi | Yeah, that was my thought. |
| 22:24.34 | levi | Huh, I don't get this. Wireshark on the bridge and the vmnet devices shows that traffic is getting "across" the bridge. |
| 22:25.37 | levi | In the virtual machines, the RX bytes and TX bytes show they've been transmitting and receiving. |
| 22:26.31 | levi | Oh, geez, the virtual machines have iptables rules! |
| 22:26.36 | levi | No wonder. :P |
| 22:27.45 | levi | Default INPUT policy is DROP, and only ftp, ssh, http, and tftp are allowed, along with a rate-limiting rule. |
| 22:29.18 | levi | Flush the rules, change the policy, et voila! Pings work. :P |
| 22:29.54 | levi | I guess I should have looked at the docs for this little distro a little more closely. |
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