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So I got a server at work that is only running a php script that does a certain job, and I can otherwise take advantage of the resource. I want to have our own monitoring we control, and was thinking about slapping nagios or something on it. My buddy suggested opsview, which looks cool. The only wrinkle is that php is installed as php53 via EPEL on this RHEL5 machine. I don't want to mess with it if I don't have to, but opsview is looking for php not php53 so it won't install. There a good work around here, or should I just slap vanilla nagios on?
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Apr 7, 2014 19:09
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Experto Crede posted:I'm trying to generate a single digit random number in bash and assign it to a variable. Did you have a look at using $RANDOM inside the script? This will allow you to simply give it a lower and upper bound, in your case probably 0 and 10, and bash then generates a random number between $FLOOR and $RANGE. You can find a basic overview here: http://www.tldp.org/LDP/abs/html/randomvar.html e;fb 
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Apr 7, 2014 19:11
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You could do it this way too (from a quick Google which turned up the link in the last post combined with my previous answer)code:
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Apr 7, 2014 19:12
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Ah, I see the issue now. I was using that command thusly: RANDOM=$(cat /dev/urandom | tr -dc '0-9' | fold -w 1 | head -n 1) Didn't know RANDOM was a system variable!
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Apr 7, 2014 19:17
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I'm planning out a new computer, and I'm wondering how much RAM I should buy. I don't know how Linux memory management works. Using something like 'free -m' at a terminal on my current computer shows that almost all of my 8gb of physical memory is being used currently, even when it's mostly idle, with just a few programs open. The summary line of 'top' agrees with the total amount of memory used, but if you add up all the processes listed there, it tends to total around 10%-70%, depending on what I'm doing at the time. I know top doesn't show all the programs running at any time, but when my computer is mostly idle, it seems like it would be close to the truth. I'm wondering if Linux preemptively loads stuff into free RAM, sort of like what Android does. If so, that makes 'free' pretty useless for my purposes. Is there a better way to do what I'm trying to do? TL;DR: Is 'free' showing very little free memory a good proxy for needing more RAM?
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Apr 7, 2014 19:29
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Grumpwagon posted:I'm planning out a new computer, and I'm wondering how much RAM I should buy. It's a terrible metric. Look at the buffers/cache in "free -m" to get an idea.
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Apr 7, 2014 19:38
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Cut and paste us the output. What are you using the computer for? 8GB is fine for the majority of people but 16GB is only another what, $75?
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Apr 7, 2014 19:38
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http://www.linuxatemyram.com/ htop should show what is actually being used and what is just cache.
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Apr 7, 2014 19:40
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thebigcow posted:http://www.linuxatemyram.com/ Thanks! That cleared things up a lot, and is sort of what I was expecting. Bob Morales posted:What are you using the computer for? It's just a normal desktop computer, I just multitask a lot. I always have 20+ chrome tabs open, play games (WINE and native), steam, run a couple of background servers (nothing intense, just a personal subsonic server), and various other things. I usually have 3-5 gnome3 workspaces doing various things.
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Apr 7, 2014 19:51
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Grumpwagon posted:It's just a normal desktop computer, I just multitask a lot. I always have 20+ chrome tabs open, play games (WINE and native), steam, run a couple of background servers (nothing intense, just a personal subsonic server), and various other things. I usually have 3-5 gnome3 workspaces doing various things. I think 8 GB should be fine for you. I don't play games on Linux, but when I'm programming I'll have lots of Chrome tabs, text editors/IDEs, terminals, etc. across three workspaces, plus a music player and some other crap, and this all runs just fine on 4 GB. Lots of people seem to be able to play games and have Chrome tabs open at the same time with 8 GB on Windows, so unless WINE is using a lot more RAM I can't see it being a problem.
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Apr 7, 2014 22:13
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VostokProgram posted:I think 8 GB should be fine for you. I don't play games on Linux, but when I'm programming I'll have lots of Chrome tabs, text editors/IDEs, terminals, etc. across three workspaces, plus a music player and some other crap, and this all runs just fine on 4 GB. Lots of people seem to be able to play games and have Chrome tabs open at the same time with 8 GB on Windows, so unless WINE is using a lot more RAM I can't see it being a problem. He should probably start with 8GB and if he needs more, add it. My main OS is Windows nowadays (I develop in an Ubuntu VM), but on Windows it's not infrequent that I get Windows warning me about low memory with 16 GB of RAM if I'm playing a game. When that happens it's the game, Chrome, and CrashPlan being the highest RAM hogs by far. So anyway, start with 8 and add more if needed. Problem solved!
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Apr 7, 2014 22:58
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Suspicious Dish posted:Don't rely on it too much. Wayland is going to kill the concept of two independent clipboards. I thought there are 3 clipboards.
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Apr 8, 2014 00:34
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There's an unlimited number of clipboards, but nobody ever uses any of them besides CLIPBOARD and PRIMARY.
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Apr 8, 2014 00:37
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peepsalot posted:I thought there are 3 clipboards. I have never seen a program ever use SECONDARY. Let me know if you find one.
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Apr 8, 2014 01:13
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Regarding the OpenSSL TLS heartbeat read overrun vulnerability, it looks like Ubuntu has the fix now. Do I just do a apt-get install libssl1.0.0 to get the fix? If I compiled nginx myself, do I need to recompile it?
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Apr 8, 2014 01:52
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apt-get update && apt-get upgrade -y Then you'll need to recompile nginx. For extra safety have your CA reissue your certificate and generate a new CSR once you have updated OpenSSL.
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Apr 8, 2014 06:35
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Revocation isn't extra safety, it's mandatory. Your private keys are in the wild.
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Apr 8, 2014 13:46
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Is Fedora still moving ahead with Wayland in its next release? Last I heard Nvidia couldn't write a binary KMS driver due to licensing issues with the API. Does that mean Nvidia users are going to be stuck using Noveu and have to hop through hoops to install X next fedora release? On a similar note, how is steam going to deal with the transition to Mir?
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Apr 8, 2014 14:11
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Mir will probably have a fallback X render too, so they don't have to do poo poo.
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Apr 8, 2014 14:53
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keyvin posted:Is Fedora still moving ahead with Wayland in its next release? Yep. keyvin posted:Last I heard Nvidia couldn't write a binary KMS driver due to licensing issues with the API. Does that mean Nvidia users are going to be stuck using Noveu and have to hop through hoops to install X next fedora release? We'll continue to have X for a long time. keyvin posted:On a similar note, how is steam going to deal with the transition to Mir? Steam is based on Debian, not Ubuntu, so it has nothing to do with Mir.
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Apr 8, 2014 14:57
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Suspicious Dish posted:Steam is based on Debian, not Ubuntu, so it has nothing to do with Mir. I think he meant Steam for Linux, not Steam OS. Steam for Linux targeted (and AFAIK, still targets) Ubuntu 12.04 LTS.
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Apr 8, 2014 15:41
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Suspicious Dish posted:We'll continue to have X for a long time. How will the option to use X be presented to the user? From what I know, xwayland will only support 2d acceleration. If a user wants 3d acceleration they would have to run a full x server right? Will it be a configuration option during the install or will it be as simple as checking a box somewhere? It doesn't really affect me because I run Debian stable so I assume this will mostly be worked out by 2025 or whenever Debian incorporates Wayland. I'm just trying to be more proactive about accepting major changes to the desktop stack after disliking systemd for so long when it turned out to be completely awesome. Yeah, I meant steam for Linux. I guess they can bump support up to 14.04 and be good for the next five years. It just seems like getting a 3d game to work under Wayland is going to take more effort than just recompiling against the appropriate libraries, but I don't really know. SYSV Fanfic fucked around with this message at 17:07 on Apr 8, 2014 |
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Apr 8, 2014 17:04
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keyvin posted:How will the option to use X be presented to the user? I don't know. We might choose automatically if we think you can run a Wayland session. keyvin posted:From what I know, xwayland will only support 2d acceleration. If a user wants 3d acceleration they would have to run a full x server right? Will it be a configuration option during the install or will it be as simple as checking a box somewhere? It doesn't really affect me because I run Debian stable so I assume this will mostly be worked out by 2025 or whenever Debian incorporates Wayland. Xwayland's 2D acceleration depends on the 3D acceleration to start with, so Xwayland supports both. It doesn't right now, as landed, but it's simply because we need a bit more time to get the changes done. keyvin posted:I'm just trying to be more proactive about accepting major changes to the desktop stack after disliking systemd for so long when it turned out to be completely awesome. Games using SDL2 (i.e. all of the ones on Steam for Linux IIRC) should work fine with no changes on Wayland. If they use GLX directly, it will be more difficult.
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Apr 8, 2014 17:19
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Heartbleed.com says OpenSSL 1.0.1 through 1.0.1f (inclusive) are vulnerable. CentOS's OpenSSL is still vulnerable: openssl.x86_64 0:1.0.1e-16.el6_5.7 Any idea when an update might be made available?
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Apr 8, 2014 19:36
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Doctor w-rw-rw- posted:Heartbleed.com says OpenSSL 1.0.1 through 1.0.1f (inclusive) are vulnerable. Looks like as soon as your repository updates: http://lwn.net/Articles/593841/
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Apr 8, 2014 19:41
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hifi posted:Looks like as soon as your repository updates: http://lwn.net/Articles/593841/ Ah, so it's not vulnerable, it's just a backported patch. EDIT: yep, recompiled against OpenSSL and tested. CentOS (and of course Red Hat's) packages are patched to be secure against heartbleed. Doctor w-rw-rw- fucked around with this message at 20:05 on Apr 8, 2014 |
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Apr 8, 2014 19:52
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Doctor w-rw-rw- posted:Ah, so it's not vulnerable, it's just a backported patch. What? CentOS/RHEL6 were absolutely vulnerable (on 6.5, but not earlier versions).
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Apr 8, 2014 20:15
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evol262 posted:What? CentOS/RHEL6 were absolutely vulnerable (on 6.5, but not earlier versions). The heartbleed.com site says openssl versions up to 1.01.f were vulnerable, and the patched version is 1.01.e.X
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Apr 8, 2014 20:24
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evol262 posted:What? CentOS/RHEL6 were absolutely vulnerable (on 6.5, but not earlier versions). I mean, as of the updated package's release, whose version letter is in the range of vulnerable OpenSSL versions, CentOS is secured, because the fix was backported.
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Apr 8, 2014 20:28
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hifi posted:The heartbleed.com site says openssl versions up to 1.01.f were vulnerable, and the patched version is 1.01.e.X 6.5 rebased to OpenSSL 1.0.1(e) to get TLS 1.2 support. Older versions were OpenSSL 1.0.0 (not vulnerable). The patched version after the CVE is 1.0.1.e.X (not vulnerable). My point was that there's a window of "I'm running EL6.5 but haven't installed the fixed version" that absolutely needs to be patched, because it is vulnerable.
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Apr 8, 2014 20:34
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evol262 posted:6.5 rebased to OpenSSL 1.0.1(e) to get TLS 1.2 support. Older versions were OpenSSL 1.0.0 (not vulnerable). The patched version after the CVE is 1.0.1.e.X (not vulnerable). My point was that there's a window of "I'm running EL6.5 but haven't installed the fixed version" that absolutely needs to be patched, because it is vulnerable. Yes, but it (referring to openssl.x86_64 0:1.0.1e-16.el6_5.7) is not vulnerable.
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Apr 8, 2014 23:38
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Doctor w-rw-rw- posted:Yes, but it (referring to openssl.x86_64 0:1.0.1e-16.el6_5.7) is not vulnerable. Ah, sorry for the confusion.
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Apr 9, 2014 00:15
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My mother text me today, flipping out over a warning her XP laptop gave her, alerting her she was "at risk". From the information I got from her, I'm pretty sure the message was basically just a warning about XP being EOL. I completely forgot she was even on XP, she doesn't want a buy a new laptop and I'm not sure how well Windows 7 would run on that thing (also £££). With that, any ideas on a distro/DE for a technologically-handicapped parent? I currently use Gnome 3 on Fedora, but I doubt she'll get along with it.
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Apr 9, 2014 17:58
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ArcticZombie posted:My mother text me today, flipping out over a warning her XP laptop gave her, alerting her she was "at risk". From the information I got from her, I'm pretty sure the message was basically just a warning about XP being EOL. I completely forgot she was even on XP, she doesn't want a buy a new laptop and I'm not sure how well Windows 7 would run on that thing (also £££). With that, any ideas on a distro/DE for a technologically-handicapped parent? I currently use Gnome 3 on Fedora, but I doubt she'll get along with it. That said, Xubuntu or Lubuntu is probably the most reasonable lightweight modern environment you'll find, but it probably won't run much better than Windows 7 these days on what I'm guessing is 10-year-old hardware.
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Apr 9, 2014 18:15
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ArcticZombie posted:My mother text me today, flipping out over a warning her XP laptop gave her, alerting her she was "at risk". From the information I got from her, I'm pretty sure the message was basically just a warning about XP being EOL. I completely forgot she was even on XP, she doesn't want a buy a new laptop and I'm not sure how well Windows 7 would run on that thing (also £££). With that, any ideas on a distro/DE for a technologically-handicapped parent? I currently use Gnome 3 on Fedora, but I doubt she'll get along with it. Can't really make a recommendation without the specs of the laptop. Ubuntu 12.04 runs very well on my parents parents 32 bit 3.4ghz pentium 4 desktop with 512mb of ram. Download a live CD and try it out. Hell you could download the unity, xubuntu, and lxde live cds and have her try all 3 so she can pick what she thinks is easiest to use.
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Apr 9, 2014 19:48
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I'm trying to setup a logrotate on a Debian 7.2 box, and it's not rotating logs. Here's the logrotate: code:code:code:
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Apr 10, 2014 12:31
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BoyBlunder posted:What am I doing wrong here? My best guess is that logrotate keeps a list of when a file was last rotated (/var/lib/logrotate/status) and it's seeing that your file was already rotated today and skipping it. You can use -d (debug) to see if that's the case (I assume). There's -f (force) but I think that will rotate everything. Maybe try just 'logrotate -f /etc/logrotate.d/crashreport'.
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Apr 10, 2014 14:10
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I have a yoga 2 running ubuntu-gnome 14.04. Everything works, except for the wireless, which rfkill considers it hard locked. I got networking working by disabling wifi in bios and using a ralink usb stick. Are the intel 7260 networking cards useable in linux?
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Apr 10, 2014 15:55
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BoyBlunder posted:I'm trying to setup a logrotate on a Debian 7.2 box, and it's not rotating logs. Try adding the -f (force) flag and passing just your own conf file not the logrotate.conf unless you wan to rotate everything on your system again. Having daily there can make it not run without force, but after the day changes over it should work.
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Apr 10, 2014 15:59
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theultimo posted:I have a yoga 2 running ubuntu-gnome 14.04. Everything works, except for the wireless, which rfkill considers it hard locked. I got networking working by disabling wifi in bios and using a ralink usb stick. Are the intel 7260 networking cards useable in linux? ideapad_laptop is broken in the kernel. Blacklist it.
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Apr 10, 2014 16:48
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