Looking to expand my experience. What oddball projects or new tech would you...
As it says on the tin. I've done a lot of Linux related things over the years, but there is always something new to try. What projects is r/linuxadmin doing to expand their knowledge? For me, I'm doing...
View ArticleOn Ubuntu Server, what's the best way to update a single component to a...
I need to be running haproxy 1.5 (with support for bind accept-proxy), the repos only have 1.4. On my development server, i've just compiled a new binary and overwritten the old one. it made things...
View ArticleSamba question
So I've joined a linux box to the domain, but whenever i type in wbinfo -u it returns nothing. No errors, just a return to the command prompt. Same with wbinfo -g. when I do wbinfo -D <domain...
View ArticlePostfix smtp relay help
Today i got postfix stetted up, i can receive emails. Im using ubuntu 12.04. But i can't send mails out. I have set up the relay host and also the login auth. But after sending the mail, i have checked...
View Articlelibvirtd hanging on shutdown
Hi everyone, I'm about at wit's end with this problem. libvirtd does not shutdown properly for me, otherwise it seems to work perfectly - I can create and run VMs no problem. The issue persists if...
View ArticleInstall failing. Debian + Poweredge server = no love
Having some issues installing Debian on this server. I'm in the process of trying to convert my company from an old version of Fedora to a newer cleaner version of Debian, issue is that the install...
View Article[Help Request]: Is there any way I could block all ssh connections from China?
For the past 2 days out of 3 that I had SSH set up (Just reinstalled Debian), I kept getting like 30 connections at a time from Chinese IP Addresses (118.122.37.197 and 219.136.246.22) trying to get...
View ArticleHow to block root SSH connection and only allow user SSH connection?
I never do a lot to secure SSH, other than offset port from it's default value. Even then, I still login as root 99% of the time, which isn't good practice obviously. Granted, these are just for...
View ArticleThinking about pursuing my Linux+, more inside.
Any information will be really valuable, job outlook, what I should know how to do pregame and what my options are post cert. Thanks in advance. submitted by Houshmanzilla [link] [17 comments]
View ArticleBest way to log terminal sessions ?
I want to log the commands executed on the server by all users. What is the best way to do this ? submitted by iam_root [link] [12 comments]
View Article[Advice/Experience Request] Any suggestions for a open source scheduler for a...
I'm thinking of moving away from maui/torque for my cluster but don't really have a handle on what are the better options available. My cluster runs Scientific Linux 5 64bit, has 60 dual-quad nodes...
View ArticleTaking LPIC-1 at the end of the month. What should I expect?
Hello, /r/linuxadmin! I'm a journeyman Linux user looking to get some professional certification. LPIC-1 is being offered at Ohio Linuxfest at the end of the month, so I've decided to take its two...
View ArticleRAID?
We have a server that was set up by somebody who no longer works with us and he didn't document it. It has 14TB of drive space but I can only see 5TB roughly, and it's a LVM. Is there a way for me to...
View Articleanyone know of a nice utility to parse the output of "script"?
So I'm trying to follow some reasonably detailed instructions from a one to one I had with one of our head devs. He dumped his whole terminal session into a file using script. Now, this is great - I've...
View Article[CROSS-POST] Authenticating RHEL 5 (and RHEL 5 Clone) Servers Using Windows...
submitted by failadmin [link] [3 comments]
View ArticleProject Ideas?
I have SSH access to a centOS 6 cloud server. I've already set up LAMP, and installed Wordpress. Now I'd just like some more projects to help me learn Linux in general/get me going as a Linux admin....
View Article[CROSS-POST] Managing the /etc/hosts File Across Multiple Servers With LDAP...
submitted by failadmin [link] [8 comments]
View ArticleDifference between lsof -i, nmap, netstat, and nc -z
Is there any major difference between these commands? I know that with nc you can use -z for checking for listening ports and -i for lsof. Does nmap really offer anything that netstat, lsof, or nc...
View ArticleSomething is chewing up all of my bandwidth, is there any software to find...
All, I work in a very small office that should not be using up all of the available bandwidth, and yet we are somehow. I've used mrtg in the past to see how much traffic is going through a device, but...
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