"top" CPU percentages don't even pretend to add up
Running "top -b" on my SuSE 11 system produces the output below. The Cpu(s) line reports 33.7% CPU usage in user space, but if you add up the %CPU column in the process listing you only get 4.9%...
View ArticleConfigure XMPP Server (Openfire) with Jappix
If there's anyone with a bit of experience in doing this I would be grateful.I'll quickly run through my home server setup. I have 3 relevant VMs, a mysql server, an XMPP server running Openfire and an...
View ArticleExperiences with ownCloud (at home)? Android integration?
Hey everybody!(finally) Motivated by this article, I decided I want my own cloud storage service, to use for myself and my girlfriend. Perhaps other friends too, don't know yet. I want to run it from...
View ArticleNeed a little mail server help
Short version is I need help figuring out why I'm getting this error message: postfix/lmtp[12637]: 4DC4FC18C: to=<postmaster@example.com>, orig_to=<postmaster>,...
View ArticleKVM Disk Performance Inquiry & Requested Recommendation
Hello Admins.While I've virtualized many instances using VirtualBox and VMWare, this is my first time working with QEMU-KVM. My woes are due to disk read/write performance.OS: CentOS 6.4Hardware: Xeon...
View ArticleTrueAbility's LinuxShowdown 4 Under Way
TrueAbility's Linux Showdown is a 4 day contest featuring unique break-fix scenarios in a virtual Linux environment that gives participants a chance to compete for prizes and showcase their Linux...
View ArticleWhat do I need to setup Linux as a router? In search for a good tutorial.
Hello folks. I want to use Centos as a router. I have my two NICs and they are both working. However I did a google search and I am seeing inconsistent tutorials. What software do I need to setup this...
View ArticleHave I peaked? [serious]
Short story long; I have 9 going on 10 years experience. Started in Web hosting high volume sites on Fedora, nowadays working in the public sector/edumacation. Here's where it gets personally...
View ArticleCan I upgrade my ubuntu server distro from 10 to 13 without losing my custom...
Or do I have to do a backup of my postfix? (and how?) Then re-install and setup after upgrading. Obviously I want to minimize downtime. The postfix configuration isn't huge but it is non-standard (on...
View ArticleLooking for input on a non-responding server
I'm thinking there is nothing I can do about this tonight but I thought I'd run it by others to see if there are any other opinions. I have a server running Ubuntu (server ed). The server has stopped...
View ArticleNewbie looking for a path
So, I am just now entering college( Computer Science) and I would like to get on a path to become a Linux SysAdmin. My problem is finding a path. I am not in the US so finding internships is...
View ArticleCrontab -r
Why is crontab -r so close to -e :(Is there anyways I can get the crontabs back again? - or is there any log file where I can see which cronjobs were running for the past 24 hours submitted by lsv20...
View ArticleLinux Showdown 5 Under Way (Nov 5-7)
TrueAbility's Linux Showdown 5 is a 3day contest featuring unique break-fix scenarios in a virtual Linux environment that gives participants a chance to compete for prizes and showcase their Linux...
View ArticleHow to expunge or mirror to an alternative history bash history and last log...
I've got a tool running that periodically SSHs into a variety of Linux hosts for some automated checking of services. In the process of doing so it does, in order:log in via SSHgenerate a tmp file in...
View ArticleLinux Admins, what is it worth ($) to be able to work from home
I am curious to hear, what percentage of your salary would you sacrifice in order to work from home, and for how many days? For example I might take a 5% reduction to work from home 1-2 days a week....
View ArticleHow to optimize a hybrid server network to be more efficient and cohesive?
I am going to have an opportunity (from the role of Linux Sysadmin) to work on optimizing a corporate server network that has a lot of different application servers from LAMP stacks to JBOSS to IIS...
View ArticleWhere do you put your scripts?
I have a mass of scripts that I need for admin stuff, and users need for their software. Any ideas of where to place them?Requriments:version controlled areaclear difference between admin scripts and...
View Article