[CentOS] Is there a way to change settings in /etc/hosts without restarting...
So localhost was set up incorrectly in the /etc/hosts file for a load balancer at work.I'd like to update the file OOW without dropping connection. I understand that CentOS reads /etc/hosts at boot or...
View Articleadminstration interface for postfix/dovecot
Hi,I currently use postfixadmin (PHP webapp) to manage my mail server, but it hasn't seen any development for several years and is not perfect, so does anybody know a newer alternative? I am looking...
View ArticleHelp with graylog2
I'm missing something and was hoping a second pair of eyes could help me figure this out. I installed graylog2 following this:...
View ArticleAnyone know of any RedHat discount codes for RHCSA and/or is a sales rep?
I'm taking the RHCSA on the 14th of Feb, if anyone has any discount codes or is a sales rep let me know. I want someone to "sell" this to me, and get credit of course. submitted by athysrock [link][9...
View ArticleQualifications?
I am looking to get into Linux SysAdmin going to uni or formal education isn't really an option right now for me. What are some entry level qualifications I could do? Thanks submitted by...
View ArticleWhere are the security holes in my cluster setup?
Consider the following cluster consisting of a firewall(pfSense), a managed switch and several 1U servers. Security is important but budget is limited, need to make the most of what we have. We...
View ArticleFun with LVM snapshots
I upgraded a Ubuntu 10.04 Server to version 12.04. Before starting, I set up snapshots of the root, var and usr volumes, just in case things went sour. The upgrade went (mostly) OK, but after rebooting...
View ArticleRestore awstats.conf file
In Ubuntu 12.04 i was install awstat with: apt-get install awstatsthen i accidentally delete /etc/awstats/awstats.conf filenow i am tryng to restore this *.conf file with: apt-get remove awstats...
View ArticleOwncloud, multiple users sharing a music library.
Hello /r/linuxadmin. I'm not entirely sure where to ask about this issue, especially considering how barren /r/owncloud is. I hope this isn't too outside the pervue of this subreddit!I'm setting up an...
View ArticleUnique problem in mounting shared drives from Windows AD (xpost to /r/sysadmin)
http://redd.it/1u8oln submitted by Tercept [link][comment]
View ArticleGetting conflicting information from du and ls
I wrote a script a while back to tell me the size of files added to a directory less than a day ago:find /dbbackups -mtime -1 exec du -h {} \; and outputs the following:88G /dbbackups 4.0K...
View ArticleBacking up Raspian
I know there's a subreddit for raspberry pi stuff but this seems more suited here.I currently have 4 raspberry pi's running my home server setup (bind/dhcp, owncloud, subsonic/minidlna and...
View ArticleWhat is the most likely thing to happen if you try to run yum-update on...
Hello all. The place I just started working at has Centos Servers. All of them have an uptime of at least a year and all of them haven't had any updates run on them. The version of Linux is Centos 5...
View ArticleFedora 19 = ~RHEL 7?
This is my first go around for a major RHEL release, since becoming a Linux admin, and I was wondering if Fedora 19 is a good place to learn about the new parts of RHEL 7 or if I should wait for one of...
View ArticleWhere to start learning, setting up a linux VPS?
I'm a sysadmin noob, and would like to learn about linux admin by setting up a VPS with some easy services. I'd like to learn from the perspective of hands-on doing. Along the way, I'd like to...
View ArticleCan I limit CPU usage? - Already tried nice value
Hello,I have a dedicated server running Centos6 x64 and I use it to host minecraft servers. However, one person is always using more CPU than I'd like (peaks of up to 500%) which is causing terrible...
View ArticleAttempting to use sstp-client with ppp
Hello all,Trying to set up sstp client with /etc/ppp, when I run the sstpc command manually with the username and password, it works and connects fine. When I use ppp and run pon vpnname it appears to...
View ArticleSecurity questions for home server
Hi linuxadmin,I'm trying to setup my first homeserver, and I have some questions I hope somebody would answer. I'm planning to use the server to educate myself, test websites, run owncloud and with...
View ArticleAnyone using virtualization specific kernel parameters
I am not running into any issues in my ENV but doesn't mean I don't want to attempt to make it better. I have been seeing a lot of articles about adding elevator=noop and actually a lot of things were...
View ArticleFair Share CPU Scheduling in Linux (RHEL Specifically)
Hi all, I know in Windows there's built in functionality on remote desktop servers to level CPU usage across users and sessions. I have a large RHEL server that's being used for some research computing...
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