Zabbix vs Nagios - what are the cases for using one or the other in an...
Say I want to utilize various forms of monitoring 50 or so servers, five or so routers, a dozen or so switches, and maybe another 50-100 client nodes. Monitoring might involve anything from ICMP to...
View ArticleFrom LPIC to RHCE: Bridging the Gap
After I finish up my testing for A+ and Network plus by mid October, or maybe even today or tomorrow, I was going to watch all of my CBT nugget videos for LPIC to learn linux. Before that I had watched...
View ArticleIs there a version of pdbedit that works on posix attributes?
I there any version of pdbedit I can use to manage the posix attributes of domain accounts so I don't have to resort to manipulating the ldap directly? submitted by Oflameo [link][1 comment]
View ArticleError with FreeRadius & Active Directory on CentOS
Here is the error I get when a laptop tries to connect. I'm really at a loss at what to do now. submitted by Umbra_Chimera [link][3 comments]
View ArticleBuilding a Highly Available File Server Cluster
Hey folks,I'm working on building a highly available file server cluster with a pair of CentOS 6.5 servers and a slice of SAN storage. I used LINBIT's guide for NFS on RHEL 6 as a blueprint and...
View ArticleSome help needed with 389-ds and Centos 5.5 client
Hi allI've inherited a bunch of linux servers on which LDAP is configured using 389-ds and SSSD. Mostly on Centos 6.5 and Ubuntu 12.04/14.04. Previous admin (whch I am not) left instructions for adding...
View ArticleVerify Failing Drives in Linux
I'm a PostgreSQL administrator which is running on CentOS 6. My question is from time to time, I will ask if there's any issues w/ "the database" in regards to CRUD operations are slow. I usually have...
View ArticleApache/LAMP gurus, a performance question
The question, followed by details: my websites are currently loading in 4+ seconds for normal operation. That's unacceptable but I'm honestly stumped with how best to fix it. It appears as if a large...
View ArticleSetting up ansible user on multiple hosts
So I'm trying to wrap my brain around ansible. I spun up a test box to install/test ansible, created a user and generated an ssh key. Here's where the frustration starts: Now I've got to setup my...
View ArticleComprehensive tutorial on tcp/ip and iptables -- worth a read for anyone...
http://rlworkman.net/howtos/iptables/iptables-tutorial.html#INTRODUCTION submitted by pupp3t33r [link][7 comments]
View ArticleSystemD Service Listing Options
Dealing w/ my 1st production server getting ready to go live w/ CentOS 7. My question is how can I get a full listing of all the services available in CentOS 7 via systemd?In an 'init.d' world, I would...
View Article[postfix] BCC all error mails
SOLVED: http://www.reddit.com/r/linuxadmin/comments/2infqe/postfix_bcc_all_error_mails/cl3wy99Hello,I'm sure this is possible, but my google-fu is just not strong enough.Can anyone provide me with a...
View ArticleMigrating to a new Nimble SAN from a Dell Compellent SAN... Any suggestions...
As part of a DC migration from NY to SJ, we will be migrating our systems (a mix of Win/Solaris/OEL) from a Dell Compellent SAN to a Nimble SAN. There are two SANs (dev/prod) that are geographically...
View ArticleSystem is randomly freezing (For lack of a better word). Resumes normal...
I have been trying all night to move about 500GB of data via a Samba share between a desktop and laptop but kept experiencing random timeouts in the connection (And having to resume the transfer). I...
View ArticleI'd like traffic to/from an IP to use the interface that has that IP. How can...
Hello guys,Yesterday I successfully set up a server that has two physical network interfaces, eth0 and eth1. Each picks up its own IP address via DHCP. Both IPs are reachable, I've bound services to...
View ArticleStorage help
So we have the need to archive in one single storage area about 20 TB of data. We have an EMC VnXE, with 50 TB of space which has several limitations due to it using SCSI2 protocol. Regardless it can...
View Articleusing mysql select statements within apache configurations
I'm using mod_auth_cas to authenticate users but I want to grant access based on a mysql select statement. What I'm imagining is being able to do something like this:AuthType CAS <Limit GET POST>...
View ArticleMunin Trouble
HI Guys,I have been looking at this issue for far too long, and think I need someone else to gander over this.So I have installed Munin just to collate some nice graphs etc on a single test website I...
View ArticleApache setup to mitigate DDOS impact for shared hosting
Hi guys,We are a small software company that mainly serves to develop LAMP based business software for clients, and as a side effect of this we offer hosting for many clients in a shared environment....
View ArticleHelp with hostapd and/or iptables. Not sure which.
I'm trying to configure the PC Engine's APU to use as my home router.From every tutorial I've seen it should work correctly. I can connect to the wireless network but it seems like the traffic isn't...
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