Linked Questions

104 votes
17 answers
169k views

CentOS vs. Ubuntu [closed]

I had a web server that ran Ubuntu, but the hard drive failed recently and everything was erased. I decided to try CentOS on the machine instead of Ubuntu, since it's based on Red Hat. That ...
DLH's user avatar
  • 1,115
110 votes
7 answers
28k views

How can the little guys effectively learn and use Puppet? [closed]

Six months ago, in our not-for-profit project we decided to start migrating our system management to a Puppet-controlled environment because we are expecting our number of servers to grow ...
drumfire's user avatar
  • 1,709
20 votes
9 answers
96k views

VMware ESXi shutdown triggered by APC UPS connected via USB

I am shipping a bunch of ESXi 5.1 servers to remote offices where they will be powered via APC UPS. I would like to have the UPS trigger a shutdown of the connected server - I would then rely on the ...
dunxd's user avatar
  • 9,694
72 votes
2 answers
34k views

Why is it so difficult to upgrade between major versions of Red Hat and CentOS?

"Can we upgrade our existing production EL5 servers to EL6?" A simple-sounding request from two customers with completely different environments prompted my usual best-practices answer of "yes, but ...
ewwhite's user avatar
  • 198k
30 votes
3 answers
18k views

The XFS filesystem is broken in RHEL/CentOS 6.x - What can I do about it?

Recent versions of RHEL/CentOS (EL6) brought some interesting changes to the XFS filesystem I've depended on heavily for over a decade. I spent part of last summer chasing down an XFS sparse file ...
ewwhite's user avatar
  • 198k
6 votes
2 answers
8k views

How can I pass kernel arguments via PXE to an Ubuntu-like OS installer ISO?

I'm in a tough situation in which I need to perform a remote installation of a QuantaStor (Ubuntu-based - hiss) appliance onto hardware with limited out-of-band access functionality. The target ...
ewwhite's user avatar
  • 198k
0 votes
2 answers
2k views

Why does Centos 6 have an older kernel than Ubuntu 12.04 [closed]

Hi can some one help me in understanding this. On Centos 6.2 its showing kernel as 2.6.32-220.el6.x86_64 whereas on Ubuntu 12.04 its showing as 3.2.0-23-generic. 3.0 kernel is one of the latest ...
kevin's user avatar
  • 191
2 votes
1 answer
5k views

Newer GLIBC for RHEL/CentOS 5.x

I have a situation where a group of developers is attempting to deploy a binary application to a series of RHEL 5.5 and CentOS 5.5 servers. Unfortunately, the application was developed on another ...
ewwhite's user avatar
  • 198k
1 vote
1 answer
4k views

KVM-Host OS recommendation [closed]

I am about to migrate a server installation (one OS) to a newer hardware and wish to enable/use KVM. So the hardware is fixed (https://www.hetzner.de/hosting/produkte_rootserver/ex40) , now I got the ...
rechbergerd's user avatar
5 votes
2 answers
390 views

balanced (currentness vs. stability) linux server distribution

I am a long-time user of Gentoo, both on the desktop and server. As a software engineer, I love its flexibility and customizability (as well as the fact that it is bleeding edge and a rolling release)....
khaos's user avatar
  • 213
1 vote
1 answer
900 views

hpacucli is unstable - Sometimes finds controller, sometimes not

I try to monitor the RAID-status on my HP ProLiant DL380 G5 with hpacucli 9.20. But, it's acting rather weird. Most of the time, it will return: root@SERVER:~# hpacucli ctrl all show Error: No ...
LarsErikP's user avatar
-2 votes
1 answer
576 views

Best Linux server OS versions to use [closed]

I am going to get a VPS/VDS and will be hosting several websites, Some type of chat server (XMPP, Openfire or eJabberd), and possibly a Teamspeak server. The websites will be mostly PHP based with ...
Core's user avatar
  • 135