Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [redhat]

Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite. Please also consider whether or not the more specific RHEL5 or 6 tags might be appropriate as well.

Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite.

3259 questions
44
votes
1 answer

Is there still a use for irqbalance on modern hardware?

This question has been asked before, but I believe that the world has changed enough for it to be asked again. Does irqbalance have any use on today’s systems where we have NUMA-capable CPUs with memory sharing between their cores? Running…
espenfjo
  • 1,686
  • 2
  • 13
  • 15
44
votes
8 answers

What is the value of JAVA_HOME for CentOS?

I have install java through yum on CentOS, however another java programme needs to know what the JAVA_HOME environmental variable is. I know all about setting environmental variables, but what do I set it to? java is installed in /usr/bin/java, it…
Amandasaurus
  • 31,471
  • 65
  • 192
  • 253
43
votes
6 answers

How can you tell what a server actually does?

I've been handed 3 Linux boxes, 1 front facing with apache on it and another 2 which, as far as I can tell, don't do an awful lot. All running on Redhat. The question is simple: How can I tell what the server is actually doing? Zero documentation is…
Bizmark
  • 598
  • 4
  • 5
41
votes
3 answers

What is gssapi-with-mic?

Debugging a Nagios warning on ssh, I've discovered that gssapi-with-mic is causing long lags in authentication. I've turned it off, but what exactly am I missing? I gather that GSSAPI is a tool for authentication, but what about the -with-mic part?
jldugger
  • 14,342
  • 20
  • 77
  • 129
41
votes
5 answers

How do I enable apache modules from the command line in RedHat?

How do I enable apache modules from the command line in RedHat? On Debian/Ubuntu systems I use a2enmod to enable modules from the command line. Is there an equivalent for RedHat/CentOS type systems?
MarshallY
  • 533
  • 1
  • 4
  • 8
41
votes
6 answers

Where is the sshd log file on Red Hat Linux stored?

Can someone please tell me where to find the SSHD log on RedHat and SELinux.... I would like to view the log to see who is logging into my account..
user150591
  • 437
  • 1
  • 4
  • 6
41
votes
7 answers

Reasons to disable / enable SELinux

In the line of this question on StackOverflow and the completely different crowd we have here, I wonder: what are your reasons to disable SELinux (assuming most people still do)? Would you like to keep it enabled? What anomalies have you experienced…
wzzrd
  • 10,409
  • 2
  • 35
  • 47
41
votes
5 answers

How to list RPM dependencies?

Our production server is running CentOS release 5.2 (Final). How do I see/get/list all the dependencies of an already installed RPM package? For example: SQLite v3.3.6 is already installed in the server. I want to see all the dependencies of this…
Gnanam
  • 1,459
  • 13
  • 26
  • 32
40
votes
6 answers

How do admins maintain user accounts across hundreds of linux servers?

Dealing with hundreds of RHEL servers, how can we maintain local root accounts and network user accounts? Is there an active directory type solution that manages these from a central location?
Ronaldo Nascimento
  • 483
  • 1
  • 5
  • 8
38
votes
3 answers

How to enable PowerTools repository in CentOS 8?

Since I had a lot of trouble finding out how to do this anywhere, I'd like to ask, how do I enable the PowerTools repository in CentOS 8? (equivalent of CodeReady Linux Builder repo in RHEL 8)
omusil
  • 483
  • 1
  • 4
  • 5
38
votes
4 answers

What is needed for a linux service to be supported by chkconfig?

I am trying to add to the auto start at boottime a linux service through the chkconfig -add and I get a message saying service does not support chkconfig I am using Red Hat Enterprise 4. The script I am trying to…
Geo
  • 3,071
  • 11
  • 42
  • 52
37
votes
2 answers

How to get ldapsearch on Scientific Linux?

How do I get the ldapsearch on Scientific Linux? I am trying to find the ldapsearch client for Scientific Linux but cannot find how to install the client in order to do LDAP queries.
techsjs2012
  • 545
  • 2
  • 6
  • 10
37
votes
6 answers

Hardware Firewall Vs. Software Firewall (IP Tables, RHEL)

My hosting company says IPTables is useless and doesn't provide any protection. Is this a lie? TL;DR I have two, co-located servers. Yesterday my DC company contacted me to tell me that because I'm using a software firewall my server is "Vulnerable…
user80776
35
votes
6 answers

KVM Guest installed from console. But how to get to the guest's console?

I'm trying to install a fully virtualized guest (Fedora 14 x86_64) on KVM (RHEL 6), using command-line only (both hypervisor and guest). It goes without errors, and without a tangible result . I'd like to know how to do a text-only installation. So,…
badbishop
  • 928
  • 4
  • 12
  • 21
34
votes
4 answers

How do I install 'convert' on a linux system?

My application needs to call 'convert' - http://linux.about.com/od/commands/l/blcmdl1_convert.htm But its not present on my redhat system. How / what do I install?
siliconpi
  • 1,807
  • 6
  • 32
  • 46
1
2
3
…
99 100