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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
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Is KVM a type 1 or type 2 hypervisor?

Is KVM a type 1 or a type 2 hypervisor? I understand that type 1 hypervisors run on bare metal while type 2 hypervisors are applications running on top of an operating system (such as VMware Workstation). I also understand that the performance…
Pétur Ingi Egilsson
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5 answers

Common wisdom about Active Directory authentication for Linux Servers?

What is the common wisdom in 2014 about Active Directory authentication/integration for Linux servers and modern Windows Server operating systems (CentOS/RHEL-focused)? Over the years since my first attempts with integration in 2004, it seems like…
ewwhite
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7 answers

How to change the time cron.daily is run in linux

I have a script in cron.daily that runs at a certain time every morning. I need to change the time that it is run. How do I change the time cron.daily runs the scripts?
Phil_Parnili
31
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3 answers

How to set the domain name on GNU/Linux?

Similarly to hostname that can be changed in different ways: temporarily using the hostname command permanently using /etc/hostname (or /etc/sysconfig/network or /etc/HOSTNAME, these files are used by the init scripts) I want to change my domain…
Mildred
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How to install git to red hat enterprise linux 5.3 x64?

How can I configure yum to use some repository which has git rpms?
BuyManAFish
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30
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3 answers

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 situation resulting from a poorly-documented kernel…
ewwhite
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2 answers

How to fix the warning: "RPMDB altered outside of yum"?

I have a RHEL 6 system, that I primarily manage through RHN Satellite. Recently I scheduled some updates through Satellite and received a response that the updates had failed. I ssh'd into the system to investigate, and saw this warning when…
audiomason
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3 answers

yum equivalent of "apt-get purge"

I want to reinstall a package on CentOS and start from scratch. In Debian, I can do a apt-get purge foo and it'll remove all config files for foo. yum remove foo doesn't remove the config files. Is there any way to do apt-get purge foo using yum?
Amandasaurus
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6 answers

Install Xvfb via yum - yum repository for Xvfb?

I am trying to install Xvfb on a RHEL 6.2 system using yum. However, all of the help that I've found says to type: yum install Xvfb or... yum install xorg-x11-server-Xvfb Which I'm sure would work if I had the correct repo configured,…
AWT
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29
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1 answer

What's the difference between /etc/cron.d and /var/spool/cron?

The crontabs on RHEL seem to be duplicated in two places, /etc/cron.d, and /var/spool/cron. I've checked, and neither of these are simlinks to the other, and neither are any of the crons contained in either location. I guess my most important…
Bart B
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6 answers

How to remove this warning "This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register."

I get the following error when i am listing the updates.Server is currently registered with ULN. Although its a warning, i do not want the below message displayed when i am issuing yum command.i found out subscription-manager plugin is loaded. How…
xrkr
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5 answers

How to unzip files bigger than 4GB?

I'm using RHEL 5.6 and unzip-5.52-3.el5. I'm trying to unzip a big file, but I get the error: unzip -o test.zip -d unzip/ error: Zip file too big (greater than 4294959102 bytes) Archive: test.zip warning [test.zip]: 4294967296 extra bytes at…
Noodles
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27
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How do I allow outgoing connections via iptables?

I have two servers. The program on the first needs to communicate with the second on port 2194. I know its not working, because when I do: root@server1 [~]# telnet myserver2.com 2194 Trying 123.123.123.98... telnet: connect to address…
siliconpi
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3 answers

How do I export and restore my iptables settings?

I have what appears to be weird and convoluted set of rules which work for me at the moment. Is there a way of "exporting" those and saving them to a file so that they can be restored later on in case things are messed up?
siliconpi
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25
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6 answers

What dir should I deploy Rails apps into?

What would be a reasonable and logical directory into which to deploy my production Rails apps on a Linux system? Some candidates... /var/rails <= There's a /var/www so this would be consistent with that pattern. But I.T. guys have…
Agvorth
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