Red Hat Enterprise Linux (RHEL) is a commercially supported Linux distribution.

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After added SLC6-OS repo to RHEL6, should I let it update 1200+ packages (400M)

I have RHEL6.4, and have added several repos to it to try and add some common tools, gcc for example. It was recommended I add SLC6-OS and use that for installing tools like gcc, but when I do: ...
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What means “removing packages from package profile” in up2date in RHEL?

What does "... removing packages from package profile: ['package1', 'package2']" mean in RHEL, in the /var/log/up2date log? I thought it was dependencies, but the software is still present.
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Accidentally Formatted Red Hat Linux Patition : Getting Grub command prompt [on hold]

I have 2 disks on my PC. Disk 0 contains Windows 7 and Ubuntu Wubi installation and Disk 1 contains Red Hat Enterprise Linux Installation. When I used to turn on my PC, I was by default taken to a ...
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15 views

Shell script to monitor log files going over a certain size [duplicate]

Due to another issue I'm tracking down, one of my app servers occasionally starts generating a large amount of errors and then becomes unresponsive. For now, the simple solution is to restart the ...
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1answer
158 views

What is the purpose of avahi on a RHEL 7 server?

Running a server machine with CentOS 7, I've noticed that the avahi service is running by default. I am kind of wondering what the purpose of it is. One thing it seems to do (in my environment) is ...
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2answers
44 views

Can't install any packages on RHEL because of dependancies

Trying to install packages, and keep getting dependency errors. Already installed EPEL, IUS, REMI repos. Example: yum install gcc and I get Error: Package: ...
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Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message I've created new partition(/dev/sda6) and mounted it(on /hulk). Edited /etc/fstab file to give quotas on the ...
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29 views

messed up repos in RHEL6

I have RHEL 6 and have installed a bunch of the common repos (epel, etc) and somehow screwed up the repos (I think with a repo clean command) I was getting errors specifically with EPEL, so I removed ...
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27 views

Latest libxml2 port to RHEL4

I am currently installing ModSecurity on our development servers and the problem that I am running into with the latest version is that we are utilizing RHEL 4 on our servers. They have no intention ...
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24 views

Rebuilding the Linux yum repository metadata

On a RH 6.5, running yum update I get : "This system is receiving updates from RHN Classic or RHN Satellite. Setting up Upgrade Process Error: Cannot retrieve repository metadata (repomd.xml) ...
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28 views

Using autofs to mount a NFS share

I am trying to setup a RHEL 7 machine with an autofs NFS mount (the NFS mount is a Windows 2012 R2 server running Services for NFS). Here are the contents of /etc/auto.master: /nfs /etc/auto.nfs ...
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91 views

How to make NIC team come up on boot in RHEL 7

To configure networking on RHEL 7, I created a JSON file for teaming, then ran these commands: ip link set down eno1 ip link set down eno2 ip link set down eno3 ip link set down eno4 teamd -g -f ...
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1answer
20 views

Setting up 3rd party sftp server to run on port 22

I'm trying to setup CrushFTP 7 on a RHEL 6.5 machine and am having issues. If I leave everything as default I can connect using port 2222 but I need to be able to have CrushFTP respond to requests on ...
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2answers
37 views

Why does RHEL offer updates for hardware I don't have?

RHEL 7 offers me to install 150+ updates, and it seems most part of these updates are not applicable to my server. For example it offers to install some "WiFi" Firmware, but my server doesn't have any ...
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9 views

Veritus volume manager perl not avaliable

I am trying to install veritas volume manager on Centos 6.5 while running the script its throwing me Cannot find perl to execute
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31 views

How to configure teaming in RHEL 7?

I've used RedHat documentation to configure LACP on my server. Now I see "Connecting" on the Team just created: why "team0" is mentioned twice in the list? Why is it "Connecting", not "Connected? ...
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15 views

Configure cron for daily NMon task

I want to configure a cron job for NMon to gather stats during all day, everyday. Leaving a file per day to dump into NMon Analyser. I know the proper command to get a spreadsheet format its ...
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1answer
34 views

How to keep the VNC service running after reboot (RHEL 6)?

I have installed the vncserver related package and am able to access the desktop through the client. But on restarting the Linux machine, I am loosing the VNC session and again I am supposed to run ...
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1answer
36 views

RHEL 7 - how to configure teaming on internet-less server?

I'm preparing to install RHEL 7 on my server. I read in doc that The networking teaming daemon, teamd, is not installed by default. To install teamd, issue the following command as root: yum install ...
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1answer
28 views

Reboot Redhat Enterprise Linux

How can I reboot the RHEL from CLI using the systemctl method?
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50 views

ssh public key authentication not working

I had my keys set up so I can ssh between machines without having to enter a password and everything was working for a while but then, all of a sudden, I'm being prompted for a password on some ...
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3answers
43 views

Change login user account when accessing server through Putty

I am a very new systems administrator. I have been hired in as a junior and came from a Windows administration back ground. I have about one month of Linux experience. I have a lot of resources that ...
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53 views

RHEL 6.1 yum hangs on “Updating Red Hat repositories.”

I just registered my RHEL 6.1 system using rhn_register. However, when I try to run any "yum" command, it gets stuck on "Updating Red Hat repositories" and never does anything. BTW I can run this ...
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18 views

How are network and SCSI kernel modules handled differently from other kernel modules?

I used modprobe to load the 8021q.ko module on a server. I expected to have to do this every time the server rebooted until I made it persistent. However, to my surprise, it was loaded automatically ...
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1answer
36 views

cd to a child directory of a symlink fails

To build a kernel module, you have to do make -C where -C is cd functionality. As my make failed a lot of times, I found this: [root@ror6ax2 modules]# ls -l /lib/modules/`uname -r` | grep build ...
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26 views

RHEL: man page for interface configuration files

How to get the man page for ifcfg-$Interface files? Something like man 5 $Keyword for /etc/sysconfig/network-scripts/ifcfg-enp0s3. Is there not a man page? Is the keyword wrong? RHEL:~# cat ...
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42 views

How do I resolve the url timeout error when running a yum command?

I'm trying to upgrade SVN 1.6 to 1.8. When I run the commands: yum install mod_dav_svn subversion I get the following error (after a short pause): ...
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1answer
31 views

Yum installation of package specific modules

I was playing around with texlive package recently and found out that there is a way to install tex style packages with yum install 'tex(package.sty)' command. I've never seen package name was ...
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1answer
14 views

Kickstart using only SAN disks

How would a kickstart file look like (using RHEL or a RHEL derivative), or is it even possible with it when we have zero local disks, and we only have disks from SAN? (Kickstart method is needed ...
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64 views

How to uninstall vmware-tools-foundation

So I am having lots of problems with this: Warning: RPMDB altered outside of yum. ** Found 21 pre-existing rpmdb problem(s), 'yum check' output follows: ...
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3answers
348 views

Why when I ssh into one server it shows bash and the other have my username?

So at work I have two web servers that I am able to ssh into. Both are RHEL 6.5 When I log into one, it shows this: [username@ldvweb01 /]$ When I log into the other one it shows: -bash-4.1$ ...
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150 views

Where can I download i686 RedHat 4 bash package?

https://rhn.redhat.com/errata/RHSA-2014-1293.html The offical announce is only starting at RHEL 5. There are no packages for RHEL4? According to Wikipedia, it's still supported until the start of ...
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31 views

Permission denied tmp dir on STIG RHEL

I am writing a program for a DISA STIG version of Red Hat Linux 6.5. I wrote a shell script to do self extracting on the program and when it self extracts put temporary files in the tmp directory that ...
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1answer
27 views

What are the potential negatives of turning on process accounting (psacct package)?

I am looking into turning on process accounting on some EL6 servers. What are the potential pitfalls of turning this on? If you mitigate storage requirements with log rotation, any reason you would ...
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1answer
30 views

What's the difference between TYPE and DEVICETYPE directives in ifcfg scripts?

While learning the Network Teaming objective of the RHCE (RHEL7) exam I noticed that examples use DEVICETYPE directive in the ifcfg scripts for master and port interfaces. I knew there was TYPE ...
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58 views

How to surpress audit daemon rotating log messages?

On a CentOS 7 system messages like these are logged several times a day: Sep 24 00:11:42 example.org auditd[756]: Audit daemon rotating log files Sep 24 00:26:23 example.org auditd[756]: Audit daemon ...
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1answer
28 views

How to merge config files interactively after “yum update”

After system packages are updated with "yum update", config files which could not be overwritten are not replaced, but we can find *.rpmnew files near by. By design system administrator must merge ...
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40 views

Yum or Reposync: How can I slowly remove a repository without unintended dependency issues?

I have used reposync to create and maintain local copies of two repositories, remi and remi-test. These are repositories maintained by Remi Collet. On several systems in an internal LAN, I added both ...
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54 views

Should reposync download repodata?

I am using reposync on an RHN repo. It downloads the RPMs find but doesn't download repodata. I know I can run createrepo, but I'd like to keep group install info. Is this nornmal behavior? If so, ...
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70 views

Screen capture application for RHEL6.5

I need some screen capture application for RHEL6.5 and tried few ways to get one but failed. yum install gnmoe-utils and got: Reading Local RPMDB rpmdb time: 0.000 Setting up Install Process ...
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1answer
40 views

How to install glibc version that corresponds to GCC 4.4 on RHEL5

We have a program with executables built on RHEL6 using GCC4.4 and we need to run it on RHEL5.5. But RHEL5.5, by default does not have the necessary version of glibc. Has anyone faced such an issue ...
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97 views

How to force change linux password even if similar as previous

I am trying to change my current password in Red Hat Enterprise Linux Server release 5.10 (Tikanga) but it says my new password is too similar. Is there any way to force change ? $ passwd Changing ...
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39 views

Root is receiving “operation not permitted” error when trying to move a a users .bash_profile

This are the permissions on the RHEL5 machine: [root@server1 belmin]# ls -la | egrep '\.(bash_profile)?$' drwx------ 9 belmin belmin 4096 Sep 16 14:29 . drwxr-xr-x 40 root root 4096 ...
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1answer
80 views

Process ownership on linux changes to root when the user tries to kill the process

We have a bunch of RHEL machines which all run an application binary that is owned by root and has SUID set. Let's say user X starts the application, the process starts with PPID 1, since SUID is set ...
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43 views

Init script to run a script as specific user

/apps/data/service/bin/startup.sh This is the script i want to be executed during RHEL booting. I want it to be run in runlevel 3 only. And i want this script to be started as specific user, ...
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32 views

Possible to install Linux RHEL completely offline?

The documentation on Linux RHEL seems to assume you have a connected machine and will be installing through that connection. I need to set up RHEL completely offline using CD-ROMs only (no USB). Is ...
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55 views

Can anything useful be done with a truncated core?

We have processes written in a mix of Python, Java and C++ that core dump from time to time. They allocate more memory in chunks as needed during runtime, and are known to crash when their allocation ...
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82 views

.bashrc and .bash_profile not executed [closed]

I'm running RHEL5. I added simple alias command into ~/.bashrc. When I start a new terminal, nothing happens but source ~/.bashrc works so I know the syntax is correct. I also ...
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1answer
369 views

Rhel7: telnet: no route to host

I have installed RHEL7 GA version, and installed the xinetd and telnet packages. But when I am trying to telnet from another host to RHEL 7 its giving this error: Trying 10.235.x.x... telnet: connect ...
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37 views

Get KERN_DEBUG messages into syslog on rhel7/centos7?

I've been trying to get KERN_DEBUG messages logged to a file in centos7, but have had no luck. I can get them just fine from "dmesg," but not /var/log/messages or /var/log/dmesg Here's a MWE kernel ...