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

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Why are man pages blank for non-root users?

. . . And how can I fix that? :-) I'm running RHEL 5 and when I try to view man pages as a regular user, they are blank. I've tried man man > manman.txt; cat manman.txt and there is no output, ...
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2answers
86 views

Chown permission denied on owned dir

I have following directory (/usr/local) rwxr-xr-x. 43 root root 4096 Jul 25 14:19 . rwxr-xr-x. 14 root root 4096 Feb 21 10:27 .. rwxr-xr-x. 2 root root 4096 Jun 28 2011 bin [...] rwxr-xr-x 1 ...
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7 views

PCI-e SSD - Not visible to sysstat's iostat or sar

I am attempting to get basic statistics during test runs on a server with a PCI-e attached SSD that is mounted on /dev/rssda1, however sar and other sysstat either do not log, or in the case of iostat ...
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1answer
19 views

. (dot) in file mode [duplicate]

I tar a folder on windows and untar on RHEL machine. ls -l shows a . in file mode and folders are in blue + yellow background. [root@xt-storage-01 apache-tomcat-8.0.5]# ls -l total 120 drwxrwxrwx. 2 ...
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31 views

Determining RHEL Type (Workstation vs Server)

How do I tell whether or not I have Red Hat Server or Workstation? I know my redhat release info is in /etc/redhat-release. Red Hat Enterprise Linux Client release 5.9 (Tikanga) I need to order an ...
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2answers
59 views

USB set to /dev/sda instead of /dev/sdb

I've been trying to use a kickstart file to guide the Red Hat installer (RHEL6.5) without user intervention. It correctly looks for the kickstart file in /dev/sdb/fs.cfg, but because the USB is ...
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21 views

Installing packages in Oracle Linux Server 6.5

This is the first time working on a non-Ubuntu distribution, I need to get the following packages, which in Ubuntu I just used this commands: sudo apt-get install libreadline6-dev sudo apt-get ...
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11 views

RHEL Stig Viewer

I'm Keith. I'm working with a dev group deploying RHEL 6.5. I have used the stig-fix-el6 stig master to stig my system. I attempted to use the Disa stig viewer to view the log, but it doesn't read the ...
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29 views

nfsd fails to start: modprobe: FATAL: Could not load /lib/modules/2.6.18-238.1.1.el5/modules.dep: No such file or directory

Before asking, here are some system specs: [root@SERVER ~]# cat /etc/*release **##############CARS build log for cars20-rhel-x86_64############## Date: Mon Feb 28 20:06:05 PST 2011 Builder: ...
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1answer
21 views

how to get effect of IP rules script in RHEL 6?

I have written one ip.sh file in that I have written one rule and then saved the iprules with the corresponding commands. Now when I opened /etc/sysconfig/iptables nothing is reflecting. I need the ...
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1answer
28 views

Upgrade a 32-bit RHEL installation to 64-bit

I recently encountered an issue where I had installed a 32-bit RHEL 6 server on a system with a 64-bit processor. I did some research and found that RHEL 6.0 has PAE enabled on 32-bit machines, which ...
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489 views

( /etc/sysconfig/iptables ) “Manual customization of this file is not recommended.” Why?

Editing this file directly /etc/sysconfig/iptables can save me so much headaches so much time and so on... and yet on the very top of the file it says.. Manual customization of this file is not ...
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1answer
36 views

Switching users without the - symbol

I had to switch to a different user earlier for something that I was working on. I have originally done: su support While I was successfully able to switch to support, I found I was unable to make ...
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1answer
26 views

Built new kernel, LVM won't mount from initrd

I need to upgrade my kernel on a RHEL 5 system to build with some experimental drivers. I have configured the kernel with module loading for LVM (dm_* modules). Once the initrd runs the /init ...
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1answer
36 views

Find package that uses a specific shell command

I believe I have installed multiple packages that use the same shell command to run. I know one of them, but I only vaguely recall installing the other and thus cannot uninstall it. I believe they're ...
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0answers
40 views

External VGA monitor port not working on HP Elitebook 2540p running RHEL 6.5

I'm running RHEL 6.5 on an HP EliteBook 2540p. When I connect the external VGA port to a projector or external monitor and press Fn+F3 to switch to the external port, nothing happens. Under System ...
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3answers
30 views

listing package dependents

I stupidly did "yum remove python" which also ended up removing all the packages that required python as well. Luckily, I have access to another Linux machine that is a near clone of this machine, ...
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1answer
54 views

How do I resolve an error when booting, “Couldn't find device with UUID…”

I have a RHEL 6 system, running on a VMWare machine. The admin of the VM server added a second RAID volume to the server, which my RHEL system does not use. Now, when I boot the RHEL system, I get a ...
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1answer
49 views

Maximum memory usable by a 32 bit RHEL 6 system

I have installed a 32 bit RHEL OS on a 64 bit system. From the wiki page of PAE: The Linux kernel includes full PAE mode support starting with version 2.3.23, with Linus Torvalds mentioning ...
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42 views

zip command is failing during high memory usage

We have several perl scripts, which generates and emails reports. The script that emails the files expects a .zip extension. The report scripts generates a .txt or .xls file and then runs the ...
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30 views

Internal secondary hard disk suddenly failing to mount

In RHEL5, my internal secondary hard disk (1TB) suddenly fails to mount after some unexpected power failure and after my system got off. But it's showing in BIOS and while Booting checking as sdb ...
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30 views

Installation from USB fails

I have a pretty old Ubuntu 8.04 machine. The machine doesn't have a DVD reader/writer in it. Challenge: Now, the challenge I am facing is to install RHEL6 in this machine. Obstacle 1: I needed to ...
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56 views

vdsm service won't start

I am currently evaluating Red Hat Enterprise Virtualization and have managed to set up the management server and the bare metal hypervisor. Now I'm trying to add a regular box running RHEL server 6.5 ...
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1answer
28 views

RHEL6 Can't make my script run on shutdown and reboot

I'm trying to execute a script in each shutdown and reboot but the script never runs. I created the script baseRhel64 and save it to /etc/rc.d/init.d I did chkconfig --add baseRhel64 I included in ...
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2answers
75 views

Install rcp on RHEL

I have a Linux Red Hat machine version 6.4 (64-bit). I notice that the rcp command does not exist on my machine (no rcp binary). I also searched in Google in order to find an rcp binary that will fit ...
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1answer
31 views

RHEL 7.0 can't connect to internet

I'm setting up a new RHEL 7.0 installation (we're running the trial), but I can't get it to connect to the internet from command line. I'm trying to add these repos, as I currently have 0 installed, ...
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1answer
31 views

SSH slow after configuring TCP Wrappers

We have SSH open on one of our production servers leaving it prone to various brute force attacks to break in. I reduced the attempts by changing the default port from 22. I want to further harden ...
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81 views

RHEL server Booting problem: "fsck.ext3: unable to resolve 'LABEL=/u01'

We had an old Linux server in the workplace for last few years, so I decided to turn it on and it's showing this problem during boot up: No devices found Setting up Logical Volume Management. ...
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20 views

Mirror mode openldap perfromance is slow when either mirrored node fails

I'm managing two openldap servers in mirrored mode. When either server fails ldap performs poorly, 30 seconds to several minutes to authenticate. Affected services include ssh and X11 (XDMCP). A ...
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2answers
78 views

Can't installing RPM package intltool?

I want to install on my Linux Red Hat machine (6.3 64 bit) the rpm - intltool-0.41.0-1.1.el6.src.rpm. For some unclear reason I get this: /var/tmp]# rpm -i intltool-0.41.0-1.1.el6.src.rpm ...
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4answers
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Detecting RHEL/RPM based distros

I'm trying to write a script to detect if it's being run on RHEL/RPM based distros. I've faced some odd systems configured such that both dpkg and rpm are installed, so doing a which rpm isn't a ...
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1answer
22 views

Taking the Linux Install CD out during Installation?

I'm installing rhel and need to install a driver during installation. The plan is to 'linux dd' at the boot promt and install then. However, I just wanted to know if there would be an issue with ...
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77 views

Error: iptables: No chain/target/match by that name

I am trying to configure proxy server on RHEL Server 6.5 using Squid and iptables. Below is the command I executed and the error message it displayed: vzlptest01 root [root] > iptables -A INPUT -i ...
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1answer
77 views

Trouble installing lxml with custom install location for libxml2/libxslt

I am attempting to install a python module called lxml to my account on a supercomputer running RHEL. I do NOT have root access or super user status. lxml requires the dev/devel versions of libxml2 ...
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3answers
506 views

CentOS - install using yum Apache 2.4

I need Apache 2.4 in CentOS because with Apache 2.2 mod_proxy_wstunnel is not possible. I have tried https://fedorahosted.org/SoftwareCollections/ but unfortunately its for RHEL after installing i ...
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0answers
84 views

tar: /dev/st0: Cannot write: Input/output error

When we attempt to use tar to write data to an LTO-5 tape, we get the following error. The device starts to write, and then fails. See the tar command and output, followed by the dmesg output. I ...
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2answers
40 views

Is it possible to obtain OS X versions of Unix tools on modern Linux distributions (like Ubuntu or RedHat)?

I have observed that there are often subtle and often annoying differences between the default versions of certain command line tools like paste and sed on modern distributions of Linux versus OSX. ...
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1answer
169 views

sudo environment: “g++: command not found”

I have a relatively fresh RHEL 6.5 install, on to which I have installed from source GCCC 4.9. After I installed GCC 4.9, I uninstalled the distro-provided older GCC version via: sudo yum remove gcc ...
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1answer
66 views

What is the foolproof/proper way to set hostname and domain on CentOS

I've seen a few ways of changing hostnames of domain names. One way is to issue the hostname command followed by the name such as: hostname localhost.localdomain /etc/sysconfig/network also has a ...
4
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1answer
72 views

STIG (Security Technical Implementation Guides) automation

Has anyone here found the best way to STIG a version of RHEL 6.x automatically? The other answers I have found are either out of date or do not completely STIG the machine. Even an image that has a ...
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1answer
74 views

Installing RHEL6.5 by swapping RPMs

BACKGROUND So I've been tasked with updating a system from RHEL6.0 to RHEL6.5 via a bootable USB. Due to size limitation, I've stripped (using the rpm -e command to prevent dependency errors) ...
2
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1answer
46 views

Red Hat internal specifications

I'm doing a homework assignment for my college, and I'm trying to find the parameters used in kernel compilation on RedHat. My teacher asks: "Analyse and describes in terms of models of each version ...
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1answer
63 views

Permissions changing on few files under /etc/

It appears that new permissions on /etc/issue and /etc/motd are reverting back to the original even if we change them. This is on systems running RHEL 5 and RHEL 6. Is there any rc script which ...
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2answers
37 views

NFS: share with all clients except one

I want to share a folder with all the network's clients except only one. This is my current /etc/exports file: /opt/resources *(rw,async) What should I add to prevent the client 192.168.1.24 ...
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1answer
23 views

How to configure my enviorment in such a way that a proper (different from the system one) version of library is used

I guess that this question is a borderline between ServerFault and StackOverflow and this site. But I think that U&L is most relevant. I have some C++ code that depends on a library in version X ...
3
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1answer
129 views

[RESOLVED]Various programs not working after yum install some packages

[RESOLVED]I found out that the Memory chip cause the problems. I change it and the system work fine now! I'm using RHEL6.0 and encounter the problem that gdb,yum,rpm don't work any more. Perhaps ...
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1answer
20 views

Kickstart file not being found in VituralBox

I am installing a STIG RHEL on a virtual box and therefore have a custom kick start file in the iso I am using. The iso structure looks like this for the kickstart file ROOT | |----stig_fix ...
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47 views

mailx attachment behaviour between RHL 5 and RHL 6

We have a line of code that does this in ksh, to send a file as an attachment in email: uuencode <filename> <filename.txt> | mailx someone@somewhere.com In RHL 5.2 mailx sends ...
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1answer
40 views

backup user accounts without giving a home directory to them

I am reinstalling the older Ubuntu machines with the latest RHEL 6.0 in servers. I have /etc/passwd and /etc/group and /etc/shadow file backed up for the list of user accounts that I need to create ...
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1answer
22 views

gnome-session error on rhel (canberra-gtk-module error)

When starting cppeclipse in gnome-session via vnc it appears following error on rh6 canberra-gtk-module not found, module is present in /usr/lib/x64/ also fails when LD_LIBRARY_PATH=/usr/lib/x64/ is ...