Tagged Questions

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

learn more… | top users | synonyms (1)

0
votes
0answers
102 views

centos 7, xhost and other user than root

The following worked under CentOS 6: sudo su xhost + su - oracle xclock Under CentOS 7, I get an xclock after sudo su and xhost +, but a DISPLAY error when changing to the other user. Am I ...
0
votes
1answer
90 views

Sendmail Message Fail

On my Redhat Prod Server I installed Sendmail that I will use to send DB Backup completion mails to my email id. When I send a email from My Server A 172.16.233.2 to my email id abc@domain.com. using ...
0
votes
2answers
73 views

Redhat subscriptions - synchronise subscriptions

I have inherited a system admin role of a small cluster of redhat machines - most running rhel5 and one machine running rhel6. My sys admin skills are at the moment poor but I would like to improve ...
1
vote
2answers
64 views

How to disable SELinux without restart?

I need to disable SELinux but cannot restart the machine i followed this link where i get bellow command setenforce 0 But agter running this command i checked for that sestatus SELinux status: ...
0
votes
0answers
111 views

Unable to install Crypt::SSLeay perl module on RHEL 5.7 (x86_64)

Here is the scenario, actually my RHEL 5.7 (x64_86) server don't have internet connection. but I want to install Crypt::SSLeay perl module on that server. So I downloaded it from CPAN & then ...
3
votes
4answers
332 views

Run a script on multiple shells?

I have two servers one AIX with default shell ksh, the other RHEL with default shell bash. I have a script that is mounted on both that will run similar commands but for either AIX or Linux. This ...
1
vote
1answer
330 views

rhel 6 default gateway not working

I have six similar RHEL 6 servers in the lab and the settings are same in all the servers. The settings are, static IP address: 129.XXX.XXX.XX Subnet Mask: 255.255.254.0 Default Gateway: ...
0
votes
1answer
2k views

Redhat “httpd” can not start anymore. Showing “suEXEC” and “SELinux” notices

I'm on RHEL 6.5 and Apache 2.2.15. When I restart the httpd, I can not start that httpd anymore. Showing following things in the /var/log/httpd/error_log: [Fri Aug 01 18:31:48 2014] [notice] suEXEC ...
2
votes
1answer
106 views

What is the purpose of UUIDs for NICs?

On Fedora/RHEL/CentOS there is a line in /etc/sysconfig/network-scripts/ifcfg-x files which defines UUID: UUID=30fcd648-ad1e-4428-as6f-951e8e4d16df NICs have MAC addresses by them selves, so what ...
1
vote
0answers
132 views

How to configure a “point-to-point” connection with RedHat 6.5?

My servers are hosted at Hetzner and I need to create a point-to-point connection to my gateway. The server can only reach its gateway (and its locally configured) IP addresses directly. All other ...
0
votes
0answers
24 views

Is there anything in RHEL 6.5 that would affect I/O speed for something <24K vs >24K?

Generally, transactions for my app of setting and getting data internally are measured in a couple of millis. However, over 24K in size, that time can jump to just over 100 millis. Is there anything ...
2
votes
1answer
696 views

RHEL 6.4: Openssl 1.0.0-27 libcrypto and libssl missing

I am trying to install znc IRC bouncer, which needs openssl libraries: Error: Package: znc-1.4-1.el6.x86_64 (epel) Requires: libcrypto.so.10(libcrypto.so.10)(64bit) Error: Package: ...
3
votes
0answers
449 views

The equivalent of start-stop-daemon for RedHat 6

I have an upstart script to create a service in RedHat 6: env PLAY_BINARY=/usr/bin/play env HOME=/opt/warda env USER=root env GROUP=root [...] script exec start-stop-daemon --start --exec ...
0
votes
0answers
48 views

Samba 3 file sharing access permission problem onWindows

I'm trying to set permissions on a server RHEL v5 whith Samba v3. The configuration of /etc/samba/smb.conf is [project] valid users = proyecto, admin writeable = yes ...
0
votes
1answer
44 views

How does Grub boot off of a Windows partition?

I have a dual boot laptop that was built by Dell with Windows/Red Hat. The grub configuration says that it was made by Anaconda. The partitions are as follows: /dev/hda1 Dell Utility /dev/hda2 ...
3
votes
2answers
261 views

Creating a GnuPG keyring for apache

Here's the scenario, we're using GnuPG to encrypt data between 2 web servers. 1 is on RHEL. GnuPG will be accessed through cgi scripts to encrypt and decrypt. So I need a keyring that the apache user ...
0
votes
1answer
173 views

Answer password prompt programmatically via shell script

I would like to programmatically answer a password prompt using only shell script when prompted. Is it possible to automate this task in this way? I want to avoid other tools entirely - so no expect ...
1
vote
1answer
138 views

If a start-up script in `init.d` has standard output, where is that logged if anywhere?

We have a startup script that is symbolicly linked to /etc/rc0.d/K01ourapp. Apparently, it is not working as expected during shutdown. The script actually does a few echo calls that may help in ...
0
votes
0answers
24 views

PlayOnLinux(POL) Excel 2007 can not open more than one spreadsheet

I have Installed CentOS 6.5 - i386 and PlayOnLinux 4.1. On that MS Office 2007 is installed. Word 2007 is able to open more than one document simultaneously and also possible to perform Cut, Copy and ...
0
votes
1answer
54 views

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, ...
1
vote
2answers
1k 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 ...
0
votes
0answers
22 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 ...
4
votes
1answer
61 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 ...
0
votes
2answers
295 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 ...
4
votes
2answers
1k 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 ...
0
votes
0answers
51 views

Disa stig viewer don't read the log file

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 file. It ...
0
votes
0answers
562 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: ...
0
votes
1answer
48 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 ...
2
votes
1answer
411 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 ...
9
votes
2answers
2k 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 ...
3
votes
1answer
40 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 ...
1
vote
1answer
63 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 ...
1
vote
1answer
51 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 ...
1
vote
0answers
192 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 ...
2
votes
3answers
63 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, ...
2
votes
1answer
235 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 ...
4
votes
1answer
499 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 ...
0
votes
0answers
75 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 ...
0
votes
0answers
39 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 ...
1
vote
0answers
63 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 ...
0
votes
0answers
115 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 ...
2
votes
1answer
257 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 ...
1
vote
2answers
563 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 ...
2
votes
1answer
135 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, ...
1
vote
1answer
84 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 ...
0
votes
0answers
977 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. ...
0
votes
0answers
41 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 ...
1
vote
2answers
857 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 ...
1
vote
4answers
61 views

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 ...
1
vote
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 ...