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

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4
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SELinux httpd write access to a directory

I am new to SELinux. came from debian. I want to give httpd access to a directory. SELinux Alert Browser suggests: # grep httpd /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp ...
7
votes
2answers
22k views

How to add an item to the Applications menu?

How can I add an application to Applications > Internet in Gnome Desktop running on CentOS 6.4? Per this old Docs link, it suggests to edit /etc/xdg/menus/applications.menu. How can I add ...
4
votes
2answers
3k views

How to control thinkpad_acpi via procfs, RHEL 6.4

I'm having trouble with the thinkpad_acpi module on my Thinkpad T400. While the processor temperature can vary, depending on the CPU activity, from 40 to 85 deg. Celsius, my fan speed remains almost ...
2
votes
0answers
135 views

How do I ssh into a new virtual machine?

note by derobert: problem was resolved in chat, starting around http://chat.stackexchange.com/transcript/message/24666451#24666451 if someone wants to write up an answer. Turns out the bridge wasn't ...
2
votes
1answer
2k views

cat file to multicast

I have a text file (test.txt) which represents captured network data. The actual protocol is text-based, with NULL line endings, so this isn't a problem. I need to run this test captured data ...
2
votes
2answers
543 views

Where to apply xmodmap for systemwide usage?

I need to apply a custom xmodmap for all users at the start. Where do I need to put it? I have thought at /etc/rc.local? Does this make sense?
7
votes
2answers
8k views

Which of these three commands is telling the TRUE Redhat release information

I was checking for the Redhat release so this time I used three different commands. Two commands gave the same result but the third command gave different result. Which one is right. ...
7
votes
2answers
2k views

Is it possible to create a directory and file inside /proc/sys?

I am running CentOS 6.2 and I need to create a subdirectory named "crypto" inside /proc/sys. Inside /proc/sys/crypto, I need to create a file named test which contains the value "1". I have tried ...
7
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3answers
2k views

Once sudo su'd to root, is there a command to see my username?

I have sudo rights on a redhat box; once I've sudo su - to become root in a shell, are there any commands I can run to see what username I su'd FROM?
6
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2answers
3k views

How could we allow non-root users to control a system.d service?

With sysvinit, a sudoers entry like this would suffice: %webteam cms051=/sbin/service httpd * This would allow for commands such as: sudo service httpd status sudo service httpd restart Now, ...
5
votes
3answers
2k views

Performing accurate snapshot and incremental backups to a remote server

I have a few Ubuntu (and potentially RHEL) servers I'd like to back up to a central backup server (via rsh/SSH). I'd like to do both snapshot and incremental backups. The goal is that if one of the ...
5
votes
3answers
5k views

Change /dev/sd* for USB Linux install?

I am trying to install Scientific Linux 6.1 (which is literally RedHat Enterprise Linux without the branding) by booting its installer from my USB drive. The installer starts fine, but two things ...
4
votes
1answer
3k 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 ...
3
votes
1answer
8k views

Mount samba filesystem into RHEL 5.5

I have a trial RHEL version for a proof of concept where I was asked to mount a windows filesystem into linux. I tried mount -t smbfs -o username=samba,password=samba //Desktop/Public /mnt/public ...
2
votes
1answer
126 views

How to permanently disable root-password prompt for recovery mode, RHEL6

In the rare cases that a RHEL or CentOS 6 system is prevented from booting by (for instance) an improper shutdown, or a forced fsck-check failure on boot, the console will prompt the user for a root ...
2
votes
2answers
2k views

how to add line in a /etc/sudoers file with the help of shell script (50servers)?

Anyone can help me with shell script, I want to know script which can edit /etc/sudoers file and let me add {{{{{userid ALL=(root) ALL}}}} to 50 server I have on same network?
1
vote
2answers
9k views

How can I set up Virtual Hosts in Centos7?

I am trying to set up virtual hosts in Centos7. I followed this guide: http://twohlix.com/2011/05/setting-up-apache-virtual-hosts-on-centos/ however I keep getting the following error: Job for ...
1
vote
1answer
1k views

httpd-devel requires outdated version of glibc-common on CentOS 6.3

httpd-devel requires an outdated version of glibc-common on CentOS 6.3 x86_64 and Apache/2.2.15. It wants 2.12-1.80.el6 and I have 2.12-1.80.el6_3.3.x86_64 installed (via CentOS @update repo) Here is ...
0
votes
4answers
5k views

How to verify if the Language is installed

Is there some command for Redhat Linux that can tell me whether the Arabic Language is installed on Redhat 5.6 Server.
8
votes
1answer
7k views

Install g++ when having gcc (C only) — RH6

I have a RHEL 6 machine, which came with gcc but without g++. The gcc version is 4.4.4 20100726 (this is what I got from gcc --version). How can I get g++ working? Currently, the shell just returns ...
6
votes
1answer
619 views

Are Debian- and RedHat-style repositories compromised by Heartbleed OpenSSL bug?

The Heartbleed exploit (CVE-2014-0160) makes SSL connections using OpenSSL vulnerable to private key leakage. Does it mean that official update channels in RHEL/CentOS/etc. and Debian/Ubuntu shall be ...
6
votes
2answers
683 views

'man' page is too narrow (not taking advantage of terminal size)

I'm making my first 'man' page and I'm using groff to do it. However, when I "compile" it and view it, it only takes up a certain amount of columns in my terminal. I've tried viewing other man pages ...
6
votes
1answer
590 views

Why does `man -k cron` say `vixie-cron (rpm)` for some results, and how do I read those pages?

I'm trying to find out some details regarding cron and /etc/cron.d/ on a RedHat system. Ironically, my answer is viewable within the vixie-cron-*.src.rpm for this package, but the the man pages for ...
4
votes
2answers
645 views

How to permanently disable root-password prompt for recovery mode, RHEL7

Note: I asked a similar quesiton concerning version 6 of these bundles here. Note that 7 uses systemd and may have a different implementation In the rare cases that a RHEL or CentOS 7 system is ...
4
votes
2answers
5k 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 ...
4
votes
2answers
11k views

/usr/bin/ld: cannot find -lcrypt (rhel 6 )

System info [root@xilinx busybox-1.22.1]# uname -r 2.6.32-71.el6.x86_64 Following errors come when I make busybox on rhel 6: /usr/bin/ld: cannot find -lcrypt collect2: ld returned 1 exit status ...
4
votes
3answers
2k views

Recompile Kernel to Change Stack Size

I need to recompile my kernel on RHEL WS5 with only two changes. Change stack size from 4k to 8k Limit usable memory to 4096. How do I recompile the kernel without changing anything else but ...
3
votes
0answers
2k 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 ...
3
votes
1answer
6k views

Location of dhclient.conf

I need to check the client DHCP settings, which I expect to be in the file /etc/dhcp/dhclient.conf, but there is no such files there. What is the location of this file in RHEL 6, on 64 bit?
3
votes
1answer
2k views

RHEL - GDM could not write to authorization file

I am getting an error as "GDM could not write to your authorization file" if I try to login as a non root user in my RHEL system. I restarted the machine hoping that the tmp files will be cleared and ...
3
votes
1answer
2k views

Not able to extend the size of an LVM logical volume

During RedHat installation, I created one volume group with two logical volumes in it. Volume Group Name = VolGroup00 LVMs = LogVol00 and LogVol01 LogVol00 size = 48G LogVol01 size = ...
3
votes
1answer
655 views

GDM will not start on boot, unable to login into graphical interface

I am running RHEL 5.8 . SELinux is enabled but in permissive mode. Here are some snippets from /var/log/messages on boot. kernel: type=1400 audit(1360613500.551:6): avc: denied { write } for ...
3
votes
2answers
7k views

Run getty on a serial port on startup on RHEL

I want to put a getty on ttyS2 on a RHEL 6.1 box so I can use IPMI's serial-over-ethernet functionality to log in to a machine when SSH isn't working. In the past (on Ubuntu?), I used to add a line ...
3
votes
1answer
1k views

SSH getting disrupted intermittently

I have Red Hat Linux Enterprise Edition 5 on my box. Recently I started having issues with my SSH service not keeping my connection and randomly disconnecting my clients. Ping works perfectly fine, ...
2
votes
1answer
541 views

CLIENT wrappermode (port smtps/465) is unimplemented

I am getting the following error when I try to send email using a relayhost from a CentOS 7 server using postfix: Oct 19 19:53:08 localhost postfix/pickup[7174]: 64DAF1A53CB: uid=1002 ...
2
votes
1answer
92 views

how do I create an appropriate drive for a libvirt virtual machine?

I am trying to use virt-install to create a CentOS 7 virtual machine in a CentOS 7 host. Towards that end, I have been reading the virt-install documentation at the RHEL web site, and I have also ...
2
votes
1answer
134 views

/etc/fstab 5th column

Whatever I have understood so far about the 5th column of /etc/fstab that it is for dump command to run on that file system. if entry is 0 dump command will not run and if the entry is 1 then dump ...
2
votes
2answers
3k views

What is the correct way to resolve this rpm conflict? (Error: p11-kit-trust conflicts with nss-3.13.3-6.el6.x86_64)

It has been a while since I updated one of my RHEL6 machines (except for the occasional update of specific packages with known vulnerabilities). As a result of this, I have an old ca-certificates ...
2
votes
2answers
62 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. ...
2
votes
3answers
6k views

What commands are available in the %pre section of a Kickstart file on CentOS?

Environment: CentOS 5.5 and 6.4 I have a request to analyze the hardware before installation to make sure our customers don't install our software on sub-standard server hardware. For example, ...
2
votes
1answer
2k views

Logging %pre during kickstart - logfile doesn't exist after boot

I am kickstarting several EL6 systems and I want to log the actions taken in my %pre section. I know that I can log the %post section per the hints provided by centos.org: Tips and tricks for ...
2
votes
1answer
130 views

Update different dropbox instances

I am using dropbox on my redhat linux kernel. Right now we have a dummy user set up, with it's own dropbox account. Everyone can access and dump their files into it while on the machine and then ...
2
votes
3answers
348 views

Single CD install of a RHEL-like distribution?

Can someone suggest a RHEL-like distribution that can install from a single CD? I am looking for a distribution where services are started from /etc/init.d, environment variables are set from scripts ...
2
votes
3answers
1k views

Static DNS setup on client of shared internet connection

I've 2 linux computers, one redhat (client), and one ubuntu (set up with shared internet connection as described here) At the moment, on the wired connection between the computers, I can ping the ...
1
vote
1answer
75 views

Unknown TCP Service when installing stunnel

I am trying to install stunnel on a CentOS 7 server, but I am getting an Unknown TCP Service error. How can I resolve this error to complete the stunnel installation? I installed and tested ...
1
vote
1answer
76 views

enabling smtp on port 465 and imap on port 993 for webapps running on centos 7

A CentOS 7 development server is used for prototyping webapps that send and receive email using JavaMail to connect with a remote mail server elsewhere on the internet. The remote mail server uses ...
1
vote
1answer
46 views

Redirect rule for Apache : Adding www to URL

I want to add www to my URL e.g example.com.au . Right now if I type www.example.com.au in the browser it gets changed to http://example.com.au . I want it to be http://www.example.com.au . Below is ...
1
vote
1answer
129 views

Improving performance of script [closed]

I have been working on a script that can be used to automatically restart my Zabbix monitoring services in the event that they stop running. I have the script working just fine, but figured it could ...
1
vote
1answer
319 views

SysV init scripts to systemd migration in RHEL7

Please find the Sys V Init scripts for (User processes)Agent and Security daemon in Linux. Agent Daemon startup script /etc/rc.d/init.d/Agentdaemon /etc/rc.d/rc5.d/S91Agentdaemon Security Daemon ...
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2answers
1k views

RPM command stuck/FREEZE when installing RPM file

I want to install the following rpm from some reason RPM is stuck or freeze and not install the RPM package also I cant stop it by control C , please advice what could be the problem ? root]# rpm ...