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

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install redhat 6 without formating multipath disks

I've server RHEL 5 with multipath storage attached to it the OS is installed on local disks now I need to remove rhel 5 and install rhel 6 I perform fresh installation when i do this it shows me all ...
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2answers
36 views

Reference manuals for network configuration on Fedora/CentOS/RHEL?

Every time I need to configure a network interface on Fedora/CentOS/RHEL I need to access its online documentation to check which configs and values I should use in the ...
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2answers
31 views

How to find out contention

I'm looking for an easy tool, to graphically show the amount of resources being used realtime. Something like htop but with disk IO, memory and network usage as well. I tried ganglia and the fact ...
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1answer
892 views

libssl.so.0.9.8: cannot open shared object file: No such file or directory

When attempting to run Cloud9 IDE locally after its installation I receive this error: # bin/cloud9.sh Linux 64 bit support/node-builds-v4/node-linux64: error while loading shared libraries: ...
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1answer
431 views

Error inserting module: Device or resource busy

When running modprobe to insert a module into kerner I get the following: # modprobe 8192cu FATAL: Error inserting 8192cu ...
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2answers
116 views

Setting up a WLAN usb stick

I'm trying to make the WLAN USB stick connect to a wireless network. There was an official Linux driver available for download (v4.0.2_9000.20130911, which supports my Linux kernel version) and I ...
2
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1answer
151 views

libssh2.so.1.0.1 conflict in libssh2 install

I'm trying to install ssh2 for PHP in RHEL. But it required libssh2-1.4.2-2.el6.x86_64.rpm and libssh2-devel-1.4.2-2.el6.x86_64.rpm. So I downloaded and tried to install, I got below errors # rpm ...
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2answers
70 views

Isolate SSH Authentication Failures into Own Log File on RHEL 6.6

This may be impossible, but I've got a case where we want to log SSH authentication failures separately from standard SSH logging on a RHEL 6.6 box. I am aware we can use SyslogFacility with ...
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2answers
235 views

script for RHEL 6. (to check the status of CPU and send mail if CPU utilization more than 70%) [closed]

I am unable to make a script. Is there anyone who help me. Pls make a script for RHEL 6. * To check the CPU utilization if it goes more then 70% then we got a mail.
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1answer
101 views

rsyslogd HUPed repeatedly

Noticing that for a VM box, getting in the logs that rsyslogd process gets HUPed. Finding no ideas except a few post in some forums saying this is for logrorate. Any ideas how to fix/troubleshoot ...
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1answer
228 views

RedHat/CentOS 7.1: Change names of Gnome workspaces

RedHat/CentOS 7.1.1503; GNOME Shell 3.8.4 I name my workspaces after current projects I'm working on (for 1-4 weeks). How can I rename them from "1" "2"... to something like "Vienna" "Berlin"? In ...
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13 views

Is it possible to have an IPA user/group in both security limits and nproc limits

I am planning to deploy cassandra to a set of Red Hat 6.7 machines but there was an additional requirement to use IPA user for the cassandra user. For the cassandra user we usually do some ...
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0answers
142 views

NFS mounting options rsize and wsize can't be specified in /etc/fstab

As the Title, the options rsize and wsize can not be specified on Centos7(3.10.0-123.el7.x86_64) cat /etc/fstab: 192.168.11.1:/linux_nfs_share /mnt/nfs01 nfs ...
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1answer
47 views

Error setting certificate while doing 'git clone' in redhat

Error: % git clone --depth 1 http://github.com/junegunn/fzf.git ~/Downloads/fzf Initialized empty Git repository in ~/Downloads/fzf/.git/ error: error setting certificate verify locations: CAfile: ...
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1answer
111 views

HOWTO: Fix “Cannot parse sensitivity level in s0” error when attempting to start a KVM VM after a major OS upgrade

I have a Lenovo ThinkPad T430 running Red Hat Enterprise Linux 6.7 with kernel 2.6.32-573.8.1.el6.x86_64. This is a work computer and my corporate policy states that I must keep my operating system up ...
2
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1answer
365 views

Send Logs to multiple syslog servers

Previously we were using one Logging server. But now we have added one extra Logging server which will also be storing logs received from client . I need to know how to add these two Syslog servers on ...
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2answers
186 views

Compiling Octave 4 with OpenGL .. X11 configure script linking error

I want compile Octave 4 with OpenGL/GUI support but don't know which packages to install on RHEL/CentOS system. I only get warning: configure: WARNING: OpenGL libs (GL and GLU) not found -- disabling ...
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3answers
88 views

What does it mean a ! before the username field in /etc/passwd?

After doing some googling I could not find why in the /etc/passwd shows a ! at the beginning of the line. It looks like this: !user:x:0:0:user:/home/user:/bin/bash any ideas? my only guess is ...
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2answers
2k views

NFS servers and firewalld

I haven't found a slam-dunk document on this, so let's start one. On a CentOS 7.1 host, I have gone through the linuxconfig HOW-TO, including the firewall-cmd entries, and I have an exportable ...
2
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1answer
558 views

LVM filesystem is full, cannot update system amongst other things

I am running a RHEL 7 server with a license from my university. I am running it on a bare metal server in a local place on my university. I originally installed RHEL 7 with LVM on my hard drive (there ...
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1answer
252 views

Unable to install mod_pagespeed on Apache 2.4

I have installed Apache 2.4 on the Red Hat Enterprise Linux Server release 6.7 (Santiago) by following these steps Step1 cd /etc/yum.repos.d/ wget ...
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2answers
64 views

Keeping CentOS up to date in a flexible way without giving out root credentials?

Title was "Running yum update && yum upgrade without root-privileges?" I want to allow an unprivileged user to start a system update on a RHEL-based system (CentOS 7). yum-cron is not an ...
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2answers
40 views

Only print filepath,without filename [duplicate]

The find command find /MOS -name "001.txt" The print /MOS/XNF/N01/001.txt My questions Which option could only print the filepath,without the filename ? The print /MOS/XNF/N01/
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2answers
36 views

Rsync two “filepath” found by find commands [closed]

Original file /001day/backup/001m/name_test_v1.txt Destination file /001date/003m/name_test_v12.txt Method 1 rsync -av --progress /001day/backup/001m/ /001date/003m/ Method 2 ...
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1answer
60 views

Problems with qorum device on Cluster Suite

I've built a 2 nodes ha-cluster with Cluster Suite on RH6.5; the configuration is very simple: 1 lvm shared volume, 1 fs over the shared volume and 1 vip. I've a failover domain and I'm using a scsi ...
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2answers
159 views

find and print file path, without filename

Please check the below awk '/SOURCE/ {print $3}' /MAC/Delete_Name.txt | while IFS= read -r file; do find /OS/ -iname "$file.pdf" ; done This results in output like this: ...
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14 views

Cassandra nodes down in DataStax

I'm new in DataStax dashboard Configuration but i have critical requirement. I configured dataStax dashboard and i added all nodes. After that when i am clicking on my Cassandra cluster it's ...
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1answer
58 views

Yum update error on RedHat 5

since one of our guys tried installing Dell OpenManage on our RedHat server we have been getting this error when trying to update it: # yum update Loaded plugins: dellsysid, rhnplugin, security ...
3
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1answer
120 views

kong needs to start after cassandra, but cassandra is slow to actually accept connections so kong fails to start

I am setting up kong as an API gateway. It requires cassandra. I am using Centos 7, and I created systemd unit file for each with kong starting after cassandra, and requiring cassandra. Here are my ...
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1answer
232 views

How to upgrade Vim 7.2 to 7.4 latest on Red Hat 6.6 the easiest way? [duplicate]

I'm a Vim user, and usually I just install vim via a one liner "apt-get install vim", but for red hat how can I update the 7.2 version to 7.4 with a one liner? I googled it and many places tell me to ...
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1answer
152 views

RHEL6 Unable to download kickstart file

In our lab we have a set of scripts that automatically configure a kickstart installation for RHEL5 on HP ProLiant DL380p Gen8. Based on data from several configuration files, it does the following ...
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16 views

Installing a file as part of making an ISO installer

I am sure that this is answered somewhere else on this board, but I have searched high and low and have been unable to find an answer. I am building a custom ISO installer and everything is going ...
1
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1answer
27 views

Apache status connecting to wrong host

I'm trying to get the status of my Apache server with the ./apachectl status command. I get the following in stdout: Looking up 127.0.0.1:30240 Making HTTP connection to 127.0.0.1:30240 Alert!: ...
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0answers
109 views

Mounting Sharepoint folders in Linux

We are using DAVfs to load a Share Point folder in our environment. We installed both neon and davfs libraries to try mounting. On mounting, we are running into the below. Any suggestions? Could not ...
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0answers
24 views

realmd vs authconfig

What is the difference in functionality between realmd and authconfig? (using fedora 22) What is the correct way to connect to an active directory realm with using Kerberos and using SSSD server?
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2answers
91 views

Docker bash: fork: Cannot allocate memory

I am trying to create 4000+ docker containers via separate demons (To avoid the barrier of 1023 veth’s per bridge). But I am getting bash: fork: Cannot allocate memory error around 1800.I have ...
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0answers
91 views

Difficulty of EX280 - Red Hat Certificate of Expertise in Platform-as-a-Service exam

I'm searching for someone who did recently the Red Hat Certificate of Expertise in Platform-as-a-Service exam, to improve his skills to host and scale applications in a cloud environment. It's an ...
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1answer
374 views

How can I get “RHEL 7.0 vmlinux” file?

I want to use crash on RHEL 7.0. Since crash needs vmlinux file, but I can't find it on /boot folder, only vmlinuxz: ...... vmlinuz-0-rescue-7c50639231494746b5dffc0a1ff84727 ...
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0answers
33 views

Apache 404 error: Rewrite rules for Apache

Getting the following 404 not found as shown below in access.log file of httpd while trying to access the following URL:www.example.com/support . This was created using the network multisite feature ...
2
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1answer
59 views

Init scripts. Distinction of booting and starting activity

I have some script that runs and shuts down some service placed into /etc/init.d. It has symbolic link into /etc/rc5.d added with chkconfig for autolaunch on booting. Hence it starts on boot and can ...
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1answer
88 views

Creating arbitrary directory in kickstart before %post

One of the non-OS packages that I need to install via kickstart config requires a pre-existing (non-standard) directory, is there a way to create arbitrary directory before %post in kickstart? ...
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0answers
17 views

Desktop top panel displays the icon of active program with wrong label

This probably is a new feature of RHEL7. It put an icon and a label of active program on the top panel. But when running our company's application, the label is not the right name of the program. Is ...
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0answers
98 views

'yum' command fails with 'TypeError: rpmdb open failed' in Red Hat 5.2

I'm unable to run yum command on my Linux machine. I'm getting the following errors: dispsim:~$ yum Failed to set locale, defaulting to C Loading "rhnplugin" plugin Loading "security" plugin error: ...
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113 views

How to create an SELinux exception for individual files

I use a monitoring tool and on one of my systems that is checked remotely, it calls up a script, which in turn runs systemctl to check the status of a service. This was not working until I put SELinux ...
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1answer
212 views

Tomcat Homepage (localhost) doesn't showup

Assuming, I've successfully installed Apache tomcat in RHEL 7 followed almost similar instructions in here, except that I've tomcat8 user, assigned permissions and generating a keytool as ...
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2answers
173 views

Set Path for all Users (Login and Non-login Shells)

Ok. So, I'm used to Ubuntu and CentOS more than redhat, so I'm hoping there's some obvious solution to this that I'm missing. I've installed Anaconda (Python). I've placed it in: /opt/anaconda3 I ...
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29 views

Install RHEL 6 to a remote drive (NFS root)

I need to be able to install RHEL 6 to a network drive. In more modern operating systems such as RHEL 7 this is an option. Unfortunately for me I have to use RHEL 6 (actually Scientific Linux 6.6 ...
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1answer
70 views

What does Requires: Python(package) do for RHEL spec files?

I'm packaging some Python packages currently without RPMs, and some of those depend on others that I'm packaging. While packaging I noticed a format where people do: Require: python(pkg-name), but ...
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0answers
77 views

Are docker container security limits limited by the host's security limits?

Lets say that I have a host which has max locked memory set to 64kb: [root@host]# ulimit -l 64 and a docker container running in that host with no limits: [root@container]# ulimit -l ...
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941 views

Unable to start vncserver in RHEL 7

Following the instructions from Redhat documentation (TigerVNC), I've installed VNCserver in RHEL 7. When I try to start the vncserver service, it returns an error #systemctl start ...