Red Hat Enterprise Linux version 6 is a Linux distribution sold by Red Hat, Inc. for the enterprise market. It is used for both servers and desktops. Although the binaries are not freely available, the sources are, and so there are numerous projects which provide compatible rebuilds of RHEL, such as ...

learn more… | top users | synonyms

0
votes
0answers
12 views

Log/Audit everything allowed by SELinux

I'm profiling some proprietary software to construct a set of permission requirements and SELinux policies to allow it to install and run on Oracle Linux (or any RHEL derivative). I'm running SELinux ...
0
votes
1answer
833 views

JBoss EAP 6.2 on RHEL 6: ./bin/init.d/jboss-as-standalone.sh hangs while calling via SSH

I'm using jboss-as-standalone.sh to manage JBoss EAP standalone as a service. I can start/stop the service with "service jboss-as-standalone.sh start/stop" while I'm on a terminal. But I would like ...
0
votes
0answers
21 views

AWS Linux RHEL instance unable to format and load new storage partition

I have an AWS RHEL instance. Following are the storage devices on it: $lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 20G 0 disk xvda1 202:1 0 6G 0 part / I ...
0
votes
1answer
3k views

RHEL hangs after starting virt-who succesfully

Idea #1: Is there a way to REPAIR an RHEL 6.2 installation? During the start-up procedure, after a recent forced reboot, my Linux machine (RHEL 6.2) hangs right after successfully starting ...
0
votes
0answers
16 views

Apache doesnt start after mod_wsgi re compile

I recently had to rebuild python and mod_wsgi in order to get a django site working. The problem is now apache doesnt start. I'm running RHEL6, and Apache 2.2 This guide is what I followed ...
0
votes
1answer
954 views

RHEL 6.6: [Errno 14] PYCURL ERROR 22 - “The requested URL returned error: 403 Forbidden”

First of all, it's the first time I setup RHEL machines, I'm more used to Debian. We're installing many machine at the same time. We've upgraded from RHEL 6.3 to RHEL 6.6 and we're now trying to ...
3
votes
1answer
39 views

Cron job as root need to sudo to another user [duplicate]

RHEL6 In root's crontab a have: * 21 * * * /root/script.sh In script.sh there is a line: /usr/bin/sudo -u jira bash -c 'cd /opt/jira/bin; ./stop-jira.sh' && echo "Jira Shut Down" >> ...
0
votes
0answers
16 views

What causes ntpq refid CRYP when authentication is successful?

I have five servers that I'm configuring for production use based on a configuration we've recently tested. The servers are RHEL6 with NTP version 4.2.4p8@1.1612-o. Right now, though, I'm trying to ...
0
votes
1answer
100 views

How do I get the system-serial-number for Xen Server?

I would like to find out how could I be able to retrieve the system-serial-number of virtual machines installed on Citrix XenServer. I had referred to ...
2
votes
3answers
3k views

Nagios NRPE: Command “my_command” not defined

I have installed Nagios® Core™ 3.5.1 and NRPE v2.14 on my client which running RHEL 6.3 I have this error message on my Nagios NRPE: Command 'check_mysql_connections' not defined On my nrpe.cfg I ...
3
votes
2answers
1k views

Why is Linux kdump not writing to /var/crash?

It's happened again! I have 4 servers which are crashing periodically, and there is no information printed to the system logs or the serial console. In addition, the Linux kdump service isn't writing ...
6
votes
2answers
11k views

Account Lockout with pam_tally2 in RHEL6

I am using pam_tally2 to lockout accounts after 3 failed logins per policy, however, the connecting user does not receive the error indicating pam_tally2's action. (Via SSH.) I expect to see on the ...
0
votes
1answer
21 views

RHEL6 autofs maps with subdirectories and LDAP

All the documentation I see shows, even for file based, mounts that will show up on the client computer like /test/mymount and you can have as many /test/mymount2 /test/mymountN as you want. What I ...
0
votes
1answer
889 views

Moving from nslcd to sssd on Red Hat to solve NSS MD5 issue

I have a problem with the latest version of Red Hat, nss/nscd does not accept MD5 certificates. Because of recommendations I am replacing nscd with sssd with this howto ...
1
vote
1answer
573 views

Rsyslog unix timestamps on RHEL6

I'm trying to get rsyslog on RHEL 6 to render the time the message was logged at as a unix timestamp. I started by read the documentation at http://www.rsyslog.com/doc/property_replacer.html. Since ...
0
votes
1answer
7k views

What is the difference between init 6 and reboot on Red Hat / RHEL / CentOS?

In Linux, the init 6 command gracefully reboots the system running all the K* shutdown scripts first, before rebooting. The reboot command does a very quick reboot. It doesn’t execute any ...
2
votes
1answer
1k views

Account Lockout with pam_faillock in RHEL6

Previously, I asked about using pam_tally2 under RHEL6. I would like to pose this question and answer to document the recommended use of pam_faillock over pam_tally2 for the same function; What is ...
0
votes
0answers
28 views

Local MySQL connection using eth0 rather than lo loopback

We've installed MySQL 5.6.22 on RHEL6.6 and noticed terrible performance compared to a previous install on RHEL6.5 and MySQL 5.6.20 The main thing that we've noticed is that all the traffic appears ...
3
votes
2answers
224 views

Ansible Fails to Authenticate Sudo Even When Sudo Pass is Given

Problem Using the latest, stable Ansible build, I have an odd problem where my playbook hangs on one server during "Gathering_Facts" but works fine on other similar servers when using Sudo. On the ...
0
votes
2answers
1k views

SSH hangs after authentication

When logging in to one of my servers over ssh, it just hangs after authentication. This is the output on the client with -v. OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading ...
0
votes
0answers
78 views

Installing cloud foundry on RHEL 6

I am trying to install Cloud Foundry on RHEL 6 VM on our corporate network. All documentation, I have seen is on installing on AWS or vSphere. Is it possible to to install it on a single RHEL 6 VM or ...
2
votes
2answers
59 views

How to estimate potential power savings

If I have some servers set to static high performance mode, is there a way to generate a report on what power savings mode would have done, if it were enabled? I am looking to generate reports of the ...
0
votes
2answers
552 views

Yum installation fails with RHEL 6.5

I am trying to install shibboleth SP package using YUM installation (Yum install shibboleth). I am getting the following error while installing. Downloading Packages: ...
0
votes
0answers
67 views

INFO : task events/2:69 blocked for more than 120 seconds

I'm using RHEL 6.3 running on VMWare vsphere and aproximatively every month there is this error message and application running above hang until I restart the server: "echo 0 > ...
1
vote
1answer
59 views

How to customize the default set of apps launched with gnome desktop on CentOS 6.*

Background We run a series of CentOS 6.5 servers which each host multiple users (~100s) coming in via X-Window XDMP from their MS Windows desktops. These users don't need the host of default ...
0
votes
0answers
69 views

Utility to list and modify kernel modules loaded during system startup

How do I list all kernel modules loaded while system startup? Is there a user space utility to list and modify the modules loaded during system startup? I am working on RHEL6 Desktop and RHEL6 ...
0
votes
2answers
188 views

RHEL 6 Having issues forwarding port 80 to port 8080

I am trying to set up a JBoss app server on an RHEL build. Jboss is bound to 127.0.0.1:8080, and I am trying to setup iptables to redirect all traffic from port 80 to port 8080. This is my config ...
0
votes
2answers
76 views

Running 'show process list' simultaneously

I have two scripts put into a cron that runs every single minute. Both the scripts connect to the same database and runs a show full processlist. Is it okay if two show full processlist commands are ...
0
votes
2answers
105 views

RHEL 6.6: redis-package for php54

Redhat Enterprise Linux Server 6 contains php54 packages, in addition to the normal php packages that ship version 5.3. Unfortunately for me, a php-redis package exists, but no php54-redis package. ...
6
votes
2answers
3k views

Php pdo_dblib - cannot find/unable to load freetds

Self-hosted box, RHEL 6 PHP 5.3.3 PDO installed freetds installed pdo_dblib - so far no luck installing My goal is to use PDO with sybase. Attempting to install pdo_dblib from the appropriate ...
4
votes
3answers
8k views

What is the relation between NetworkManager and network service in Fedora/RHEL/Centos?

Hi I am new to Fedora/Centos/RHEL. I am confused about NetworkManager and network service in these Linux OS. May I know what is the relation between NetworkManager and network service? If I am using ...
1
vote
1answer
466 views

Foreman-Installer change certificate

Looking to install Foreman for a puppet deployment in my environment. I ran foreman-installer with defaults at first and didn't care for the SSL certificates and URLs being server01.example.com I ...
3
votes
4answers
5k views

RHEL 6.x - yum gives “ImportError: No module named cElementTree” errors

I'm making a set of changes to a group of 150 servers. All systems were able to successfully download and install a specific set of RPM's via yum, except for one. One this particular system, all yum ...
1
vote
2answers
3k views

Red Hat Kickstart: How do I get a DVD-ROM based install to work?

I'm trying to create a "Magic DVD" that will install and configure RHEL 6.2 just the way we want it the first time, every time. Here's the process I've been trying to use, just to prove the concept: ...
4
votes
1answer
117 views

Practical ulimits

One of the projects I'm working on is moving certain puppet-applied ulimit settings away from "that sounds about right" to dynamically allocated based on the environment. This is for ...
0
votes
1answer
72 views

rcp files from windows 2008 server to linux box? (Running rcp on linux)

I am trying to run rcp command on rhel6 server to copy over files from a windows 2008 server but see this error message. /usr/bin/rcp administrator@10.225.185.112:"C:\nfsqa-rhel62-vm01.root.keytab" ...
0
votes
1answer
798 views

Unable to load dynamic library '/usr/lib64/php/modules/ssh2.so'

When I try to run any php script with my user within shell, I get the following warning: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/ssh2.so' - ...
2
votes
1answer
5k views

How to install java-1.7.0-openjdk-devel on RHEL Server 6.3?

I have need of installing a Java 7 development environment on a RHEL 6.3 (system details are below). Following the official OpenJDK directions I tried yum install java-1.7.0-openjdk-devel (as root). ...
3
votes
2answers
830 views

How to detect if mount point exists from init.d script?

After a reboot, I'm executing an application from a mounted network share (autofs) using an init.d script. The script starts by waiting 30 seconds before attempting to execute the command, in order to ...
0
votes
0answers
51 views

Automatically configure networking on new VM in XenServer

We have a base RHEL 6.5 64-bit template that we use to create new VMs in XenServer. Every time we make one, we have to configure: /etc/hosts /etc/sysconfig/network ...
0
votes
1answer
3k views

ptp time synchronization on centos6/rhel

I need to setup time synchronization using PTP (precision time protocol). I'll get server address. I found ptpd server (version 2.1). I created startup files in /etc/init.d. But wondering what options ...
0
votes
1answer
82 views

No package php5-intl available RHEL

I'm trying to install php5-intl on Red Hat but cannot seem to find the package. I run yum install php5-install and get the error No package php5-intl available. Is there a different repository I need? ...
2
votes
5answers
2k views

Server freezes while installing Redhat Enterprise Linux Server 6

We've tried both the first options Install or upgrade an existing system Install system with basic video driver When trying option #1, it gets to a screen that has a solid cursor about halfway ...
4
votes
3answers
4k views

Understanding RedHat's recommended tuned profiles

We are going to roll out tuned (and numad) on ~1000 servers, the majority of them being VMware servers either on NetApp or 3Par storage. According to RedHats documentation we should choose the ...
3
votes
2answers
3k views

Generating an SHA256 SSL CSR on CentOS/RHEL using genkey

The officially recommended method of generating a web server SSL certificate CSR (according to RHEL6 and CentOS 6 documentation) is to use the genkey utility. When used according to the docs, this ...
2
votes
3answers
8k views

Human readable format for http headers with tcpdump

I would like to view the HTTP headers sent from Apache (listening on port 80) to Tomcat (on port 4080) in a Linux machine. According to Wikipedia, Header fields are colon-separated name-value ...
0
votes
1answer
295 views

make PHP curl use openssl instead of NSS

Does anyone know how could I force php to use curl with openssl instead of NSS on RHEL 6? I've installed curl-openssl-7.30.0-1.1.el6.x86_64.rpm but how can I tell php to use it? Actually is there a ...
1
vote
2answers
245 views

Is PHP 5.3.3 on RHEL 6.5 receiving security fixes?

I notice that the latest PHP available on RHEL 6.5 is PHP 5.3.3. See Distrowatch and also my own check: $ php -v PHP 5.3.3 (cli) (built: Jul 15 2014 08:48:08) However, the PHP website claims that ...
2
votes
1answer
81 views

Puppet's issue: Configure WAN interface, reload network in the process result in broken agent's run

A little background: I want to use puppet to fully configure RHEL6 servers freshly after they have been installed with kickstart, the kickstart itself is fully automatic and provide dhcp-enabled ...
1
vote
0answers
1k views

Mount updates /proc/mount but not /etc/mtab, making partition not show up in df, mount listing

I'm on RHEL 6. I created some partitions using parted, formatted them using mke2fs, and mounted them using mount. I also added them to /etc/fstab. However, they do not show up in the mount or df ...