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2
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1answer
287 views

Specify a different location to install Java - RHEL6

Is there a way to specify the location where all the installed files would go when installing Java JDK on red hat linux 6? Currently when I follow the steps mentioned in Installation Guide, it ...
0
votes
1answer
421 views

Dedicated GPU in Dell PowerEdge C1100

We recently purchased a Dell PowerEdge C1100 off lease with the initention of using it for graphics processing. We installed an AMD HD 7000 series GPU in it that runs off of board power and it sends ...
1
vote
1answer
375 views

Solaris SMF to Upstart on RHEL6

I am planning a migration from Solaris/x86 to RHEL6. Part of this migration will be migrating services from SMF to the RHEL6 equivalent, which appears to be upstart. While init.d scripts still seem to ...
6
votes
3answers
10k 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 ...
0
votes
2answers
57 views

Why are my PHP processes consuming so much CPU?

This is a system running RHEL 2.6.18-348.6.1.el5PAE #1 SMP Tue May 21 16:17:08 EDT 2013 i686 i686 i386 GNU/Linux This seems somewhat related, and I'm wondering if it has security implications: https:...
1
vote
3answers
702 views

What is the RedHat/CentOS equivalent of Ubuntu's “unstable -> testing -> stable” repo nomenclature?

I used to work in a Ubuntu environment. Machines would be pointed at one of three repos: unstable, testing, or stable. To quote the Ubuntu FAQ: The “stable” distribution contains the latest ...
1
vote
1answer
554 views

Different output by df and du [duplicate]

I have an old RHEL 5.5 Box, When I fire df -kh I see that /var is of 49 GB with 100 % usage. But then I go inside the /var cd /var and I fire du -kh I see that only total 300 MBs are used. I ...
2
votes
1answer
781 views

Working with OpenLDAP 2.4 LDIF config backend

In OpenLDAP 2.4, the configuration has been moved into an LDIF backend called cn=config. The OpenLDAP documentation says "you should never edit any of the LDIF files directly. Configuration changes ...
0
votes
1answer
668 views

Having trouble installing php_mbstring on CentOS system

So the new CentOS VPS didn't come with mbstring enabled. Easy enough, right? I typed 'yum install php-mbstring' It then says "Error: Nothing to do." The only thing I can figure is that I'm missing ...
1
vote
4answers
11k views

UNEXPECTED INCONSITENCY run fsck manually redhat

I erroneously restarted my server before completing a filesystem resize. Here's the command that ran successfully before restarting: lvresize -L -400GB /dev/mapper/vg_yavin-lv_home At boot, I get ...
3
votes
2answers
732 views

Reallocate Storage in Red Hat 6

Is it possible to (safely) reallocate storage space in /home to the root filesystem? $ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_yavin-lv_root 50G 35G ...
2
votes
3answers
2k views

What are the package dependencies for httpd? (rhel 5)

Our company uses home brewed repositories and a system to configure them, which is conveniently not working at the moment. This is causing a problem for me since I can't add repositories, and ...
0
votes
1answer
315 views

install CouchDB without a package manager

I have the ability to shell into a Linux (RHEL6) server, and manage mostly everything, but I don't have root user abilities, so I can't use YUM or any of the available package managers on the box. ...
0
votes
2answers
508 views

rm: cannot lstat `cd1/Linux/nic/UBUNTU11_64/âââ\033\nwâ·.αÃo': Input/output error

am trying to delete folder in My rhel machine , but is giving error like rm: cannot lstat `cd1/Linux/nic/UBUNTU11_64/âââ\033\nwâ·.αÃo': Input/output error folder permissions are rwx to all ...
-1
votes
1answer
55 views

“Soft” disable webmin [closed]

Can I "soft" disable webmin without breaking everything? I want to disable just the interface for webmin but not it's services and be able to enable it easily if needed. For security reasons. This is ...
10
votes
3answers
12k views

RHEL 6.4: Mode 1 channel bonding not failing over

I'm running RHEL 6.4, kernel-2.6.32-358.el6.i686, on an HP ML 350 G5 with two onboard Broadcom NetXtreme II BCM5708 1000Base-T NICs. My goal is to channel bond the two interfaces into a mode=1 ...
2
votes
4answers
15k views

how to find a not formatted hard disk on linux

My server has 2 hard disks. One very limited of around 500 GB and another NOT FORMATTED of more than 1 TB. I need to find this second disk to format it (and eventually mount it to my Red Hat 6 ...
2
votes
1answer
416 views

ext4: Online resize not detected

On a RedHat 6 server, we ran into an issue with online resizing of an ext4 filesystem. With only /dev/sda we had 13GB available in the volume group, but needed 20GB more on one logical volume which ...
2
votes
2answers
2k views

Piranha/Pulse, lvs.cf with persistence and server failure

We have the following setup: RedHat 6 LVS set up to fail between two webservers Connection persistence of 900 seconds It's a pretty simple setup however when a server is marked as failed the ...
4
votes
3answers
4k views

AUFS missing in Redhat Fedora, is there an alternative way of stacking directories?

I can't find Aufs in Redhat's Fedora, or any other stackable filesystem for that matter. It seems this is due to relabelling limitations of SELinux. Is there a way to achieve similar without ...
1
vote
1answer
126 views

Puppet changes directory ownership frequently from “users” to “users”

I see many messages in my Puppet dashboard that say a change has taken place, changing ownership of a group from "users" to "users". It seems to be related to the group 'users' existing twice, once ...
0
votes
1answer
404 views

LDAP showing too many users and groups on Linux clients

We are hosting LDAP on a Solaris server and using 150 Solaris clients and 50 Linux clients. Users and groups have a list of netgroups (server hostnames) that they are able to access. This means that a ...
12
votes
2answers
52k views

How do I authenticate with LDAP via the command line?

The LDAP server is hosted on Solaris. The client is CentOS. OpenLDAP/NSLCD/SSH authentication via LDAP work fine, but I am not able to use the ldapsearch commands to debug LDAP issues. [root@tst-01 ~]...
-4
votes
1answer
522 views

What are equivalent parameters of adduser debian command in RHEL6? [closed]

None of this options doesn't exist in RHEL6. /usr/sbin/adduser --disabled-login --gecos 'GitLab' git What is equivalent parameters for disabling account (no locking, it's different) and adding ...
-1
votes
3answers
1k views

Managing storage for Virtual Machines in Red Hat Enterprise Virtualization (RHEV)

I am using RHEV and I have created two virtual machines. These have too little disk space, how can I edit the disk space of these machines? I cannot find the option anywhere.
0
votes
1answer
413 views

persist route when gateway is from another subnet

When I want to create route when gateway is from another subnet I have to execute two commands: route add -host 10.10.100.17 eth0 for adding gateway, and: route add -net 10.210.0.0/16 gw 10....
1
vote
1answer
61 views

Long term security risks of rarely updated nginx

We've deployed a system at a university using a stack of Postgres, Nginx and Django on (mandated) RHEL. The ITS department is now pressuring us to switch to Apache on order to benefit from regular (...
1
vote
0answers
472 views

MySql/RedHat, High I/O Wait … for a few hours… then disappears

I've got a RH server as a VMWare instance logging GPS fixes 24x7. The transaction volume hasn't changed over the months (in fact I am pruning the transaction table more aggressively now) with only ...
4
votes
5answers
3k 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 ...
28
votes
1answer
24k views

Is there still a use for irqbalance on modern hardware?

This question has been asked before, but I believe that the world has changed enough for it to be asked again. Does irqbalance have any use on today’s systems where we have NUMA-capable CPUs with ...
1
vote
1answer
71 views

Install Apache from Source or from Binary?

I work on a platform which serves several different projects. For the most part, all of the projects install their web server using Red Hat's RPM. We never created a policy for this which would ...
2
votes
4answers
1k views

Bring up a virtual interface without checking if it's up elsewhere

Is there a way to bring up a virtual interface without it first sending an arping to check if that IP address is already in use elsewhere? I'm working with a proprietary product that recommends ...
2
votes
2answers
548 views

ksappend does not work in RHEL/CO 6 any more?

I am currently in the progress of migrating our kickstart-files from CentOS 5 to CentOS 6. In CentOS 5 there was a nice anaconda/kickstart-statement that allowed the inclusion of other kickstart-...
2
votes
1answer
780 views

Is it possible to resize a mounted LVM partition on the fly?

Situation: We have a server that has a 40GB SAN (Fiber Channel) mounted as /opt/application. If the LUN is expanded to 60GB, what needs to be done to expand /opt/application on the RHEL-server to ...
1
vote
1answer
2k views

How to make sure RHEL will see multipath disks after a reboot?

We are using RHEL, but unfortunately there are issues with multipathing. It seems not all SAN disks are automatically seen after a reboot. A service multipath reload is required in order for the OS ...
2
votes
2answers
3k views

“Cannot fork: retry…” error in RH5. Need info on nproc

We had a server effectively go down this morning. SSH access cut out, and at least temporarily network access went down as well. We were able to log in using out-of-band access and were presented with ...
2
votes
1answer
561 views

varnishncsa does not show any output

I have varnsih setup on my RHEL6.x. While the varnish, varnishlog and varnishstats show proper data varnisncsa does not log any data even when run without any options defined. I have lsofed all the ...
2
votes
2answers
1k views

RedHat - yum install completion

I had been using Ubuntu and recently migrated to RedHat. The apt-get install auto completion is very handy, so I supposed yum install should have this function as well, but seemed it doesn't. Is there ...
2
votes
1answer
16k 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 kill ...
1
vote
2answers
318 views

How can you prompt for the EULA in Kickstart?

I am trying to modify a Kickstart script so that it does not auto-accept the EULA (which it seems to skip right now.)
0
votes
1answer
80 views

Replacing existing SSL cert on RHEL5/Apache2.2.3

My existing SSL cert is about to expire so I need to replace it with the new one. I have been provided a .cer and .key file. How can I smoothly replace the cert with minimal downtime?
1
vote
0answers
540 views

Spacewalk/Satellite Server - spacewalk-create-channel

I have a Spacewalk installation and I have mirrored the RHEL6 base repo on my server using mrepo. I created a channel using spacewalk-create-channel --user=me --server=localhost --version=6 \ --...
-1
votes
1answer
91 views

Cron and FTP daemons crashing randomly in RHEL

Not sure where to start in troubleshooting this. I'm not finding anything indicating an issue in ProFTP logs or in /var/log/messages. So I do apologize for not having more information to give. ...
-1
votes
2answers
294 views

su command works without prompting password

I'm on a RHEL server where the su command drops the user into root without prompting for a password. Obviously, this is a pretty big cause for concern which I'd like to fix. I'm not in contact with ...
0
votes
1answer
143 views

Is there a log to see when a user is trying to access file/directory that he doesn't have permission?

My database is failing to replicate and the only clue in the error log is Operation Not Permitted, which I am guessing is file access permission failure either on donar or joiner. Is there any file ...
3
votes
1answer
477 views

Specifying which network interface to use

Assuming multiple network interfaces (eth0, eth1...), how can I specify which one I would like to use?: Can I specify per-application which network interface should be used? Can I specify system-...
0
votes
1answer
5k views

Samba authentication of user with wbinfo -a

i setup a RedHat server with samba/kerberos/winbind. I can retrieve my user and groups with wbinfo -u and wbinfo -g. BUT in the listings, the name appears like that : wbinfo -u DOMAIN+username1 ...
-1
votes
2answers
71 views

Which python to use on Enterprise Linux? [closed]

I'm currently learning python and I recently bought a book that goes through Python 3. Where I work we use Red Hat Enterprise Linux, and I've noticed that on RHEL 5 and RHEL 6 the versions of python ...
2
votes
2answers
2k views

Checking yum connectivity from a script?

When there is a problem with access to yum repos (for example if a needed proxy isn't configured), running a command like 'yum update' will wait for a very long time trying lots of different mirrors. ...
0
votes
1answer
68 views

yum update if installed, otherwise install

Is there a command to do just that: if a package is already installed, update it, otherwise install the latest version For now I'm doing two commands: yum install mypackage yum update mypackage ...