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Questions tagged [redhat]

Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite. Please also consider whether or not the more specific RHEL5 or 6 tags might be appropriate as well.

Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite.

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Openstack/PackStack basic multi-node network setup

Background After having installed OpenStack with PackStack we are left with a problem with the networking. We wanted a super-simple network with one subnet where all the virtual machines should reside, as this looked like the simplest solution. We…
larhauga
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How do you upgrade puppet on Apache / passenger on EL6.4?

I have a Scientific Linux 6.4 server running apache / passenger with puppet-server installed. Also installed is Foreman 1.4. When I upgraded my agents to 3.4.2, they started all logging: Using less secure serialization of reports and query…
jmp242
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Editing fstab for a new drive that will contain subdirectories on other disks

Currently the disks on my box look like this: Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 30G 28G 174M 100% / /dev/mapper/VolGroup00-LogVol02 4.7T 3.0T …
에이바
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Red hat reporting more NICs than are physically present

We just deployed several servers (hp dl360p g8), and after the initial boot we're noticing that none of the network devices are showing up as cabled. Ethtool shows no link anywhere. Even more weird is that we are seeing 8 NICs; the server only has 4…
Matthew
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KVM Network configuration + VLAN trunck

I am trying to set up a KVM Based solution, I am having trouble configuring the NICs for the VMs from a bridge based on a VLAN interface. My config below : ETH0 : KVM Host Management : 192.168.126.27 Netmask /25 - 255.255.255.128 Gateway –…
L1opardo
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Convert user crons to system cron

I want to centralize a lot of crons to /etc/crontab. Now every user gots it own crons in /var/spool/cron, which is not maintaineble for me. I want to do this automated via a script, but the problem is that the cron syntax differs. In /etc/crontab an…
Tom_13
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How do ProFTPD/centOS handle directory permissions for virtual ftp users?

On proftpd/centos I configure the use of virtual user. I can login as a virtual user but I do not have write permission for this users. The proftpd.conf looks like: ServerName "ftp01" DefaultServer …
kockiren
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Red Hat Virtualization, slow DB writes or network from virtual machine

I am running JBoss on both a physical machine, and a VM that runs within that same physical machine. The JBoss instance on physical machine is operating fast, but the JBoss on VM is slow (several orders of magniture). It appears that the following…
user1340582
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Shutdown error on CentOS 6.5

On a KVM host, after gracefully shutting down the guest KVM, I get: [root@kvm]# /sbin/shutdown -h now Broadcast message from vmadmin@kvm.mattermedia.com (/dev/pts/1) at 15:23 ... The system is going down for halt NOW! **shutdown: Method…
Gaia
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What are the most optimal permissions for /bin/su?

I want users to be able to use "sudo su -", but not to switch user by password. What are the most optimal permissions for /bin/su? Right now it's: -rwsr-xr-x. 1 root root 42436 Jul 26 18:19 /bin/su I was thinking about changing this to 700, is this…
ujjain
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Backup RHEL 5 Web Server Disk and DB Data to USB Drive, Best Way to do this?

We are using a dedicated web server with Redhat Enterprise Linux 5 installed, we are using this to host a couple of our websites. We asked our host to attach an external USB hard drive to our server so we could make a backup copy of our current…
officeboi101
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OEL fresh install while keeping old LogVols

I've been asked to install OEL 5.x on a server and setup a disk with a few directories (there's only one disk in the server). So I have an OEL 5.x server wtih multiple log volumes in a volume group: /dev/VolGroup00/LogVol00 / …
에이바
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Can connect to LDAP server, but cannot bind: OpenLdap error message: Can't contact LDAP server

We have a PHP application deployed on a RHEL6 machine that relies on some ldap calls to function. In particular, ldap_connect and ldap_bind are used to verify users and also to look up their details. This mechanism works just fine on our…
Fer
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How to set up a pacemaker cluster for active/active scenario and how it works?

I try to set up my first pacemaker cluster as a FTP Server. There are two Server installed with a fresh centos 6.5 and proftpd First step was to install pacemaker and some configuration Tools with: yum install pacemaker cman pcs ccs…
kockiren
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Why does wget from ftp-sites sometimes create a few empty files when it downloads the rest of the files without problems?

I have downloaded 80.000+ image files stored on a FTP-site using wget(1) and most of the files where downloaded without problems but when I did a small check (using file(1)) I just realized that a few of the files were empty!?! I just used this…
Andrew Rump
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