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311 views

Clone a Red Hat RAID as part of a disaster recovery plan

I am looking for recommendations to clone a Red Hat mirrored raid to a single hard drive located in the same machine. The idea is if the servers hardware ever has an issue we have a similar hardware ...
1
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3answers
1k views

Apache sudoers access

I am making a system call from php which is `sudo /usr/bin/perl -pi -e 's/foo/bar/g' /tmp/newxml.xml`; which works fine in php cli. But would not work in php via browser, because apache does not ...
4
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2answers
672 views

Is It Possible to set cpu affinity for particular user?

I mean is their any way we can set up cpu affinity for particular user, for all his currently running process or for process which he will start later?
2
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1answer
712 views

NFS mount mounted inside another NFS mount disappears randomly

I have quite an odd issue where my nested NFS mounts just disappear randomly from time to time. The fstab entries look somewhat like this: nfs:/home /home nfs ...
-1
votes
2answers
88 views

Server Free Memory [duplicate]

Possible Duplicate: Free / Cached / Available memory on Linux My Redhat server shows the following: free -m ============= total used free shared buffers ...
1
vote
1answer
35 views

Mongo is not account specific

I have mongo running on my system however I can access all my databases/collections from other peoples accounts. Can I secure specific collections? How do I block access to my collections but not cut ...
1
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0answers
328 views

USER_LOGIN audit log with incorrect auid value?

We have a CentOS 6.2 x86_64 system that's logging what looks to be erroneous audit information. We were receiving alerts for failed logins by a user who wasn't actually trying to log in. After some ...
4
votes
2answers
802 views

Heartbeat/DRBD failover didn't work as expected. How do I make the failover more robust?

I had a scenario where a DRBD-heartbeat set up had a failed node but did not failover. What happened was the primary node had locked up, but didn't go down directly (it was inaccessible via ssh or ...
0
votes
4answers
2k views

What are the ways to build a failover cluster?

I have a task where I need to build a failover cluster in two cases: first with servers on Red Hat Enterprise 5.1 and second with SUSE Linux Enterprise 11 SP1. Both cases have SAN. I know there are ...
2
votes
1answer
2k views

GVFS Locations Not Available In ~/.gvfs

So, I can mount GVFS locations correctly (specifically CIFS) either from the Gnome "Places" menu, or via the command line gvfs-mount, but the filesystem is not mounted in the expected location; ...
3
votes
2answers
7k views

Clone kvm/qemu VM to a different server

What's the easiest/quickest way to clone a VM from one server onto another if you don't have shared storage between the two servers (so you can't do a standard migration)? I have a production ready ...
4
votes
1answer
1k views

Credentials can not be delegated - Alfresco Share

I've hit a brick wall configuring Alfresco 4.0.d on Redhat 6. I'm using Kerberos authentication, it seems to be working normally, and single sign on is working on the main alfresco app itself. I've ...
1
vote
1answer
530 views

“Attach to native process failed” with Apache 2.0 Agent 2.202 for RHEL5 Linux 64bit

In trying to install Apache 2.0 Agent 2.202 for RHEL5 Linux 64bit, the dialogue appears as follows. # export JAVAHOME=/usr/java/jdk1.6.0_24/; echo $JAVAHOME /usr/java/jdk1.6.0_24/ # ./setup ...
1
vote
2answers
5k views

Why am I getting “Input/output error during read on /dev/sda” during a CentOS text-mode installation?

I'm trying to install CentOS 5.7 on an HP Proliant DL380 G5 (with an HP P400 Smart Array RAID controller) and am getting the following error during the text mode installer: ERROR: pdc: reading ...
4
votes
1answer
147 views

NIC reporting as devXXXX and not ethX

We recently noticed our 10gE NIC was reporting as devXXXXX. Does anyone know why this would be given this name as opposed to ethX? Our System: The issue occurred on two separate servers. We are ...
2
votes
2answers
52 views

https traffic being routed to port 21

I manage a server at a hosting company. apache is setup to listen on port 80 and 443. http (port 80) traffic works fine. I can also ftp and telnet fine using port 22. Issue - when I try to connect ...
2
votes
1answer
1k views

Bind9 forwarding zone not working

i've setup a forwarding zone on a RHEL6 Bind server like this: zone "office.local" IN { type forward; forward only; forwarders { 192.168.0.2; 192.168.0.3; }; }; when i try ...
2
votes
1answer
1k views

Blank black screen with cursor after login — RHEL5

I have a RHEL 5 machine here which is a Dell Precision T3500. I'm an Ubuntu guy, but I'm having a heck of a time with this machine. After processing its first security update, we cannot log in via ...
1
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4answers
5k views

yum not working on EC2 Red Hat instance: Cannot retrieve repository metadata

For some reason yum has stopped working in my Amazon EC2 instance, located in the EU West sector. There seems to be something wrong with the path of the repo metadata, is this correct? I would be very ...
-1
votes
1answer
125 views

Root user is not able to paste files into nonroot user's home directoy

Hello Friends, I am using rhel 5.3. First of all I want to discuss what I did earlier. I was using this system(200.0.0.15) as NIS Client. So I had started autofs service and had shared ...
13
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5answers
18k views

How to update cURL CA bundle on RedHat?

I am running into issues where the CA bundle that has been bundled with my version of cURL is outdated. curl: (60) SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL ...
3
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1answer
1k views

how to lock linux user account after certain unsuccessful attempts

How to lock user account on Red Hat Enterprise Linux Server release 5.7 after certain no of unsuccessful attempts
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1answer
366 views

Difference between yum update and using rpm to install updates

I am trying to figure out why exactly this isn't working correctly. Currently there is no way supported by yum to set a milestone in time (install all packages up to point in time T). To get around ...
12
votes
3answers
1k views

on Red Hat Enterprise and CentOS, what is creating /var/run/reboot-required?

On CentOS 5.8+ and Red Hat Enterprise 6+, when installing/updating packages, I notice a flag file /var/run/reboot-required is created when appropriate. On Ubuntu (and Debian too, I'm guessing), if ...
1
vote
1answer
103 views

Feisty network mount refuses to umount

I have a particular network share that's giving me grief. Basically, we had two NAS devices which had to be moved to another building. I updated /etc/fstab to the new IP addresses and tried to remount ...
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votes
3answers
400 views

Unable to connect using SSH keys

I am trying to connect to my linux server using the following: ssh-keygen -t rsa I then do: cat ~/.ssh/id_rsa.pub | ssh myusername@myserver_ip 'cat >> .ssh/authorized_keys' I then go to my ...
1
vote
2answers
2k views

Does `mkisofs` modify the boot image and/or boot catalog?

I've been playing around with Kickstart on RHEL 6.2, and that involves re-mastering the install ISO. I've noticed something strange, though. If I issue the following command once (where diskFiles is ...
3
votes
3answers
10k views

Exclude a specific repo from YUM Update

I am doing a system wide yum update on RHEL 5.5 and the IUS EPEL repository is throwing a missing dependency error: php53-mcrypt-5.3.3-4.ius.el5.x86_64 from installed has depsolving problems --> ...
0
votes
2answers
141 views

What is the best and simplest option to setup a Linux VIP [closed]

I just wondered if anyone could suggest some software and maybe provide example of how to setup a VIP between two servers? Basically the problem is i want to setup two access servers with a VIP so ...
-1
votes
1answer
626 views

Error on installing Curl in Red Hat

Got this error when i installed curl in my Red Hat Enterprise Linux Server ../lib/.libs/libcurl.so: undefined reference to `ERR_remove_thread_state' collect2: ld returned 1 exit status make[2]: ...
2
votes
5answers
617 views

Sabotaging an apache server

Bit of an odd one this. We have a very political management situation brewing and as the developer looking after the interaction with the hosting company, I have been asked to perform a bit of ...
1
vote
0answers
801 views

Fence device for RHEL cluster node on vmware workstation

I have a host with Windows 7. I installed VMware Workstation where I have installed two virtual machines. Each virtual machine is a rhel 6.2 node running clustersuite. Do you know which fence device ...
2
votes
1answer
299 views

How to install dev packages on a Red Hat server that is not connected to internet?

I'm a programmer and my Linux knowledge is poor. I have to install rrdtools on a server, and i get some warnings about missing libraries. The server has been set up so that whenever I connect to it ...
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: ...
2
votes
1answer
98 views

enable DNSSEC on workstation

our office servers offer DNSSEC. I've tested this with dig. how can i use DNSSEC with my RHEL6 workstation? (there is no bind on it...) is it possible to add trusted keys to the workstation (i.e. in ...
4
votes
1answer
2k views

Best Practices for rotating syslog logs on RHEL with different schedules?

OS: Running RHEL 5.6. Situation: I need to rotate /var/log/messagees on a different schedule than the rest of the syslog logs. By default syslog logs are rotated weekly based on the ...
2
votes
1answer
665 views

How to turn off SSL certificate verification for RedHat Kickstartfile downloading

I'm using Foreman for RedHat 6.0 booting over ipxe (but that shouldn't matter ;) The kernel parameters used for booting are: kernel http://192.168.1.5/dist/rhel/6.0/os/x86_64/images/pxeboot/vmlinuz ...
1
vote
0answers
93 views

Coldfusion installer succeeds, but with no /bin/ directory

I've just tried reinstalling a CF9 server, but the installer finishes with "11 NonFatalErrors", and there is no /cf-root/bin directory. This means I can't run /cf-root/bin/coldfusion start so I can't ...
1
vote
1answer
132 views

vfw.h no longer present on RHEL 4.8? [closed]

I maintain an application which relies on vfw. Unfortunately, I am not able to remove this deprecated video encoding mechanism at this time. My application compiles fine on Windows, but on RHEL 4.8 it ...
2
votes
1answer
13k views

centos/redhat: change open files ulimit without reboot?

The hard limit of the number of open files is set to 1024 on my machine. I changed /etc/security/limits.conf and added 'idror hard nofile 65000'. In my shell I tried ulimit -n 65000. I get ...
2
votes
1answer
1k views

Building Python 3.2.3 on redhat 5: missing _posixsubprocess

I am trying to build Python3 on a RHEL 5.7 machine, I successful managed to build Python 3.2.2, with : # Install required build dependencies yum install openssl-devel bzip2-devel expat-devel ...
0
votes
1answer
107 views

ngnix on amazon ec2 instance which has RedHat 4.4.4-13?

I have an ec2 instance running on amazon which has AMI(ami-1b814f72).Its running RedHat 4.4.4-13 version. I want to install ngnix and gunicorn on with django. According to ngnix ...
1
vote
0answers
341 views

WERR_ACCESS_DENIED - While rebooting Windows with Linux over LAN

We recently lost one of our Windows 2K8 servers while switching from Static to DHCP after a DHCP release command was inadvertently called. The server was still active but we were no longer aware of ...
6
votes
2answers
5k views

“open files” ulimit: controlling via limits.conf

I'm banging my head on this, and I can't understand why it's not working. I'm hoping that someone can shed light on this, or failing that, give me some suggestions for avenues of investigation. I've ...
0
votes
1answer
249 views

RedHat RHEL5.3 update DNS entry point of Windows 2003 domain on Debian style

I'm back today, because I can't do a trick that is simple to do on Debian. Indeed, I'm using a RHEL 5.3 server as a DHCP client on Windows Domain. To be able to correctly reach it form my windows ...
0
votes
1answer
1k views

RHEL/Apache - meaning of WCHAN=“semtim”

What is the meaning of WCHAN="semtim"? ps -ylC httpd S UID PID PPID C PRI NI RSS SZ WCHAN TTY TIME CMD S 0 25330 1 0 78 0 16168 170563 - ? 00:00:14 httpd R ...
8
votes
1answer
1k views

Deploy internal CA to linux clients

I have a large number of workstations that run RedHat Enterprise Linux 5 and 6. I'd like to deploy our new internal CA (Active Directory) to these machines. I can manually import the certificate ...
5
votes
3answers
11k views

What is the difference between RHEV and oVirt?

When I read the wikipedia articles about RHEV and oVirt, I can't really figure out why Red Hat have both projects, as they seam to solve the same problem? http://en.wikipedia.org/wiki/RHEV ...
0
votes
1answer
338 views

what is the difference between Redhat Virtual Storage Appliance and GlusterFS?

GlusterFS still offers the open source software. But since Redhat has re-branded GlusterFS as Redhat Virtual Storage Appliance, I am confused about what will be good for production environment. Is ...
-2
votes
2answers
335 views

How do I change the year in Unix?

I've looked at the man page for "date" and I can't figure out how to change the year. I know there is some string you need to create to describe the date format but how do I use that?