Red Hat Enterprise Linux version 5 is a Linux distribution sold by Red Hat, Inc. for the enterprise market.
0
votes
1answer
241 views
LVM cannot detect my swap or '/' volume group but why is the swap still present
i have a server (hp x86 blade running OEL/RHEL5) that has a faulty lvm filter configured in lvm.conf
filter = ["a|^/dev/emcpower.*|", "r/.*/"]
we also use cciss devices so there should have been an ...
2
votes
1answer
484 views
why does my lvm2 volume group only work with multipath device mapper and not powerpath
my server is Oracle Enterprise Linux 5.4 (RHEL5) on an hp blade (x64) with qlogic HBAs connected to an EMC clariion SAN.
we are migrating from multipath to powerpath because emc and the company ...
5
votes
1answer
279 views
mount using insecure ports for nfs
Title says it. mount is occasionally making NFS mount/unmount requests from insecure ports. I believe the issue is being caused by all of the secure ports being stuck in TIME_WAIT after periods of ...
1
vote
0answers
278 views
Apache randomly fails to restart (port 80 in use) .. Probably cron related?
So this started happening for no apparent reason on a RHEL5 server running Plesk 10. I woke up one morning to find all the sites hosted on this box were offline. I SSH'd in and restarted httpd -
...
2
votes
1answer
423 views
How can I configure permanent arp entries on Red Hat Enterprise Linux?
I'm configuring a Red Hat Linux server which will be sending UDP packets out but never receiving ARP responses. So a static ARP entry is required.
The obvious way to do this is.
arp -s 10.0.0.1 ...
1
vote
1answer
272 views
Connection to mysql server in SYN_SENT
We are facing a strange problem from last few days between our application server and database server(Mysql): connection to database server from application server hangs in SYN_SENT state and after ...
0
votes
2answers
2k views
RHEL server Yum dependencies not working
I have a redhat server that isnt resolving dependencies correctly.
I want to install httpd via yum "yum install httpd" and it installs correctly, but when i go to start httpd I get the following ...
1
vote
0answers
489 views
Same nfs mount options, different output
I have 2 OEL5.5(RHEL5.5) servers.
I'm trying to figure out why when I run mount command I get different outputs.
Server1 has the following line in /etc/fstab/
10.11.0.61:/vol/exports/ /exports ...
0
votes
0answers
182 views
nginx crashes on start
When i start nginx it just doesn`t start correctly.
[root@xx]# /sbin/service nginx start
Starting nginx: [ OK ]
[root@xx]# /sbin/service nginx status
...
2
votes
1answer
359 views
linux multipath - change device alias safely
I'm running RHEL 5.2 connected to a NetApp over FC. The server is running a database on mpathNN devices that can not be stopped. I need to add a new LUN and give it a specific alias (rather than ...
2
votes
1answer
372 views
Autofs BROWSE Mode in CentOS\RHEL
I have multiple server mounting their $HOME from a file server.
On the clients I have set in /etc/sysconfig/autofs
BROWSE_MODE="no"
The client also mount directories from other files servers to ...
0
votes
2answers
3k views
Restarting the httpd service in RHEL returns “Stopping httpd: [FAILED]” - How do I fix this?
This is my first indication of an issue:
$ sudo /sbin/service httpd restart
Stopping httpd: [FAILED]
Starting httpd: no listening sockets available, ...
0
votes
0answers
215 views
svn: Too many arguments to import command
Having a problem with the --message flag to the svn import command. On some servers it works, but on others it gets confused if the message contains spaces, even if you single or double quote the ...
1
vote
1answer
48 views
Importing binary applications
I have a server that has no dev tools on it (e.g. no gcc).
In addition the server has no direct link to the outside world (e.g. no apt-get).
The above could not be changed - as an organizational ...
1
vote
0answers
386 views
Anyone know how to fix issues with omsa on red hat 5.1 that reports “No Controllers found”?
I've got a Red Hat 5.1 server 64-bit Dell 2950 with a perc5/i controller that until recently was working fine.
On it I have an NRPE command check_openmange that started returning errors:
...
0
votes
1answer
434 views
NFS mount drops to read-only during intermittent network failure
I have an NFS mount (say to /opt/foo) on a RHEL5 install that occasionally drops to a read-only filesystem after a short network failure...I have control over this box but not over the network, so I ...
2
votes
8answers
1k views
cpu utilization over 100% in linux system
In one of our production Linux servers, CPU utilization is crossing 100 % and sometimes it is 250%.
How can I find which process is using more CPU utilization and where can I find CPU utilization ...
2
votes
2answers
352 views
Unable to start SNMP in RHEL5 64-bit
merry christmas!
I have installed net-snmp, net-snmp-utils and net-snmp-devel in my 64-bit Centos5 using yum.
The following are the packages I've installed:
net-snmp-devel-5.3.2.2-14.el5_7.1
...
0
votes
1answer
833 views
Is it possible to just update Java through YUM on a licensed RHEL5?
RHEL 5.6 64 bit running:
Java(TM) SE Runtime Environment (build 1.6.0_27-b07)
Java HotSpot(TM) 64-Bit Server VM (build 20.2-b06, mixed mode)
Can I update this with the latest build 29 using yum?
...
1
vote
1answer
244 views
How to diagnose storage system scaling problems?
We are currently testing the maximum sequential read throughput of a storage system
(48 disks total behind two HP P2000 arrays) connected to HP DL580 G7 running RHEL 5 with 128 GB of memory.
Initial ...
2
votes
2answers
218 views
Should swap space be in a logical volume, or directly on disk?
What are the benefits of putting swap into a logical volume over using direct disk access?
For example, with a fresh, default install of RHEL5 or 6, a volume group is created on the default disk ...
0
votes
2answers
2k views
MultiPath configuration on RHEL5 and Clariion CX-300
I have problem with discovering my FC-connected CX-300 storage. Frankly speaking I'm complete novice in FibreChannel, so step by step explanation would be appreciated. My configuration consist of two ...
1
vote
1answer
160 views
Strange files in /tmp/
I have never seen this files in RedHat before.
/tmp/orbit-root
/tmp/ssh-KEskO14981/agent.14981
/tmp/keyring-OuVrZn/sock
What could it be?
0
votes
2answers
356 views
hostid command not returning consistent hostid on RHEL 5.6 server
We have two newly built RHEL 5.6 x86_64 servers which are part of an Oracle Database Cluster. One is named CMORAC1 and the other CMORAC2. The primary IP Addresses of both servers are 10.100.9.144 and ...
0
votes
2answers
1k views
Redirecting Syslog events from RHEL 6 to RHEL 5: is it possible to provide with the same event format?
For some reasons, we redirect syslog events from RHEL 6 (with rsyslog) to RHEL 5 (with syslogd).
On RHEL 6 in rsyslog.conf:
*.* @10.30.46.211
On RHEL 5 in /etc/sysconfig/syslog:
...
0
votes
2answers
444 views
After applying patches and rebooting, RHEL 5.3 hangs on udev
I suspect that one of the packages in the last system updated is causing problems with the system rebooting. When I reboot, the server hangs on udev.
Here are a list of the updates that preceeded ...
0
votes
1answer
251 views
How do I get trac 12.2 to work on RHEL5's httpd with CollabNet SVN 1.6.17 (which has its own httpd)?
I installed CollabNetSubversion-client-1.6.17-1.x86_64.rpm, which installs httpd v2.2.19
# /opt/CollabNet_Edge/csvn/bin/httpd -v
Server version: Apache/2.2.19 (Unix)
I installed Trac-0.12.2.tar.gz. ...
2
votes
5answers
541 views
How can I move a process to a core or dedicate a process to a processor?
I have an Intel E5620 processor. I have used cat /proc/[pid]/stat to determine what processor the process was last run on (39th field). How can I ensure that a process is dedicated to a processor (I ...
6
votes
2answers
255 views
How to handle large numbers of connections from an IP address?
Every couple of weeks we have an issue whereby a single IP address opens a huge number of of Apache processes at the same time.
It seems to connect to similar pages each time, but our Apache ...
1
vote
1answer
58 views
create a specific directory within each directory in bash
We're running an application on RHEL and it is trying to write a mysterious log file to a directory that doesn't exist. I'm trying to determine a find command that could go through each sub-directory ...
1
vote
1answer
243 views
Install/Update a package on RHEL5 from CentOSPlus repo with same package existing in RHN
I'm trying to install postfix with MySQL on RHEL5
but the repos from the rhnplugin are overriding it even if i have an exclude line in the rhnplugin.conf file
My goal is to only use the CentOSPlus ...
0
votes
1answer
165 views
Access Vista Share from RHEL 5.3 Server - mount error 110
I am trying to access a file share on a Vista box from a RHEL 5.3 server.
The Vista box is part of a domain, but it has two NIC cards. One is on the 158.x.x.x network. The other card is on the ...
4
votes
4answers
2k views
How to fix the entropy pool issue with RHEL 5.x
RHEL 5.x has an entropy-generation problem (held-over from kernel 2.4). Following directions from here has produced little-to-no results:
How to increase entropy pool on a 2.6 kernel RHEL/Fedora ...
0
votes
1answer
81 views
Adjusting Linux Group Access
I have created a group in RHEL with one user in it. This user will need full rwx access to /home/anotheruser/ ,recusively. How do I change the user/group permission to allow that user/group to rwx in ...
1
vote
2answers
345 views
RHEL 5 server hang, which logs
I have a server which is hanging more times than I would like, are there any logs in particular that would be worth examining to determine the reason?
/var/log/messages has nothing of note ...
2
votes
4answers
2k views
Linux: disabled user accounts: Is there a non-root shell command that can show if an account is disabled or not?
Is there a non-root shell command that can tell me if a user's account is disabled or not?
Please note that I make a distinction between LOCKING and DISABLED:
LOCKING is where you prepend ! or * or ...
0
votes
3answers
396 views
RHEL5 Run script on Server's first boot
How can I run a script on the first book of my rhel 5 server after install.
I am using post kickstart tasks to create a script and I'd like to run it the first time the server boots. How can I do ...
0
votes
1answer
80 views
Determine ArcGIS version for on RHEL machine
I have a machine that is running arcgis but can't determine what version it is. The documentation I have found so far has been fairly sparse especially with regards to the linux server version of the ...
0
votes
3answers
369 views
Creating more space for MySQL with new mount
I'm using a cloud CentOS 5 instance and I realized that I left the default partitioning in the beginning. Everything on / is mounted already on hda that is about 10GB. The other drive (sda) is about ...
0
votes
2answers
389 views
Cannot find ssl libraries when configuring stunnel
I am using RHEL 5.6 and trying to install stunnel with the 'xforwardfor' patch from haproxy to get a setup similar to this (older) post: ...
1
vote
1answer
405 views
Finding the LVM root volume while in the Grub 0.95 CLI without access to the grub.conf file
If I have my root device is a LVM logical volume, how can I figure out the path via the Grub CLI without access to the original grub.conf file?
This is for use in the kernel command's root and ...
0
votes
1answer
177 views
Run CherryPy script with Python2.6 rather than Python2.4 on RHEL
Working on a RHEL 5 server. Trying to make a small CherryPy app that takes in arguments from the url (ex. internet.com/cherrypy/data/22/45 would return 22 and 45) and then use that to query a SQL ...
0
votes
1answer
144 views
Problem building pyodbc on RHEL5
I'm trying to build the python module pyodbc on a RHEL5 server. I've downloaded the source directly from the pyodbc google code page. Whenever I run the
python setup.py build
command, I'm greeted ...
10
votes
2answers
20k views
Upgrade CentOS 5.x to CentOS 6.x - tips and techniques
Now that CentOS 6.0 is making its way to the various mirror sites, I wanted to solicit opinions on the upgrade process. In working with the commercial RedHat 5.6 and 6.x distributions for the past few ...
1
vote
0answers
129 views
2 diferent versions of gcc in RHEL
I need to test a matlab EDA-LINK with Cadence Incisive.
For this , one of the libraries complains of an error:
version `GCC_3.3' not found (required ...
3
votes
2answers
753 views
Is there a way to disable the ptrace system call on RHEL5 Linux?
Is there any wat to disable the ptrace system call on RHEL5?
0
votes
1answer
321 views
SIOCSIFFLAGS: Resource or Device Busy
Have a Dell PowerEdge 2350 with dual nics built into the motherboard. eth0 works fine. Setting up an IP under eth1 results in the error: "SIOCSIFFLAGS: Resource or Device Busy".
I have two ...
1
vote
2answers
771 views
Building nginx 1.0.4 on Amazon EC2 micro - perl and python problems
I'd like to run nginx as a reverse proxy with apache2 on my EC2 micro instance.
yum install nginx gives me nginx-0.8.53-1.2.amzn1.x86_64.rpm
The current nginx is 1.0.4
I found and followed this ...
0
votes
2answers
413 views
RHN won't update currently entitled RHEL v5 server
I recently purchased RHEL v6 so I was able to get entitlements on my recently upgraded RHEL v4 machine to v5 (v6 is down the road currently).
However, in the web interface I run the updates, it fails ...
0
votes
1answer
100 views
Not able to install Statistics::Basic on RHEL5
I am trying to install the perl module Statistics::Basic::Mode on a RHEL 5 system and am having issues.
I have tried MCPAN and RPM. Here is the result of running
sudo perl -MCPAN -e shell > ...
