Red Hat Enterprise Linux version 5 is a Linux distribution sold by Red Hat, Inc. for the enterprise market.

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How do I tell the actual IOPS used by Oracle? [migrated]

This is hopefully a simple question. We have a large DB deployment that we need to scale up over the next year. For scaling we have been relying on our vendor, but recent developments have caused us ...
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1answer
239 views

What could cause *every* command in RHEL to be executed by root?

Recently I was asked to look at a system for a "friend" that left me completely stumped. Their original problem stated to me: They have a RHEL 5.10, gnome desktop fairly typical install They are ...
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1answer
41 views

Using a single APC UPS via network switch to gracefully shutdown many servers

Here is my situation. I have 10 Dell servers in my rack with 8 1500VA battery backups. I would like to take 1 of those battery backups and connect it to my network switch and use a software solution ...
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0answers
11 views

How to extract single day Munin graphs

We have one monitoring server and on that I install Munin. Now i need to extract Feb 1 Graphs. Is it possible to extract the graph and will it effect the latest graphs
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1answer
36 views

I have servers that keep becoming inactive in RHEL Satellite 5.3

I have lots of RHEL 5 servers subscribed to a Satellite 5.3 server (I know it's all old, not my choice). After I register servers, many of them seem to fall out and become inactive and require ...
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15 views

Which files are updated when I use gdmsetup to configure remote XDMCP?

I am configuring my RHEL 5.6 box to use XDMCP and following some pretty straightforward instructions to do this using gdmsetup. XDMCP seems to be working just fine but my problem is I need to be able ...
2
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0answers
49 views

Set Linux GID based on LDAP OU in ldap.conf

In our company we have a given LDAP Server, which represents the Users of our Windows Active Directory. Unfortunately the gidNumber sent to the LDAP client is always containing the Value "1001" for ...
4
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1answer
63 views

How is “kernel.*” syslog spoofing prevented?

I'm finding instances of syslog-ng writing out garbage followed by a blank kernel.emerg line in one of our production environments. Example of one: Dec 21 00:14:56 someserver [syslog-ng.err] Error ...
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1answer
56 views

NFS mount still connected even after box is disconnected from network

I have a mount between a RHEL 5.6 and a Solaris 6 box acting as the NFS server. My mount options are simply rw,intr. When I disconnect the RHEL linux box from the network I am still able to write ...
3
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1answer
170 views

How to monitor NFS load from userland?

Apologies if I'm not using the proper jargon (although I'm a longtime linux user, I'm not an admin) or if this is a FAQ (though searching SE got lots of hits, I didn't see anything quite like this ...
2
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1answer
56 views

How to programmatically umount filesystems mounted by autofs?

I have some RHEL systems where I need to disable autofs. What I typically do is run a script on each of these hosts that executes something like this: # /etc/init.d/autofs stop ... # /sbin/chkconfig ...
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28 views

Keepalived process not listening to advertisement

I have a keeplived setup working on RHEL 5.5 working file. Below is strace of keepalived master, which is reading advertisements off the network and sends its advertisement to the network. ...
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0answers
106 views

Clean RHEL5 build from kickstart adds Public IP to /etc/hosts

Our infrastructure has a Kickstart server which can serve up RHEL6 builds with some post-installation scripting that handles customization and configuration. I'm currently in the process of updating ...
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0answers
74 views

Built in chroot jail RHEL 5 returns No such file or directory

I need to create a chroot jail on my RHEL5 production server to allow a specific user to work with the less right possible, but with GIT. Here is my system configuration : RHEL 5 : Release 5.10 ...
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1answer
81 views

Kerberos authentication of Windows clients and Redhat 5.5 with Samba PDC?

I already realize that configure Redhat 5.5 as PDC (Primary Domain Controller), and the clients (Windows XP and Windows 2003) can join the realm. The realm name of Linux server is EXAMPLE.COM. ...
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1answer
27 views

cron to anacron migration process

I have a script that I want to run nightly on my lab's RHEL 5 and 6 workstations, so I'm deploying the script to each system's /etc/cron.daily/ directory and making it executable there. But some ...
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0answers
51 views

Username/password for Oracle Linux 5.8 VirtualMachine

I have the Oracle Linux 5 ova (converted to VirtualBox). The documentation I have seen mentions using either root/oracle or oracle/oracle to login. However that is not working. Any ...
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1answer
45 views

Wireshark not found after installing RHEL 5.5 [closed]

After installing Wireshark in RHEL 5.5 (32bit) with following command: yum install wireshark Wireshark not found: [root@localhost ~]# wireshark bash: wireshark: command not found What ...
2
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1answer
41 views

Multipath path groups

For native RHEL multipathing, what is the difference between having 2 paths in a single path group as opposed to 2 path groups (with same priority) containing 1 path each? Is one preferable to the ...
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4answers
113 views

Unable to change default route-Rhel 5.9

am trying to change default to route to eth2 my present rout -n o/p-- Destination Gateway Genmask Flags Metric Ref Use Iface 10.235.4.0 * 255.255.255.0 U ...
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vote
1answer
184 views

Installing and running apache2.2 and apache2.4 concurrently on same server

We have a need to run Apache 2.2 and Apache 2.4 web servers on the same VM. The need is created by: A requirement to host an Oracle WebGate module, which doesn't support Apache 2.4 (we use the Red ...
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0answers
68 views

Default owner and setting sticky bit by default

I have a RHEL 5.5 server and want to set up some specific security for a directory: Please note that I am not asking how to do this one time... that has already been done. I want all new ...
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1answer
60 views

How to increase deletion speed of several folder

I have a script containing about 420k lines of "rm -rf" command like which where generated using a "find" statement. Each pdf's folder is containing between 1 and 30 files (no subfolder). rm -rf ...
2
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1answer
81 views

Linux device names: What other non-standard storage device names are there apart from /dev/cciss

This is a question about Linux storage device names on RHEL5 and RHEL6 Most storage devices are accessible using device names /dev/sda, /dev/sdb, etc. By storage device I mean a device that could be ...
3
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2answers
46 views

Finding home directory of all users

I'm a software dev suddenly finding myself having to play SysAdmin. Recently, I was given a box previously administered by somebody else, and this SysAdmin kind of just did what he wanted. My ...
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17 views

RHEL 5.9 crashes after resync

I've installed RHEL 5.9 on a server with two hard drives in it. I set them up as raid 1 during the installation. After installation is complete, I notice that the raid I set up on the root partition ...
2
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2answers
270 views

svnserve seems to write files as root. How can I give access to the same repository via svnserve and apache?

The aim is to set up subversion with both svnserve and apache/webdav access. When users commit via http/apache, files are written to the filesystem and belong to apache user. When users commit via ...
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1answer
56 views

What hardware profile tool exists for RHEL 5.x similar to `lscfg` or `system_profiler`?

I am looking for an equivalent tool or command to dump connected hardware (and optionally software) to a text or XML file for documenting system configuration on RHEL 5.8 specifically. I am used to ...
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1answer
68 views

Cannot perform smartctl self-test after migrating servers from SLES to Scientific Linux

I maintain several Linux servers, that we are in the process of migrating from SUSE Linux Enterprise Server (version 10.4) to Scientific Linux (version 5.9). The six SAS hard drives on each machine ...
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3answers
173 views

finding kernel space programs [duplicate]

how can we determine %sy process that is Consuming CPU. In the following case there is no netfilter and traffic is under 1 mbps.but still system process are taking too much cpu and cpu usage for ...
6
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1answer
290 views

LSI RAID controller errors on DB import - How to troubleshoot?

We're running an import of a database dump on an Oracle system - (RHEL 5.9, 2.6.18-348.6.1.el5). The import does not complete, eventually erroring-out with: ORA-15080: synchronous I/O operation to a ...
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37 views

RHEL 5.4 Sound redirection to a XP client

I have a RHEL 5.4 VM running on VMware vSphere ESXi 5.1, I need to gain access to the sound output at a "client workstation" running XP. Does RHEL 5.4 even support PulseAudio? VLC is installed on the ...
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55 views

How to investigate Linux scheduler issues?

I have a Linux server process that should runs multiple threads at close to 100%, each on its own CPU. When I run the process on one server (see [1] below), the CPUs in question appear to stay pegged ...
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1answer
676 views

Getting HAPROXY to redirect http to https in users browser session

We are currently using a Internet cloud provider to host our SaaS platform. The platform consists of a Firewall -> Cloud Provider SLB -> -> Apache Web Server -> HAPROXY SLB -> Liferay Platform We ...
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3answers
92 views

RHEL (say 5.6, kernel 2.6.18-238) with dual IP address (IPv4v6)

So I have a SERVER that that utilizes RHEL's (assume 5.6) underlying kernel for setting up TCP connections and other networking aspects. My deployment need requires that the SERVER have dual IP ...
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1answer
94 views

Why does Satellite need a kickstartable distribution for cloned channels, but not on the official main Red Hat Channel?

I have been using Satellite for a while now and I am able to kickstart machines directly from the official main RH channels Red Hat Enterprise Linux (v. 5 for 64-bit x86_64) Red Hat Enterprise Linux ...
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1answer
533 views

What to do with subscription-manager in a Red Hat Network Satellite environment?

Yum commands all give the following error message: Unable to read consumer identity It seems however that subscription-manager plugin should be disabled if I use RHN/Satellite? What to do after ...
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1answer
35 views

CPU Spikes when Untar'ing File on Virtual Server

I have a RHEL 5.5 on VMWARE running with 64GB Memory. When we untar a file (part of a daily process) the CPU Load sometimes spikes - rendering the server essentially nonresponsive. The disks are ...
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1answer
132 views

Upgrading ImageMagick RHEL 5 [closed]

We have been using ImageMagick for quite some time with out any trouble. However, today we can across an pdf we were trying to convert into a jpg thumbnail, which would fail: $ convert example.pdf ...
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3answers
226 views

RHEL 5 blocking outgoing traffic, incoming SSH works, traffic on 2nd interface works, iptables is off

I'm having a strange problem with an RHEL 5 server. I changed its IP address, we are migrating to a new address pool, and something is blocking all outgoing traffic, but I can SSH in on that ...
0
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1answer
38 views

RHEL Mail From Address

I have several virtual servers that were cloned from the same original server. Whenever I send mail from them using "mail", the from address shows up as the name from the original server but the ...
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0answers
119 views

Read-Only User Account, for troubleshooting, with enough privileges to run normal monitoring programs

How can we create a user account on RHEL(or other Linux OSes) such that the user Has complete read access to everything on the system (except password files, of course) Has no write privilege at all ...
1
vote
1answer
228 views

RHEL 5.8 LDAP pam_groupdn customisation

I have a given LDAP-Server I want to use for User Authentication on my Red Hat Enterprise Linux 5.8 Server. I got the connection to the LDAP-Server working and I'm able to Login to the Linux Server by ...
2
votes
1answer
397 views

Caveats when upgrading from RHEL 5.4 to RHEL 6.3 on hundreds of production servers [duplicate]

Possible Duplicate: Caveats when upgrading from Java 6 to Java 7 on hundreds of production servers I am about to upgrade the RHEL version from RHEL 5.4 to RHEL 6.3 in a few hundreds of ...
0
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1answer
26 views

Client Side Negotiation

I have -MultiViews set and SSLInsecureNegotation off ( in ifmodule of mod_ssl.c) in Apache. But still vulnerability report says I am vulnerable to client side negotiation and "This server is ...
2
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2answers
327 views

Server sending out packets bigger then MTU

I have a server that I am transferring data off of. We were having some problems that were traced back to the fact that the server is sending out jumbo size frames despite the fact that ifconfig is ...
0
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1answer
215 views

Ganglia web generating “error collecting ganglia data (:): fsockopen error”

Now, I'm trying to install a new ganglia-web interface to replace an older one. Google searching on the error got me a lot, but none of it helps. One large distinction I note is that Google usually ...
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2answers
83 views

MySql in Bash: Show only errors

Let me first start off by saying I am not an experienced linux user. I am trying to debug a mysql script in linux, however, my issue is that most of the queries are successful so I can not see the ...
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2answers
359 views

How do I put VMware guest drivers in the initrd?

I am trying to get a Red Hat 5.8 box booting via pxe. The box is a virtual machine on ESX5.0 it has a Paravirtual SCSI Controller and VMXNET3 network driver. Now these drivers do not come default in ...
2
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4answers
3k views

ntpdate works, but ntpd can't synchronize

This is in RHEL 5.5. First, ntpdate to the remote host works: $ ntpdate XXX.YYY.4.21 24 Oct 16:01:17 ntpdate[5276]: adjust time server XXX.YYY.4.21 offset 0.027291 sec Second, here are the server ...