Red Hat Enterprise Linux (RHEL) is a commercially supported Linux distribution.
2
votes
0answers
109 views
Run a command before services are started
I have a Oracle Linux 6.3 system on which I would like to run a command when the machines starts up before any other services are started. The reason for this is to try and work around a bug in RHEL ...
0
votes
3answers
186 views
Changing the timestamp of a symlink
I know how to change the timestamp of a regular file:
touch -t 201301291810 myfile.txt
I was not able to do the same with a symlink. Is it possible?
Distro: RHEL 5.8
1
vote
0answers
107 views
after enabling Xinerama (in AMD condor Dual-Head Graphics Card) the system graphics hangs
I have a problem in my AMD Condor Dual-Head Graphics Card
When I enable Xinerama from "System → Preferences → AMD Catalyst Control center (Administrative)" my RHEL Server 6.3 (x64) Graphics hangs.
...
-4
votes
1answer
68 views
Sequence of errors leads to init failure and subsequent kernel panic
We have one Redhat test server installed on Vmware ESXI. And when I boot the server it gave this error.
How to solve this issue because due to this error it doesn't boot.
0
votes
2answers
100 views
What would be the RHEL package corresponding to build-essential in Ubuntu?
I know how to list available packages from the repos and so on, but how can I find a list that matches up equivalent meta-packages, such as the build-essential.
Is there such a thing and if not what ...
12
votes
3answers
749 views
how to run new software without updating GLIBC?
I installed Mathematica 9 on an old Red Hat Enterprise Linux AS release 4 system.
After the installation, I tried to start Mathematica, but following message came out:
...
2
votes
2answers
221 views
Upgrade zsh on red hat 5 x86_64
My machine is running RHEL 5 x86_64
I'm facing a problem with oh-my-zsh
The zsh version on my machine is
zsh --version
zsh 4.2.6 (x86_64-redhat-linux-gnu)
There are no upgrades available via yum. ...
1
vote
1answer
54 views
What is the 'pam-panel-icon' window?
After starting GNOME desktop, a window titled 'pam-panel-icon' appears, initially displayed in the upper-left of the desktop sized as small as possible. It can be resized, minimized, or maximized, ...
5
votes
2answers
233 views
Which of these three commands is telling the TRUE Redhat release information
I was checking for the Redhat release so this time I used three different commands. Two commands gave the same result but the third command gave different result. Which one is right.
...
0
votes
1answer
501 views
What is the easiest way to install Meld on RedHat Linux RHEL 5.4?
My company has RedHat RHEL 5.4 on the Linux box, and I need to install Meld on it. How can it be done?
$ sudo yum install meld
No package meld available.
Nothing to do
$ sudo yum search meld
No ...
7
votes
1answer
336 views
Why does Red Hat Linux use such an old kernel?
Why does RHEL (and its derivatives) use such an old kernel? It uses 2.6.32-xxx, which seems old to me. How do they support newer hardware with that kernel? As far as I know these kind of distributions ...
7
votes
1answer
214 views
How to stop users from Switching to Root user
I have disabled the root user login from Sshd.conf file so now no one can login using root user even if they know the password SOMEHOW.
Now I have 3 users in server ROOT,EMERG and ORACLE. I want to ...
0
votes
1answer
116 views
Mirror RHEL repositories
I'm attempting to install Spacewalk 1.8 with mrepo and create a mirror of RHEL 5&6 packages to use for frequently spun up development VMs. There are several guides that indicate I should use ...
0
votes
0answers
552 views
How to mount Windows shared folder on Redhat
Case::
I have to mount the windows shared folder on redhat directory /mnt or anywhere elese.
This is the Windows shared folder Path
D:\Analytics\Data\DownLoad This path will be mounted on Redhat so ...
-1
votes
1answer
68 views
Upgrading the kernel in Redhat Linux 6.0
How do you upgrade the kernel in Redhat Linux 6.0?
And how can I confirm whether it is updated or not?
3
votes
2answers
327 views
Does iptables -F permanently delete all iptables rules?
In a RHEL training document, the author says:
...run the following command to disable the firewall on the current system: iptables -F
He explicitly uses the word "disable" which to me suggests ...
4
votes
2answers
82 views
Why would I want to create more partitions if RHEL will only recognize up to 16?
During some basic RHEL training, I came across this blurb:
Although it's possible to create more, RHEL will recognize only up to 16 partitions on any individual SATA, SCSI, PATA, or virtual hard ...
0
votes
0answers
66 views
How to switch user if the Screen is Lock
Sometime this happen that when I had to do something on server I find that the screen is lock and I dont know the password of that user to unlock it and switch the user.
So i need to know that How to ...
0
votes
1answer
412 views
Server inbound email forwarding
I have been struggling to get this to work for a little while now so I have come in the hope of getting a wee bit of help.
I am running redhat 6.3, and using the machine as a webserver. My question ...
0
votes
1answer
75 views
Cannot edit crontab
I'm running RHEL 5.6. I type
$ crontab -e
and all I see is
Killed
I am, however, able to edit a file (let's say I call it crontab.in) and then type
$ crontab crontab.in
$ crontab -l
and see ...
2
votes
1answer
102 views
RHEL6 not registering correctly when using PXE boot via Cobbler
When I create a RHEL6 server using the DVD media, it works fine. However, we want to do PXE installs.
We import the RHEL6 DVD to cobbler by doing the following:
$ sudo mount -o loop,ro rhel6-dvd.iso ...
0
votes
2answers
435 views
Why VNC not showing actual Remote Desktop
Ok i installed vnc server on RHEL 5.9 and also installed Tightvnc viewer on windows 7 and from RHEL i started vncserver and assigned the password using vncpasswd.
Then from tightvnc viewer i gave the ...
0
votes
2answers
596 views
How to easily install Google Chrome and Firefox on RHEL 5.4 (RedHat)?
I heard that it should be not that hard to install Google Chrome and the latest Firefox on RHEL 5.4. (the OS our company support is only up to RHEL 5.4). It probably requires some make install and ...
0
votes
5answers
109 views
cron job schedule
I created a cron job using * */2 * * * schedule. Can anyone tell me what schedule this refers to?
I guess it should execute every 2 hours, but it seems to execute every minute.
0
votes
4answers
175 views
How to verify if the Language is installed
Is there some command for Redhat Linux that can tell me whether the Arabic Language is installed on Redhat 5.6 Server.
0
votes
1answer
448 views
Public key not found for RPM
I am trying to install package on Redhat 5.5 using YUM but it always give me this error
[root@redhat64 Desktop]# yum install perl-Net-Server-0.97-1.el5.rf.noarch.rpm Loaded plugins: rhnplugin, ...
1
vote
1answer
47 views
How to Update only important Security Packages in redhat 5.6
One of our client has Redhat 5.6 and he is asking to update only the important packages.
But question is how do we know which are the important packages.
Note:: It will be a partial Update not ...
1
vote
3answers
178 views
How to install Redhat using the iso image stored on Network
This is the case. I want to install the Redhat 5.6 on my system. But this time i dont want to use the actual DVD but this time i want to install it using the iso image stored on one of our server HDD.
...
1
vote
3answers
45 views
execute file in server more safely?
We have a application which takes a C++, C, or Java file as input, executes it, and displays the output to the client. What are the best measures that can be taken so that no security related issues ...
0
votes
1answer
62 views
Does RHEL 6 enforce software constraints on the number of SATA drvices that can exist on a system?
I came across the following blurb in some RHEL 6 training documentation:
The number of drives that can be installed on modern computers has increased. With port multipliers, it's relatively easy ...
5
votes
3answers
377 views
Why is the theoretical RAM limit for RHEL 6 128 TB and how is this determined?
I'm studying for RHCSA and am confused by a statement I came across in some training material:
There is no practical maximum RAM, as theoretically, you could run 128 TB of RAM on RHEL 6. But ...
0
votes
2answers
80 views
How to format Partition
I need to format Partition on Redhat 5.2
/dev/mapper/VG00-LogVol 148G 111G 36G 76% /u001/app/oracle
Please advice how to do it.
Thanks
1
vote
1answer
197 views
What is rsh.rlogin and How to remove rsh.rlogin
I never heard of this word rsh and also received a check list from Security pro that we have to disable rsh.
Can someone please tell me what is this rsh and how to disable it.
Base OS : RHEL 5.5 and ...
4
votes
1answer
334 views
autofs mounts not disconnecting after inactive
I have autofs installed on several linux servers that are connecting to central NFS server for the users /home directories. It works great when mounting the directories on login, but the mounts never ...
0
votes
1answer
88 views
What does m represents in VIRT column using TOP command
When we run top command it shows all the processes information. But under VIRT column there is m written against some values what does that m represents, is it MB . If yes then why it is only showing ...
0
votes
2answers
140 views
Plugin support for gcc in RHEL/CentOS?
Is there anyway to enable or install plugin support for gcc in RHEL/CentOS?
0
votes
0answers
21 views
How to upgrade Local Server with Local Upgrade Server
This is the case
We have One Upgrade Server and it is connected to Redhat Network and it downloads all the updates. Means it is fully up to date.
What I need is that I need to connect the client ...
2
votes
2answers
161 views
Where did Redhat derive from?
Where did Redhat derive from? Did it derive directly from Linus Torvaldis linux distro (2 years earlier) or did it have roots in BSD or System-V ?? I am just wondering how to classify Redhat in the ...
1
vote
1answer
168 views
Need help to configure my NIC in Redhat
I am trying to set a larger buffer size in my NIC card. I am following the instruction provide by Intel link, but i think it didn't made any changes.
[root@redhat-enterprise-test01 admin]# rmmod ...
0
votes
1answer
71 views
How to Install, Configure and Use LSAT
I saw a tool LSAT that is used for Security auditing of Linux Servers. But found not much material for LSAT. Can someone please provide help of how to
Setup
Configure
Use Lsat
1
vote
0answers
307 views
How to Disable AutoMount of External Drives
Is it possible to Disable auto mount of External Harddrives or USB's in RHEL.
For security reasons I have to disable this feature.
And when I need it I will enable it back.
3
votes
1answer
1k views
How do I configure the network interfaces persistently in CentOS so it will survive a reboot?
I configured a network interface with the following commands:
ifconfig eth0 up
ip addr add 192.168.9.1/28 dev eth0
route add default gw 192.168.0.1
This works. However, when I reboot the machine I ...
1
vote
2answers
87 views
How to view Graphical view of Application using ssh [duplicate]
Possible Duplicate:
How to forward X over SSH from Ubuntu machine?
Is it possible that I can view the GUI of application when I pass some command to Redhat linux Server using ssh. Like when ...
1
vote
0answers
393 views
Can't ping first IP with dual NICs on different subnets with multiple gateways
I have two NICs assigned to a server.
eth0 - 10.199.10.0/24 w/ a GW of 10.199.10.1
eth1 - 10.199.20.0/24 w/ a GW of 10.199.20.1
From my desktop, I can ping the IP assigned to each NIC just fine ...
0
votes
1answer
757 views
How to install emacs using YUM without X11 libraries?
I have installed a minimal installation of CentOS 6.3 inside a VirtualBox VM. Now, I would like to install Emacs for use from the command line only.
When I do a search for emacs using yum search ...
5
votes
2answers
466 views
How to continuously take backup of log files?
I have some applications in Lunux which creates Log files of around 41 MB each. The log files switches from log.1 to log.2 and starts overwriting log.2 once this 41MB is completed in log.1 file.
I ...
2
votes
0answers
95 views
How to edit rpm's HEADER and NAME-VERSION-RELEASE
Is there's a way or a tool that can modify the HEADER and the NAME-VERSION-RELEASE for an existing rpm without installing/rebuilding it?
3
votes
1answer
205 views
How to change the properties of a desktop panel from the command line?
I use RHEL 6 as my regular operating system and for one of my user accounts I made one of the desktop panels as auto-hide and other as a fixed panel. I expected the hidden panel to appear above the ...
2
votes
0answers
90 views
recommended procedure to create a user/group during RPM install
after trying hard to search for RPM best practices guides and finding virtually none, to my surprise, I resort to the community -
I need to ensure that some users and groups exist after the ...
1
vote
2answers
329 views
How to check how many External Hard Drives are connected to Linux Server
Is there a way to distinguish between the Internal Hard drives and External Hard drives.
Actually i need to see how many External hardrives do we have and to which server are they connected .
This ...
