Questions tagged [redhat-enterprise-linux]
Use for questions about Red Hat Enterprise Linux (RHEL), a Linux distribution from Red Hat intended for enterprise use. Note there are version-specific RHEL tags for questions unique to a specific version. Use a product-specific tag for questions about other distros in the Red Hat family, like Fedora or CentOS.
1,121
questions
-1
votes
1
answer
39
views
Samba Shares Fail - Pre-Authentication Failed
Good day,
We have multiple HPCs (RHEL, CentOS, Ubuntu) running samba shares so that user can easily transfer files back and forth. About 3 months ago, the DCs/AD got a refresh, redundancy (2 servers) ...
2
votes
1
answer
6k
views
error: zlib library and headers are required R on HPC
System:
Red Hat Enterprise Linux Server release 6.5 (Santiago)
I’ve installed zlib 1.2.11 on the home folder of a Red Hat HPC as part of the process for installing R base 3.4.0.
I get this error ...
1
vote
2
answers
7k
views
Can not get vncserver to start on rhel 7
Good day
I'm running RHEL 7.6 with kernel version 3.10.0-514.el7.x86_64.
Vncserver version is tigervnc-server-1.8.0-17.el7.x86_64.
My vncserver@:1.service file looks like this, I have replaced <...
0
votes
0
answers
51
views
Changes in keyboard layout. Is that per user or globally?
We work with international teams.
So we have RHEL servers with multiple keyboard layouts.
If I change the layout of my keyboard, does this changes for other users on the same server aswell?
If so is ...
0
votes
1
answer
38
views
brew install fails with "no space left on device" on RHEL 9, how do I fix it?
I'm not so familiar with how to solve issues like this, anyone knows what might needs to be done to fix this?
[randomusr@jumphost ~]$ brew install hello
==> Downloading https://ghcr.io/v2/homebrew/...
3
votes
3
answers
2k
views
How can I correctly check on what network interface SSH is listening on a Linux machine?
I am not a system engineer or a network expert (I am more a software developer) and I have the following problem that I have to solve.
I am working on an Oracle Linux machine (basically it should be ...
0
votes
1
answer
18k
views
cannot open `' for reading: No such file or directory
I am trying to run .sh file on RH6 and getting this error...
cannot open '' for reading: No such file or directory
The script I am running is internally referencing other scripts, located in same ...
0
votes
0
answers
28
views
RHEL 8 -- Configure TigerVNC server so it will start user sessions only if they try to connect
I configured TigerVNC server on RHEL 8 according to the instructions provided by RedHat and IBM. I have configured it for several users and everything seems to be working fine.
The problem is that ...
0
votes
0
answers
31
views
YARN resource manager "HTTP request sent, awaiting response..."
we have Hadoop cluster with active/stand by resource manager services the active resource manager is on master1 machine and the stand by resource manager is on master2 machine
in our cluster YARN ...
1
vote
1
answer
5k
views
Do I need a daemon-reload after stop, disable and removing the service file in systemd
I have a custom service. I recently ported it to systemd for RHEL7. I usually stop, disable and remove the service file. Is that enough or do I need to do these also
rm /etc/systemd/system/[...
0
votes
1
answer
77
views
Can't connect USB 3.0 storage device to my RHEL 8.8 VM
System details:
RHEL 8.8 VM
ESXi 6.5
Problem: Attaching my USB to the VM as a storage device.
The USB port on my laptop is a 3.2. The USB key is a USB 3.0.
When I try attaching it to the VM, I get ...
7
votes
3
answers
5k
views
how to solve: ssh "Connection corrupted" error
On a Oracle/RedHat VM that I use every days (probably after the nightly upgrades) I've this authentication error:
$ ssh machine
Bad packet length NNNNNNN. ssh_dispatch_run_fatal: Connection to A.B.C.D ...
0
votes
0
answers
30
views
RHEL 8.6 - pgrep hangs
I have an issue with pgrep which hangs and doesn't return anything.
The problem is that I'm not even sure where to start debugging.
Could anyone suggest anything?
Thank you.
1
vote
0
answers
39
views
Why is my alias command doing nothing?
It's not that trying to run the alias doesn't do what I expect. The alias command itself appears to do nothing.
If I try to do:
alias python2='python3'
alias | grep python
I get two blank outputs. I ...
1
vote
2
answers
9k
views
How do I add a user to the wheel group in Redhat even if the user does not exist?
In SUSE the command groupmod -A "username" wheel will add any user, even if they don't exist, to the wheel group.
In Redhat the -A argument does not exist. and other tools such as groupmems will not ...
5
votes
2
answers
5k
views
Chromium won't play mp4
I have chromium (version 79) installed on my Red Hat 7.6 system and cannot play any mp4 videos. I attached an image below of what it looks like when I run chromium-browser <mp4 video>. I have ...
1
vote
2
answers
5k
views
The "shmmax" value is too large when installing Oracle 11g on RHEL7
I am trying to install Oracle Database 11g Release 2 on RHEL 7.2. Executing runfixup.sh, it outputs:
# /tmp/CVU_11.2.0.1.0_oracle/runfixup.sh
Response file being used is :/tmp/CVU_11.2.0.1.0_oracle/...
0
votes
0
answers
52
views
PuTTY script reading a list? [duplicate]
Is there a way in PuTTY to run a script that will read a file of names and then answer a prompt of yes (per name)?
It is a Red Hat Linux backend server that I am connecting too.
At times I can get a ...
3
votes
1
answer
7k
views
What does --allowerasing option in dnf command do?
I am reading a book which instructs me to install 5.24stream and minimal profile of Perl module by running...
dnf module install perl:5.24/minimal --allowerasing
Everything was explained in it except ...
0
votes
0
answers
29
views
Creating a hybrid SELinux policy for a specific directory?
I have a machine "NFS-Server", a machine "Hybrid", and a machine "TFTP-Client" which I would like to connect in the following way:
NFS-Server allows Hybrid to mount to a ...
0
votes
0
answers
62
views
vmstat + on RHEL machine high values of swpd
The swpd field indicates how much swap space has been used; this value increases when your systems physical memory is full and the Linux kernel starts to use the swap partition/file. When the systems ...
0
votes
0
answers
45
views
tar give exception when preserve permission/specials files across filesystems
I am using the following tar command and tar flags in order to preserve hard and symbolic link & permissions on RHEL 8.6 version
but we get the exceptions about tar: '--same-order' cannot be used ...
1
vote
1
answer
2k
views
Cannot load mod_xml2enc Apache2 module
I'm installing reverse-proxy-related modules to Apache2 HTTPserver but mod_xml2enc module isn't found in module directory.
How can I install in (Red Hat 4.4.7-23) with Apache/2.2.15
I'm having the ...
0
votes
1
answer
5k
views
Kernel 4.4.1-1 fails to boot - root volume "does not exist" - 3.10.0.327 and 4.3.3-1 both continue to boot fine
I'm trying to install and boot kernel-ml (currently 4.4.1-1) on RHEL 7.2 following the instructions here: http://linuxg.net/install-kernel-4-x-on-enterprise-linux-7-centos-7-and-rhel-7/
Install works ...
0
votes
1
answer
5k
views
one valid linux group missing in /etc/group but can be found in getent group
One weird problem. I'm trying to add one user(say myuser) to a group (linuxadmins), but get following error.
sudo usermod -a -G linuxadmins myuser
usermod: group 'linuxadmins' does not exist
Then I ...
0
votes
0
answers
15
views
Pulse Audio Not Working With X-Forwarding
I'm using Virtualbox VM's. Both host and VM's are running Red Hat 6. When I open the VM, I am able to hear audio from the VM.
However, there is a need for the windows on the VM to be X-Forwarded to ...
1
vote
1
answer
5k
views
Openvswitch: multiple virtual bridges over one bonding interface
My ultimate goal is to configure a RedHat 6.6 server with Openvswitch as shown in the following image:
Interfaces configuratión files are:
ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
NM_CONTROLLED=no
...
3
votes
1
answer
4k
views
How to install packages on Linux without root-access?
For whatever reasons, root-capable administrators at our organization limit the choice of packages to the vendor's official "base" repository (RHEL).
Not even EPEL is possible, much less IUS.
Our ...
4
votes
2
answers
4k
views
what's the difference between /etc/init.d/sshd start and /usr/sbin/sshd?
I'm having issues with passwordless ssh. I've checked, double checked and checked again that I have everything set up correctly.
Both machines are RHEL6 and when the destination machine first boots ...
0
votes
0
answers
153
views
add capacity using LVM system
my current /home directory is lack of storage so i want to add capacity to LV. want to confirm if my execution plan will not distroy the existing system.
Here is the current disk status:
df -h
/dev/...
0
votes
1
answer
75
views
why fdisk -l /dev/sdX not show under system the "Linux LVM"
from fdisk -l /dev/sda , we got the following
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 ...
0
votes
2
answers
773
views
VLC media player installation on RHEL 9
Please help me to install VLC media player on Red Hat Enterprise Linux 9. I tried these installation steps, but they failed.
I tried to skip few packages during the installation too, but I could not ...
0
votes
1
answer
4k
views
systemd service failed to start with errror : "main process exited, code=exited, status=3/NOTIMPLEMENTED"
I am getting below error when i start a systemd service
[localhost.localdomain]-> systemctl status rcc_rccproxy.service
* rcc_rccproxy.service - starts RCC Proxy process
Loaded: loaded (/etc/...
0
votes
2
answers
4k
views
Configure a static ip to a redhat vm on virtualbox
I have some questions about configuring a redhat vm on virtualbox. The installation id done. When i used the command isee that i have no ip adress for eth0. So i want to set static ip adress to my vm. ...
1
vote
1
answer
3k
views
How to use yumdownloader to download specific version of a source rpm?
by using folloing command:
yumdownloader --source 'package-name-without-version'
It will only download the newest source rpm of said software.
how do I download specified version of source rpm ...
0
votes
0
answers
68
views
Are there alternative methods for installing Video4Linux (v4l) and Linux DVB (DVB) drivers for RHEL 9?
In RHEL 9, Video4Linux (v4l) and Linux DVB (DVB) devices television and video capture devices are no longer supported. https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9....
0
votes
0
answers
98
views
RHEL + kill -9 not really killing the process
We have around 85 running process with lshw
Since these process increased the CPU load average ,
We tryed to kill them with kill -9 but without success
root 3275 0.0 0.0 131720 8992 ? D ...
5
votes
3
answers
10k
views
I can't connect to ms sql instance - internal
The Platform and Software versions I am using are as follows :
Red Hat Enterprise Linux Server release 7.4 (Maipo)
Microsoft SQL Server 2017 (RTM-CU3-GDR) (KB4052987) - 14.0.3015.40 (X64)
Dec 22 ...
3
votes
2
answers
4k
views
Something similar to inotifywait, without being able to install inotifywait
I wanted to continuously re-build and test projects, but just discovered my school's RHEL distribution doesn't come with inotify or inotifywait.
Are there any alternatives I could use, which would ...
0
votes
1
answer
143
views
disk util is very high + what the proactive steps we can do in order to minimize it
Our Kafka cluster includes 12 VM RHEL 7.6 machines.
machine spec details:
CPU(s):14
Kafka disk is VMDK disk. ( sdb disk)
RAM 48G
When Kafka cluster is working hard (when injection data to Kafka ...
1
vote
3
answers
1k
views
I accidentally moved my /lib64. How do I fix this?
For some stupid reason, I thought it was a good idea to do sudo mv /lib64 /old_lib64.
Now I can't do ANYTHING (not opening files, not starting new terminals, not even ls).
The only thing I can do now ...
0
votes
1
answer
4k
views
persist ethtool settings between reboots
RHEL Deployment Guide suggests following:
ETHTOOL_OPTS=options
where options are any device-specific options supported by ethtool. For example, if you wanted to force 100Mb, full duplex:
ETHTOOL_OPTS=...
6
votes
1
answer
5k
views
Differences in nc (netcat) options on Ubuntu vs RedHat
nc -q -1 local host ${PORT} ${CMD}
In Ubuntu, nc may be used as above, with the -q option. See manpage.
-q after EOF on stdin, wait the specified number of seconds and then quit. If seconds is ...
1
vote
1
answer
3k
views
Anaconda kickstart Variables
I am have an issue where I am trying to store a user's input in the variable called $mail, in the %pre environment of anaconda, and then pass it into the %post script, where it will append to the file ...
1
vote
2
answers
5k
views
UDP: bad checksum + from the dmesg
from the dmesg we see the following:
UDP: bad checksum. From 34.21.56.68:4343 to 32.3.42.22:4343 ulen 20
UDP: bad checksum. From 34.21.90.186:4343 to 32.3.42.22:4343 ulen 20
UDP: bad checksum. ...
0
votes
1
answer
44
views
Tmux conf returns error at start
I ssh to a remote server with TMUX. The .tmux.conf file is very simple:
setw -g mode-keys vi
set -g status-right '#(TZ=Asia/Kolkata" date +"%%Y-%%m-%%d %%H:%%M")'
And the relevant ....
1
vote
0
answers
55
views
SCP silently ignored on the remote machine
When I'm trying to copy a file using scp (in whatever direction), there's no error displayed (although the returned $? code is 1), all I can see is the message that normally the REMOTE machine prints ...
1
vote
0
answers
135
views
Why is sudo taking a long time to execute
When running commands with sudo it always takes about 4 or 5 seconds for the command to run even something as simple as echo test.
I am running rhel 9.
After looking at some other question I ran sudo ...
0
votes
0
answers
637
views
Adding default route permanently
I need to add a default route permanently in rocky Linux. The VM that I am using does not have a physical NIC and it cannot have one (for security reasons). That means when you run nmtui you do not ...
0
votes
0
answers
109
views
"javac is not recognized as an internal or external command, operable program or batch file" error; PATH methods failing
I'm taking Data Structures right now and I've been having issues with Java on and off throughout, but now it just won't work on my computer anymore.
I downloaded the Eclipse Temurin JDK 17 for Windows ...