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.
1,123
questions
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inconsistency while using ulimit
I am running into an inconsistency while using ulimit. I make changes directly to the conf file "/etc/security/limits.conf".
Whenever I use just user names, I have zero problems.
For example:
root ...
- 51
1
vote
1
answer
6k
views
Uninstall MySQL 8.0 and Install 5.7
I am trying to downgrade mysql version from 8.0 to 5.7. I was able to successfully uninstall MySQL 8.0, but when i try to install 5.7 I am getting following error.
Error: Package: mysql-community-...
- 13
1
vote
1
answer
204
views
How to configure Auditd to see directory name change?
In my /etc/audit/audit.rules, I have the following watch:
-w /some/place/special -p rwxa -k my_key
On my filesystem, I have the following tree:
/some/place/special/foo/test-rename/james/sub-...
- 11
1
vote
1
answer
81
views
What happens to the unused packages after an ISO install?
I am making a Red Hat ISO that boots off a kickstart configuration file. To do this, I have been following these instructions over at Server Fault.
The ISO that I want to edit, which will eventually ...
- 125
3
votes
1
answer
7k
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RHEL choosing java with alternatives without --config
A machine on which there is already the following packages installed:
java-1.7.0-openjdk
java-1.7.0-openjdk-headless
I have also then installed java-1.8.0-openjdk-headless via yum.
When installing ...
- 161
-1
votes
2
answers
98
views
Will an Ubuntu terminal in windows10 be compatible with Fedora/RedHat server?
I have downloaded the Ubuntu app in my windows10 laptop as an alternative to Putty or some other kind of emulator. With the ubuntu terminal I would be ssh'ing into my institutions server which is run ...
0
votes
1
answer
451
views
getting SSL connect error from git clone on red hat Enterprise Linux 6.7 (Santiago)
I just installed version 2.22 of git on linux red hat enterprise release 6.7 (Santiago) and when I try to clone a repository I get the following SSL. connect error message:
$ git clone -b 6.7 https://...
0
votes
1
answer
132
views
Access VM localhost from Host
I have installed Redhat 7 on the VMware which is on windows 10.
Now, I am trying to access RHEL localhost(10.10.1.***) from the Host(Windows). I am able to access 10.10.1.*** from windows through ...
- 1
0
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0
answers
76
views
Unable to download some packages on Redhat
I am unable to download the pam-devel, zlib-devel and openssl-devel packages on a Red Hat Enterprise Linux Server release 7.4 (Maipo).
When executing # yum install pam-devel I am getting the ...
0
votes
1
answer
402
views
Updating Kernel on a Redhat Azure VM is failing
I am trying to run yum update on my Azure Redhat VM : yum update -y
And I am getting this error :
Error: Package: containerd.io-1.2.6-3.3.el7.x86_64 (docker-ce)
Requires: container-selinux ...
- 1
1
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0
answers
3k
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ip configuration could not resolved (no available address, timeout)
I am running virtual box fusion with multiple VM's on it. on all the VM's i am facing an error when i tried to connect my VM with DHCP.
Error: connection activation failed: IP configuration could ...
- 11
1
vote
0
answers
34
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ntp + ntp loose synchronize each time in 5:00 morning
we have a very strange behavior
we have 12 Linux redhat machines - redhat 7.x
two of these VM servers are loosing the time synchronize each day at 5:00 in the morning
after we restart the chronyd , ...
- 839
1
vote
0
answers
28
views
How do I migrate a git and a Subversion repository (and possibly convert to git) to a new server?
I am building a new internal server for my company. It started with a very cobbled together svn and then we added git as that was requested. Going forward, I prefer to use only Git.
Our Git Repo:
...
- 211
0
votes
1
answer
685
views
Skip mounting of nfs after three attempts
I am using RHEL 6.5 in my company and using a file server(NFS).
I have put a mount point address to file server in the client's fstab file like this
10.9.9.25:/opt/Files /opt/Files nfs ...
1
vote
1
answer
664
views
Generate selinux policy from audit2allow
I need to upload to aws from logrotate. When the logrotate is triggered the SELinux blocking it.
The error line is
type=AVC msg=audit(1562162502.670:101127): avc: denied {
name_connect } for ...
- 173
1
vote
0
answers
18
views
On RedHat OS, I am getting different behavior on mounting NFS server
I am trying to mount nfs server using below command on different RHEL oses:
mount -t nfs4 -o "vers=3" IP:/NFS_share /NFS_share/
Whenever I tried to mount it over different RHEL 7.4 os, nfs share ...
2
votes
1
answer
5k
views
google chrome "managed by your organization" on linux
today I opened google chrome and saw this on customize and Control menu : "managed by your organization" , is that a malware sign ? if yes how can I completely remove that malware?
my os is a Linux ...
1
vote
0
answers
305
views
Docker DeviceMapper Driver not Freeing Space RHEL 7
I searched around a bit a while back and found stuff about using loop device, which we are not, and using fstrim to free space. I ended up just rebuilding my kubernetes working nodes to clear the ...
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5
votes
2
answers
3k
views
How exactly a system might break by updating glibc?
Suppose that I have a program that relies on a newer glibc version that is not available in the system via packages. And it gives:
version `GLIBC_2.xxx' not found
One solution is compiling the ...
- 441
1
vote
2
answers
5k
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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. ...
- 839
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1
answer
1k
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rhnsd service not working after upgrade from 5.0.37 to 5.0.44
I recently upgraded rhnsd package from 5.0.37 to 5.0.44 when it is in 0.37 version it used to be running as one process rhnsd.service but from 0.44 it split into two services one is rhnsd.timer and ...
1
vote
1
answer
41
views
Checking for Package Presence in RHEL Repositories When no Access to Our Subscription is Available
I am working in an air-gapped Linux network. Specifically, RHEL 6.9.
There are several points of context that need to be given before I ask my question:
We have a full, legal RHEL subscription. ...
- 1,019
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 ...
- 141
0
votes
1
answer
260
views
how to set oracle 18.3 variable environment permanently in redhat 6.9
I'm trying to set oracle variable environment in my .bashrc file, but Boy!...
export
LD_LIBRARY_PATH=/usr/lib/oracle/18.3/client64/lib:$LD_LIBRARY_PATH
/usr/lib/oracle/18.3/client64/bin/...
- 101
1
vote
1
answer
2k
views
Can't create extension orafce in Postgresql
my os is redhat 7.3 and I am trying to install orafce to postgresql with psql version 9.2 and server version 9.6. Firstly, i try to install via the script orafce downloaded on github but after reading ...
- 11
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votes
1
answer
9k
views
-bash: dev/null: No such file or directory - at startup
when you run the OS gives this error.The file exists, but it is empty. I tried this command, but nothing changes. sudo mknod -m 666 /dev/null c 1 3
0
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0
answers
919
views
In AWS, how to set the ec2-user password of a linux vm?
I have created a RHEL VM in AWS. I can SSH to it with my private key. After the SSH connection, when I try to set a password to my default "ec2-user" it is asking me for a password? But I don't know ...
- 101
1
vote
1
answer
2k
views
semanage command not working in RHEL 8 on AWS
I am trying to reconfigure the default port apache uses on RedHat Enterprise Linux 8 by usine the semanage command. When I try to run the semanage command, I get the following error:
-bash: semanage: ...
- 113
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votes
1
answer
287
views
AWX Ansible - Python requirement for endpoint nodes
I have setup my inventory in AWX and I am trying to do a simple ping command. I am getting the following error:
SSH password:
SUDO password[defaults to SSH password]:
192.168.168.21 | FAILED! => ...
3
votes
1
answer
599
views
How does the Docker daemon know about the available hardware resources?
We are running Docker on a RedHat VM on a VMWare hypervisor. When we added more virtual cores (vCPUs) to the VM the RedHat sees the additional resources and can address it but not the containers ...
0
votes
0
answers
520
views
gz file corrupted while transfer
I have huge gz files generated in linux machines and everyday night there is a script running to move files to remote network storage which is also linux host with terabytes data. The problem is, I am ...
1
vote
1
answer
3k
views
Too many open file descriptors RHEL 7.4
I have migrated to RHEL 7.4 from 6.9 and same application which used to run fine on 6.9 is running into "Too many open files" issue.
ulimits are set to same values across both environments. upon ...
2
votes
0
answers
42
views
auto mount by service + service not mount the folder automatically
we create the following service on redhat version 7.2
more nfsshare.mount
[Unit]
Description=nfs mount script
Requires=network-online.target
After=network-online.service
[Mount]
What=...
- 839
1
vote
1
answer
131
views
Why does yum update says it is "Installing" one of the packages?
When I run yum update, it lists the packages that it will upgrade. For one of the packages, kernel, it lists it under the "Installing" header. All other packages are listed under the "Upgrading" ...
- 989
1
vote
1
answer
2k
views
How to copy gnote(s) from a computer to another one on Red Hat?
My organization requires me to switch to a new remote machine. So I am in the process of transferring my data.
I'd like to transfer my gnote(s) but on disk I can only find the settings:
.gconf-lts-...
0
votes
1
answer
43
views
GUI can't start while redhat6 is lcoked
We are on redhat6. I've got the command line to start a GUI which I want to be run before I come in for the day, so that my working setup is loaded by that time (sadly I've no control over the fact ...
1
vote
0
answers
417
views
Installing tensorflow-model-server on centos/rhel
After hours of failed attempts I have come here.
I need to install tensorflow-model-server on a rhel box but the instructions are lacking and the manual compile failed.
These are the instructions for ...
- 11
1
vote
0
answers
1k
views
Tiger VNC service will not start
Hello I have installed Tiger VNC using RPM tigervnc-server-1.8.0-1.el7.x86_64.rpm. I am running Red Hat Enterprise Linux Server release 7.4 (Maipo). I am getting an error when trying to start the ...
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0
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38
views
Copy large file throttles after reaching 20GB on VMware guest
we've a VMware guest running RHEL7 experienced performance issue:
to copy a 'large' file (20GB plus), it takes 10+ seconds to have around 20GB data copied, then the copy process is slowed down a lot ...
- 11
1
vote
0
answers
322
views
OpenShift "Build failed because of post commit hook." on Build
I have been trying to build and deploy a MEAN stack application using OpenShift. I have applied the template Node.js and MongoDB when I created my project. I cannot seem to find any resources to help ...
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2
votes
1
answer
6k
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Installing Vim With Python 3 Support Linux
This seems to be a relatively common problem but I've tried a variety of approaches and have not been able to compile Vim from source. I recently got an AWS EC2 Linux instance which I've been ...
- 143
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1
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546
views
export mpicc in a bash script (for OpenFoam)
I am not able to execute this line via script properly:
export PATH=/usr/lib64/openmpi/bin:$PATH;
or writing it to a file and sourcing the file:
echo "export PATH=/usr/lib64/openmpi/bin:$$PATH" >...
- 13
1
vote
1
answer
863
views
How to remove traces of a deleted user
I have been tasked with removing departed employees' local *nix accounts. In almost all cases, userdel -r <username> works like a charm. However there are a few cases where the user in question ...
- 111
2
votes
0
answers
2k
views
Pacemaker High availability on dynamic NFS client mount point
I am trying to setup a Redhat cluster with N + 1 (N=active server) which has a standby server for HA.
Each active server will have the same application path mounted on NFS.
For example :
NFS server ...
1
vote
2
answers
779
views
sleep() never terminates on Linux
I wrote a piece of code in C, using sleep(0.01);.
For some reason the machine froze, and according to the backtrace it seems that it hangs on nanosleep() or __kernel_vsyscall ().
(gdb) bt
#0 ...
- 23
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votes
1
answer
1k
views
Correct syntax in a script to append to .bashrc for root
I'm trying to script some things and cannot figure out the correct syntax to append to root's .bashrc file. For this script, I'm just trying to get it to display the hostname in red when we ssh into ...
- 33
1
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0
answers
171
views
Not able run Ansible HTPASSWD playbook for creating user's, because FIPS is enabled :-(
I am trying to run a Ansible playbook for adding few user's to HTPASSWD, Since FIPS(Federal Information Processing Standards) is enabled on it, I am getting error saying FIPS is enabled please ...
- 11
0
votes
1
answer
274
views
Java application requiring LD_PRELOAD setting due to signal chaining says LD_PRELOAD is null
I am troubleshooting the failure of a larger java program on a server. However, I have been able to reproduce the problem with a super basic java program that just outputs the environment variable ...
- 1
0
votes
0
answers
226
views
Excessive use of RAM by Oracle HTTP Server
I have a problem related to an Oracle HTTP Server (based on Apache) that continues to consume memory up to using all the available RAM.
Do you have any advice on how to identify the problem? I'm in ...
- 1
1
vote
0
answers
347
views
Set an Environment Variable in Apache and System
I'd like to set an environment variable in both system and httpd.
I set the variable, let's say IMPORTANT_FOLDER = /MY/PATH, in /etc/profile and it works for all system users.
What i want to do ...
- 11