All Questions
2,984
questions
0
votes
0
answers
191
views
Extract option missing from Files (Nautilus) after upgrade/conversion to AlmaLinux
I recently upgraded and converted my server from Centos 7 to AlmaLinux 8 via leapp, and after upgrading, I noticed that in the default Gnome3 file manager (nautilus), under Centos 7 I could right lick ...
- 99
1
vote
1
answer
38
views
Regarding the issue of degraded query performance after upgrading bind9
I would like to ask if anyone has encountered a problem where query performance deteriorates after upgrading the bind version. Here are the performance test results for versions 9.16.49, 9.18.25, and ...
- 11
0
votes
0
answers
22
views
Disconnect NIS authentication on SVN server
I have SVN configured to authenticate against NIS, also not sure how it authenticates against NIS.
I want to disconnect the server from NIS and convert it to local authentication.
How this can be ...
- 21
1
vote
1
answer
97
views
Dual Xeon E5-2683v4 128GB 2x1TB SSD with 10 Wordpress Sites So Slow
I have 10 wordpress sites that is joined into a dedicated server. The main problem it gets slower than before. I have no idea why. I am trying to use top
top - 04:05:52 up 123 days, 2:38, 1 user, ...
- 113
0
votes
1
answer
185
views
Convert IPv6 from the compressed/short format to expanded format
When I execute the command ip address show my server shows hundreds of IPv6 that I have assigned to it. It works great, however the leading and trailing zeros are omitted from the IP addresses, and ...
- 316
0
votes
1
answer
355
views
Syslog-ng Syslog Format to JSON Format are there pre-requisite?
My first time posting to Stack Overflow. I apologize if I am re-asking a question. I tried to search but nothing is really clear about what I'm trying to understand.
Do I need to configure additional ...
0
votes
1
answer
177
views
Need Assistance: XCP-NG Fails to Boot Up After Disk Error
I am seeking assistance with an issue I am facing in my XCP-NG configuration on an HPE DL360 G7 server. Despite using this server for about a year without any problems, I recently encountered an issue ...
- 1
0
votes
0
answers
499
views
"none of the providers can be installed" when I ran "sudo yum -y install nvidia-driver-latest-dkms"
I want to install NVIDIA Driver. I ran sudo yum -y install nvidia-driver-latest-dkms, but I got the following problem:
Error: Problem: package
nvidia-driver-latest-dkms-3:545.23.08-1.el7.x86_64 ...
- 29
0
votes
0
answers
54
views
Linux server management debian 10 and centos dhcp service host-name based Client Classing
I want to allocate a client's IP address based on the host-name provided by the client, but the results are often unpredictable.
I have tried to imitate the Client Classing in dhcpd.conf(5) by ...
0
votes
0
answers
32
views
Configure a server to act as an internet gateway [duplicate]
I have two virtual servers hosted in Hetzner Cloud. The first server (let's call it Access Server) has a Public IP assigned and has internet access. The second server does not has a public IP assigned ...
2
votes
0
answers
127
views
Fix kickstart drift between CentOS 8 Stream behavior and CentOS 9 Stream behavior
I'm facing a weird situation on one of my server on the provisioning process.
Here is the machine HW Model:
HPE Proliant DL365 Gen 10 Plus with 6x 1.9TB SATA 6GBps SSD disks.
What's going on:
When I'm ...
- 975
0
votes
0
answers
55
views
How to initialize cockpit on CentOS8?
I am trying to access my public IP of the EC2- box on port 9090 to access centOS8 cockpit but I am unable to get to my centOS8 cockpit.
My security group from the server is Security group
This is what ...
2
votes
1
answer
1k
views
Samba share not accessible to client in the same network
Two servers in the same network, a
Windows server (client), and a
Linux server (samba share host)
The shared folder can be seen by the client but not accessed. See below for the configuration:
smb....
- 23
0
votes
1
answer
93
views
Map dev notation to logical volume name
I need to figure out what dm-2 or dm-0, etc. is (this notation is found in dmesg notices, sysstat reports, etc.) and lsblk is not installed
I find lvdisplay output a little bit confusing.
Can someone ...
- 28
3
votes
1
answer
930
views
Cross domain authentication with transitive forest trust for linux
I have two domains -- one for dev and one for corp.
I can join a Windows machine to the dev domain and login as a corp user because of the transitive forest trust. I can join a Linux machine to the ...
0
votes
0
answers
145
views
Connecting to another server by bash script
On server A I have a script in bash with a conditional. If the conditional is true, a connection is made to server B and httpd is reloaded. The script runs in cron and everything works correct.
I don'...
- 1
0
votes
0
answers
318
views
Centos show me "Cannot find a valid baseurl for repo: base/7/x86_64"
Hi, i have a issue, when i type in Centos 7 "yum update" show me next error
Loading mirror speeds from cached hostfile
One of the configured repositories failed (Unknown),
and yum doesn't ...
- 103
0
votes
1
answer
689
views
Non-valid paths in "multipath -ll" output
I see paths that are no longer valid along with valid ones. How do I prevent them showing up in the output. I expect four valid paths.
The volume was earlier exported with LUN 13 and later 14 which ...
- 121
-1
votes
1
answer
660
views
What could be causing PowerMTA not to forward emails over port 465 SSL...?
We have a PowerMTA server that receives incoming e-mail. and forward it to external SMTP server that's not running PowerMTA i tried to do it using port 587 and port 25 both working fine and emails ...
-1
votes
1
answer
58
views
Linux Hostname - SystemD Service File Causing NetworkManager to Fail on Boot [closed]
systemd[1]: NetworkManager-wait-online.service: Job nis-domainname.service/start deleted to break ordering cycle starting with NetworkManager-wait-online.service/start
- 435
-2
votes
1
answer
340
views
Updating Centos 8.0 to Centos 8.3
I need your expert help on how can I update Centos 8.0 to Centos 8.3. I have installed Centos 8.0 using the standard option without GUI. It's a requirement at work. Please help
Thanks & regards,
0
votes
0
answers
553
views
I have a new server but IO Speed is terrible based on FIO results
I ordered a new server because I have to move to higher performance server. However, this new server is totally awful. I tried to get the benchmark by using fio here is the result.
[root@s206716 ~]# ...
1
vote
1
answer
1k
views
High process memory usage (VmRSS) on rocky 8 vs. centos 7.7 for essentially everything
We're migrating some servers from centos 7.7ish to Rocky linux 8, and we're finding just about every process is using 20-50% more memory, causing machines to lock up.
For example, sh on centos:
# sh -...
- 61
0
votes
1
answer
7k
views
HTTP request sent, awaiting response... 404 Not Found
Little Background:
My main OS is windows 10. I am using vmware workstation pro. I've installed centos 7 on it.
When I try to install either google chrome or mysql,I am getting the above mentioned ...
- 101
0
votes
0
answers
430
views
How to diagnose out of space errors?
Twice I've noticed out of space errors in my php app and both times I've received the error "No space left on device while writing config" when attempting to login via ssh to troubleshoot ...
- 113
0
votes
0
answers
286
views
How to resolve NXDOMAIN in centos using bind/named package
I am trying to configure DNS server on centos 7. I am following this link.
when I run dig -x 192.168.40.107 I don't receive any answers record. here is output
; <<>> DiG 9.11.4-P2-RedHat-9....
- 101
0
votes
0
answers
120
views
I cannot get environment variable from apache
On a Centos 8, I added a SetEnv into my VirtualHost conf:
<VirtualHost *:XXXX>
Alias /static/ /opt/industrialisation/xxxx/xxxx/xxxx/
<Directory /opt/industrialisation/xxx/xxxx/>
...
- 163
0
votes
0
answers
1k
views
xfs corruption metadata after reboot
I had a problem on a RAID1 with 4 disks. We replaced the faulty disk and restarted the server, the rebuild was done, two linux centos 7 machines did not come up accusing error of xfs corruption. Other ...
- 31
0
votes
2
answers
674
views
df -h --total command showing wrong total disk size
I have 512GB attached to my linux centos 7.9 server I'm trying to know how much total disk size used from overall disk size from inside the server
I tried to use df -h --total command to show the ...
0
votes
1
answer
717
views
Centos 7 dhcp server not responding to UEFI PXE DISCOVER
I'm trying to set up a Centos 7 server as a dhcp server for PXE (UEFI). I'be tried several changes to the dhcpd.conf file, but nothing seems to make a difference.
dhcpd.conf:
allow booting;
allow ...
0
votes
2
answers
986
views
List all tags in SVN repo
If I run svnlook tree -N /path I get a list of the top level folders in the SVN repo like this:
/
tags/
trunk/
But what I need to see is a list of the current tags. I know I can turn off -N but ...
- 226
0
votes
0
answers
3k
views
Centos 7.0 can't start network service
I get this error when I start network service
Job for network.service failed because the control process
exited with error code. See "systemctl status network.service"
and "...
0
votes
0
answers
2k
views
failed to create bus connection: no such file or directory
Virtualbox with ubuntu 22.04
[root@container www]# systemctl start NetworkManager
Failed to get D-Bus connection: No such file or directory
Virtualbox with ubuntu 20.04
docker run --privileged -d -...
-1
votes
1
answer
890
views
PermitRootLogin set to no but can still use root on Centos Stream 9
Im following an RHCSA training course and to disable root I need to set PermitRootLogin to no in the /etc/ssh/sshd_config file and restart sshd using systemctl. I've done all this and can still login ...
1
vote
0
answers
433
views
Centos 7 CVE-2022-42920 missing security update
Since a couple of months we are using a vulnerability scanner (Rapid 7) which is complaining about the bcel package being vulnerable. Red Hat released an update package, but hasn't found it's way to ...
- 111
1
vote
1
answer
725
views
how and why container and its image is getting deleted automatically?
I have a zeppelin container running on centos7 and on every couple of days the container and its image is getting deleted automatically, and every time i have to to docker compose up -d.
here is the ...
0
votes
2
answers
2k
views
Stunnel Server On CentOS 7 - TLS options: 0x2100000 (+0x0, -0x0) Error
I am using CentOS Linux release v7.9.2009 (Core) with latest update.
First of all i installed latest version of OpenSSL there.
Here is the commands for that installation :
cd ~
wget https://www....
- 15
0
votes
2
answers
377
views
Unable to delete file in Centos
I can't remove certain file in Linux. Here the example:
[root@HBL01 home]# ls -ltira index.php
393591 -r--r--r-- 1 apache apache 14335 Nov 23 2021 index.php
[root@HBL01 home]# rm -rf index.php
...
- 101
0
votes
2
answers
1k
views
Couldn't resolve host name for http://vault.centos.org/centos/8/AppStream/
Every time I run a command on my virtual server, I get the following error centos8
[root@servers03 ~]# dnf install epel-release CentOS Linux 8 -
AppStream 0....
- 1
0
votes
1
answer
148
views
How to configure a /27 subnet on vlan Centos 7
I have a dedicated server running Centos 7.
I purchased a /27 subnet from my hosting provider. They said:
"Your /27 subnet should be acceptable over vlan-interface with tag 18."
I asked them ...
-1
votes
1
answer
52
views
Linux analyze and monitoring log tool?
I have a server using OS centos-7, but sometimes my server got slow with some processes. I want to check which service or process makes the system slow. how to check the percentage of CPU, ram, or ...
- 1
2
votes
1
answer
3k
views
Centos7 machine refusing connection to port
I'm trying to make sure that the machine is accepting tcp connections on port 8245, however I am unable to connect.
When I try from an external machine:
telnet myhostname.com 8245
I get:
Unable to ...
- 131
0
votes
1
answer
589
views
Delete files from /tmp/ CentOS6
I'm running Centos6 and inside mt /tmp/ folder I see these files
drwxr-xr-x. 2 root root 4096 Jan 14 2016 fileinstall-1059639640221211034
drwxr-xr-x. 2 root root 4096 Jan 30 2021 ...
0
votes
0
answers
239
views
Kickstart for CentOS9
Is there a kickstart feature in CentOS9?
When I try to install system-config-kickstart I am getting the following message
No match for argument: system-config-kickstart
Error: Unable to find a match: ...
0
votes
1
answer
293
views
cant' delete user with userid 502, 503 and on CentOS 6
I have a CentOS VM that shows the list of users like this:
drwx------. 2 504 504 4096 Dec 10 2000 username
So if I try to run the userdeel command I got a message saying that the user does not ...
0
votes
0
answers
2k
views
MDADM Nvme raid Slower than traditional HDD, need enlightenment
I have setup server about 20 days ago with new nvme, before setup raid mdadm the two Nvme samsung 980 pro 1TB i test bench have IO speed average 1.5G/s each nvme, but after creating raid 1, IO nvme ...
- 1
0
votes
2
answers
643
views
Ensure a user can only SSH to the port they have been designated
CentOS 6
I want port 22 to be used for normal SSH access and for port 8822 to be used for jailed SFTP.
Here's my sshd_config configuration
Port 22
Port 8822
PermitRootLogin no
PubkeyAuthentication no
...
- 359
0
votes
0
answers
70
views
/opt/BitDefender/bin/notify_script.sh failed: exit code 2 on CentOS 6
I'm running CentOS 6.10 and everytime that I run a command I got this message on the console
/opt/BitDefender/bin/notify_script.sh failed: exit code 2
I do not have Bitdefender install so I guess it's ...
0
votes
1
answer
1k
views
Cannot execute binary file: Exec format error on Centos
I'm trying to install yq on CentOS 9 on hetzner.
wget https://github.com/mikefarah/yq/releases/download/v4.27.5/yq_linux_arm64 && chmod +x yq_linux_arm64 && ./yq_linux_arm64
The ...
- 193
0
votes
1
answer
892
views
cannot open /etc/shadow message on CentOS 6.10
When I try to delete a user or add a user to the wheel group I got this message
[root@server]# userdel --remove username
userdel: cannot open /etc/shadow
[root@server]#
I'm running:
[root@server]# ...