Questions tagged [centos]
CentOS is a free (as in beer and speech) GNU/Linux distribution that is community driven and based on source code released from RedHat.
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Unknown kernel command line parameters "BOOT_IMAGE=/vmlinuz-5.18.11-1.el7.elrepo.x86_64", will be passed to user space
On CentOS 7, after upgrading the kernel to version 5.18.11, I observed the below message in /var/log/messages:
Unknown kernel command line parameters "BOOT_IMAGE=/vmlinuz-5.18.11-1.el7.elrepo....
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installing terraform on CentOS
How do I get my terrfaform installation working on centos properly?
The only way for me to run terraform commands is if I add the path to the terraform executable.
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2
answers
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how to add tomcat to tomcat.service for systemctl startup
I want to write a systemctl deamon for my tomcat installation so I can start tomcat using below command
systemctl start tomcat.
Right now I am using the startup.sh script to start the Tomcat server. ...
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Lost LVM boot when power supply died
I have a CentOS system (running server, no desktop). A few weeks ago my power supply died, after replacing it the system won't boot any more.. I am not sure which version of CentOS it has, I believe ...
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Redis failed every few hours
I have a problem in redis, Each 18-30 hour it failed and I should restart it manually to run it again.
Our server have 1 wordpress website.
Redis version: 5.0.3
OS: CentOS Linux release 8.3.2011
...
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3
answers
386
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Allow only a list of IP's on iptables
I have an apache server with wordpress installed and I need to determine just a few IP's that will have access to the website (I have a list of IP's)... what would be the most effective way to do this?...
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centos 7 php https port 443 Connection refused
centos 7 php https port 443 Connection refused
i try to open port 443 https on my centos vps
i have open port in firewall-cmd
but on i open url https port 443
i have error Connection refused
firewall-...
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661
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pam radius bypass same local user (exception user)
Pam Radius login works with the following configuration.
However, it would be necessary for some users to perform local authentication. How can I solve this?
[xxxxxxxxxxx ~]# cat /etc/pam.d/sshd
#%PAM-...
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1
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0
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265
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Datadog custom metrics from app (docker container) inside host
I have a datadog agent in my host machine, CentOS.
I have a nodeJS application, where I want to send custom metrics from it.
Config from app:
var StatsD = require('hot-shots');
var dogstatsd = new ...
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1
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59
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How to deduce remote location of RPM that has been installed?
Suppose I had the following entries in /var/log/dnf.log:
elfutils-default-yama-scope noarch 0.185-1.el8 baseos 49 k
elfutils-devel ...
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2k
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Azure BLOB Download is very slow\inconsistent from a Linux Host (CentOS 7)
I was getting reports that "downloads from Azure are slow" from one of our datacenters, so to recreate I've hosted my own BLOB storage and gave it a go. All hosts are in the same subnet, ...
0
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1
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123
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iptables wont let me connect to mysql from remote server [duplicate]
I have 2 servers, DB_server (1.1.1.1) and app_server (2.2.2.2)
created a user on DB_server for app_server (with 2.2.2.2 as hostname)
But I am not able to connect from app_server to db_server.
When I ...
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2
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2
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Mapping Linux users/groups to Windows 2019 NFS Share
I have a Windows Server 2019 machine and a CentOS 8 machine on the same network. The CentOS server is hosting a webapp that uses files from the Windows machine.
To read these files, I had set up a ...
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1
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How to recover from the GRUB losing its entries and faced with only "grub> _" at boot?
I performed a system upgrade from CentOS 7 to AlmaLinux 8 rather successfully (as noted here). During the process something strange happened and GRUB lost its boot entries entirely and my limited ...
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433
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How to alter firewall (iptables) log rules such that they stop flooding the primary console on AlmaLinux 8?
I have a constant deluge of firewall blocks showing up on my console in AlmaLinux 8:
How do you modify iptables rules / settings so as to disable these from showing up on the primary console and to ...
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FreeIPA migrate the current NFSv4 storing home directories to another server
I have a FreeIPA set-up that uses NFSv4 to store users' home directories. NFS is running on the same physical server as the FreeIPA. CentOS btw. I'd like to move the NFS server on a new machine and ...
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2
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672
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How do I install PHP 5.5 on a new version of CentOS or Amazon Linux or Redhat or Ubuntu?
I just joined a new company. I've been asked to build a CI/CD pipeline for a Laravel app. It is very fragile. It was built for PHP 5.5 and it breaks when they've tried to upgrade to 5.6 or 7. They don'...
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2
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247
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Firewall not keeping relay attempts from reaching postfix
I have a centos-based vps managed with webmin and every once in a while I get a few hundred emails like this one:
From: MAILER-DAEMON@mail.<redacted>.com
To: postmaster@<redacted>.com
...
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0
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1
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489
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folder size not corresponding to files inside
I have a problem! My server (Centos OS WHM) is out of space. Browse directories and naturally the biggest directory is /home/userfolder/.
Using the du -sch * command, I can check the size 99GB.
[home]#...
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How to configure a redirection just for visitors coming from a specific address?
I've been handed a website using cloudflare workers to redirect a wordpress blog hosted in a subdomain to a subdirectory - for the most part it's a copypaste from this cloudflare article plus an if-...
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2
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How to increase the size for /dev/mapper/centos-root without data loss
I am running a virtual server, and the provider added extra diskspace. However, I need to somehow increase (merge) the existing disk (has data) and the new disk (empty).
how to increase the size for /...
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1
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How to configure rsyslog to send multiple logs to a remote server and save them as individual files?
I have some log files inside a directory called log
ls -l /var/log/
org1_app.log org2_app.log org1_perf.log org2_perf.log ...
Now I set up an rsyslog client on the host server. Here is the ...
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10k
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Curl "peer's certificate issuer is not recognized" error when attempting to communicate between two servers
I have two servers A and B that host websites that work fine in a browser with https. The lock icon in the browsers show active and trusted SSL certificates.
I'm trying to run curl so that server A ...
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2
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1
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288
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Postfix / OpenDKIM config on Centos8
I've setup Postfix with Dovecot as an integrated mail service for my SaaS app, it worked great as an inbox. The issue started when I started to send emails, it was not signed so I went ahead and ...
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1
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425
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How can stop sftp download and upload a specific file in the root user and cat command
how to stop sftp root user transfir and donload for specific file
linux centos 7
I have a text file located in the root folder
But . I want to give someone a root user password and I need to protect ...
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1
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525
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How to boot custom .iso from CentOs 7 [closed]
I have a custom Windows 10 .iso mounted. I want to boot that .iso so I can overwrite my current VPS's OS (CentOs 7).
I can't get to the boot screen because when I'm connecting via terminal, ssh will ...
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725
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fail2ban not creating jails in CentOS
I'm trying to create a jail in Fail2Ban to protect a Asterisk PBX.
I already did as suggested and made a copy of jail.conf named jail.local. In jail.local, I set up a asterisk jail as follows:
[...
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On RHEL/CentOS/Oracle Linux installer Software Selection screen, what do the packages/environments actually install?
When installing Oracle Linux, at one point you need to choose the software. What actual packages are actually installed when you select Server, Minimal Install, and the subpackages such as Standard or ...
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9k
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How to resize partition to maximum size on Debian 8?
My question is how to resize partition on Debian 8 without losing any data?
I have 90 GB partition but my disk has 150 GB space on VPS server, so 50 GB is free and I want to add this 50 GB without ...
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1
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Not able to backup of postgres DB from DBeaver
Hope you are doing great.
We have postgres install on centos server and accessing it through DBeaver from Ubuntu machine.
Whenever we try to take backup of Database it is giving error as "Native ...
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645
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How to preserve file access time when using `chmod`
I would like to know how can I preserve file access time ("atime") when using "chmod". Sometimes I need to use the code below:
chmod -R 777 /directory
It works fine, however all ...
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177
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Logs are not shifting to new directory after log rotation
I am facing issue. We have setup log forwarder for sentinel and logs are frequently coming on /var/log/messages.
Actual problem is
i have created one script for log rotation and placed it under /etc/...
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5k
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Linux centos firewall commands not found
firewalld-cmd--add-service=mysql--zone=public--permanent
firewalld-cmd--add-service=http--zone=public--permanent
firewalld-cmd--add-port=80/tcp--zone=public--permanent
firewalld-cmd--reload
lamps: ...
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0
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318
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What would cause my IPv6 connectivity to keep dying, with a reboot fixing it each time?
Centos 8 Stream
When I first boot my server up, ipv6 works fine. I can ping another ipv6 address without issue.
A few (10?) minutes later, it stops working. Rebooting the box fixes it, but I can't ...
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Redirect all access on IP address to domain name need to click proceed to redirect
I have this config in my apache:
<VirtualHost *:80>
ServerName default
<Location />
Redirect / https://domain.name
</Location>
</VirtualHost>
<...
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0
answers
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Public Cloud Virtual Machine - Restrict Uninstalling Packages
During the evaluation on public cloud(VMs) security product, Below question came into my mind. I would like to request your kind consultancy to fix this challenge
Requirement: Install a security agent ...
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php files downloading instead of executing nginx
I am working on a project for a school assignment.
We have to make a webserver with wordpress on it.
There are some stuff we had to change think of changing the user of nginx and mariadb to webuser ...
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1k
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I can't mount windows folder in centos through mount -t cifs
everyone!
I have windows folder. This folder is available from my windows 10 OS.
At the server with Centos 8 I did:
sudo mkdir /mnt/sbsp
sudo mount -t cifs //bk.local/BurgerKing/NetDisks/K/Бухгалтерия/...
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1
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572
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Does docker need Apache to run application
I am installing wordpress via docker on centos7 and would likely install other softwares also via docker.do i need Apache to run the Application or docker can run without Apache
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Centos - Unbboud and URIBL_BLOCKED blacklist
I am facing the following problem:
My websites have contact forms. People reach out to me via contact form. I receive 1 email after every contact form sent.
Since about 1 week Ms Outlook is marking my ...
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Where can I set additional conf files for NetworkManager
I am using Linode and every single time I boot my server, Linode (cloud provider) ovewrites the file below:
/etc/sysconfig/network-scripts/ifcfg-eth0
This is well documented and expected in order to ...
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Unknown process on Centos 7 VPS "sysnetd" using lots of cpu
So I cant seem to find any information ANYWHERE on what this process, "sysnetd", does. I've run LSOF etc but nothing seems to provide any info I know what to do with. The /proc/pid folder ...
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rsyslog is running, but nothing is output
nice to meet you.
Suddenly nothing is being output in /var/log/messages, cron, secure, etc...
I have not restarted rsyslog or modified /etc/rsyslog.conf, so I do not know why.
Even after rebooting, ...
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xrdp fails from Windows 11 to CentOS Stream 9
I am trying to take a remote desktop connection from Windows 11 to CentOS Stream 9 running on Hyper V.
Below is the error msg:
Link to view xrdp.ini
Thanks!
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How to setup multiple vps in one hardware
I purchase a rack server hardware with 64GB ram now i want to create 8*8GB VPS so how can i do that.
I have 1 internet connection and 8 static IP from ISP, Now problem is how can i setup port ...
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368
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CentOS: How to keep previous service state on reboot
Is there unit setting I can change so a service will stay stopped after reboot if it was stopped before reboot?
Currently service starts with OS startup even if it was stopped
CentOS9
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How to enable http/2 from a Centos Package/yum?
I'm running the following version of Apache on Centos 7:
httpd.x86_64 2.4.6-97.el7.centos.5 @updates
httpd-tools.x86_64 2.4.6-97.el7.centos.5 ...
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266
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How to block all traffic on a VM except host IP?
I am running a Vagrant VM and am trying to have a network isolated mode. Since disabling or changing anything with the default NAT interface breaks Vagrant I decided to block ALL traffic inside the ...
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1
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598
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Stopping DRBD so I can run some tests with a VM
We have two servers I inherited, both running DRBD and each then running KVM virtual machines.
I would love to stop a VM running on server1, and bring up just the 1 VM on server2 for some tests. ...
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8k
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Docker can't pull images behind proxy server
am using docker version 20.10.14 with CentOS Linux 7, i just installed docker and set up the proxy settings in /usr/lib/systemd/system/docker.service and my proxy settings are
Environment="...
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