oneinstack is a free hosting management software available at https://oneinstack.com/ Documentation available at https://oneinstack.com/docs/lampstack-image-guide-en/ To find MySQL root password, run
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cd /root/oneinstack grep dbrootpwd options.conf |
Nginx configuration files
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/usr/local/nginx/conf/vhost |
Restart Nginx
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systemctl restart nginx |
See Hosting Control Panels […]
To benchmark server with GeekBench, you can run
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wget https://raw.githubusercontent.com/serverok/server-setup/master/benchmark/geekbench-5.sh bash ./geekbench-5.sh |
You can create an account on https://browser.geekbench.com and keep all your benchmaks in one place. Here is my Geekbanch benchmarks https://browser.geekbench.com/user/55314 If you get error installing, you may need to install depency with
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yum install libgcc.i386 libstdc++.i386 libgcc.i686 libstdc++.i686 -y |
See Benchmark […]
aaPanel is a free hosting control panel written in Python. https://www.aapanel.com To reload nginx, run
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/www/server/nginx/sbin/nginx -s reload |
Nginx configuration file location
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/www/server/nginx/conf/nginx.conf /www/server/panel/vhost/nginx/ |
See Hosting Control Panel […]
Linux Run Command as another user […]
Linux Run Command as another user usermod […]
To run command as another user on Linux, you can use
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su USER_NAME_HERE -s /bin/bash -c COMMAND_HERE |
Or
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sudo -u USER_NAME_HERE COMMAND_HERE |
Or
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runuser -l USER_NAME_HERE -c 'COMMAND_HERE' |
See sudo […]
You can find process id for a running program with command
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pidof BINARY_NAME_HERE |
Example
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boby@sok-01:~$ pidof gedit 22057 boby@sok-01:~$ ps aux | grep gedit boby 22057 4.4 0.7 822760 60280 ? Sl 14:29 0:00 /usr/bin/gedit --gapplication-service boby 22071 0.0 0.0 8904 644 pts/0 S+ 14:29 0:00 grep --color=auto gedit boby@sok-01:~$ |
We can use pidof command in bash script to find if a program is running or not
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if [ "$(pidof chrome)" ] then echo "chrome already running." fi |
See bash […]
On a CentOS Web Panel (CWP) server, control panel stopped working after installing SSL certficate for hostname. When starting cwpsrv service, i get following error.
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[root@nvme ~]# systemctl start cwpsrv Job for cwpsrv.service failed because the control process exited with error code. See "systemctl status cwpsrv.service" and "journalctl -xe" for details. [root@nvme ~]# systemctl status cwpsrv.service ● cwpsrv.service - CentOS Web Panel service (daemon) Loaded: loaded (/usr/lib/systemd/system/cwpsrv.service; enabled; vendor preset: disabled) Active: activating (auto-restart) (Result: exit-code) since Wed 2021-02-10 04:51:53 CET; 1s ago Process: 3779 ExecStartPre=/usr/local/cwpsrv/bin/cwpsrv -t (code=exited, status=1/FAILURE) Feb 10 04:51:53 nvme.ssdnodo.com systemd[1]: Failed to start CentOS Web Panel service (daemon). Feb 10 04:51:53 nvme.ssdnodo.com systemd[1]: Unit cwpsrv.service entered failed state. Feb 10 04:51:53 nvme.ssdnodo.com systemd[1]: cwpsrv.service failed. [root@nvme ~]# /usr/local/cwpsrv/bin/cwpsrv -t cwpsrv: [emerg] annot load certificate key "/etc/pki/tls/private/hostname.key": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/pki/tls/private/hostname.key','r') error:2006D080:BIO routines:BIO_new_file:no such file) cwpsrv:configuration file /usr/local/cwpsrv/conf/cwpsrv.conf test failed [root@nvme ~]# |
To fix this, i run
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/usr/local/cwpsrv/htdocs/resources/scripts/generate_hostname_ssl |
This generated the self signed SSL for hostname. After this CWP control panel started working. Apache still was down, fixed it by removing […]
On a web server with Newrelic APM installed, graph stopped showing new data. On checking the newrelic log file, i get following error
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root@new-website-2:~# tail -f /var/log/newrelic/php_agent.log 2021-02-08 17:21:27.453 +0000 (680439 680439) warning: daemon connect(fd=13 uds=@newrelic) returned -1 errno=ECONNREFUSED. Failed to connect to the newrelic-daemon. Please make sure that there is a properly configured newrelic-daemon running. For additional assistance, please see: https://newrelic.com/docs/php/newrelic-daemon-startup-modes |
This is because newrelic-daemon stopped working. To auto restart newrelic-daemon if it crash, do the following
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mkdir -p /usr/serverok vi /usr/serverok/newrelic |
Add following to the file
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#!/bin/bash # Author: ServerOK # Web: https://serverok.in/auto-restart-newrelic-daemon CURRENT_STATUS="$(/etc/init.d/newrelic-daemon status)" TIME_STAMP="$(date "+%Y-%m-%d %H:%M:%S")" if [[ ! "${CURRENT_STATUS}" =~ "newrelic-daemon is running" ]] then /etc/init.d/newrelic-daemon start echo -e "${TIME_STAMP} newrelic-daemon down\n" fi |
Make the script executable
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chmod 755 /usr/serverok/newrelic |
Create a cronjob […]
To check if a folder is empty of not, you can use
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if [ "$(ls -A /home/boby/1/ )" ] then echo "Files found" else echo 'No files found' fi |
If you want to reverse the checking, you can use !
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if [ ! "$(ls -A /home/boby/1/ )" ] then echo "No files found" else echo 'Files found.' fi |
See bash […]