oneinstack is a free hosting management software available at
Documentation available at
https://oneinstack.com/docs/lampstack-image-guide-en/
To find MySQL root password, run
cd /root/oneinstack grep dbrootpwd options.conf
Nginx configuration files
/usr/local/nginx/conf/vhost
Restart Nginx
systemctl restart nginx
To benchmark a server with GeekBench, you can run
wget https://raw.githubusercontent.com/serverok/server-setup/master/benchmark/geekbench-6.sh
bash ./geekbench-6.shYou can create an account on https://browser.geekbench.com and keep all your benchmarks in one place. Here are my Geekbanch benchmarks
https://browser.geekbench.com/user/55314
If you get an error installing, you may need to install dependency with
yum install libgcc.i386 libstdc++.i386 libgcc.i686 libstdc++.i686 -yHow to Benchmark Cpanel server
See Benchmark
aaPanel is a free hosting control panel written in Python.
https://www.aapanel.com/new/index.html
install php redis extension in aaPanel
Install aaPanel
wget -O install.sh http://www.aapanel.com/script/install-ubuntu_6.0_en.sh && sudo bash install.sh forum
Login url
http://IP_ADDR:9514/login
To reload nginx, run
/www/server/nginx/sbin/nginx -s reload
Nginx configuration file location
/www/server/nginx/conf/nginx.conf /www/server/panel/vhost/nginx/
Web site files in
/www/wwwroot/
Linux Run Command as another user
usermod
sudo: command not found
To allow a user to run sudo commands without a password, run
visudoFind
%sudo ALL=(ALL:ALL) ALLAdd below
USERNAME_HERE ALL=(ALL:ALL) NOPASSWD:ALLThis needs to be added after generic rules.
Example
boby ALL=(ALL:ALL) NOPASSWD:ALLTo run command as another user on Linux, you can use
su USER_NAME_HERE -s /bin/bash -c COMMAND_HERE
Or
sudo -u USER_NAME_HERE COMMAND_HERE
Or
runuser -l USER_NAME_HERE -c 'COMMAND_HERE'
See sudo
You can find process id for a running program with command
pidof BINARY_NAME_HERE
Example
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
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.
[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
/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 SSL virtualhost config for server hostname form folder
/usr/local/apache/conf.d/vhosts/
You can see hostname auto SSL logs at
/var/log/cwp/autossl.log
See CWP
On a web server with Newrelic APM installed, graph stopped showing new data. On checking the newrelic log file, i get following error
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
mkdir -p /usr/serverok vi /usr/serverok/newrelic
Add following to the file
#!/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 "${TIME_STAMP} newrelic-daemon down\n"
fi
Make the script executable
chmod 755 /usr/serverok/newrelic
Create a cronjob
crontab -e
Add following cronjob
*/5 * * * * /usr/serverok/newrelic > /var/log/newrelic/monitor.log 2>&1
See Server Monitoring, Application Performance Monitor (APM)
To check if a folder is empty of not, you can use
if [ "$(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 !
if [ ! "$(ls -A /home/boby/1/ )" ]
then
echo "No files found"
else
echo 'Files found.'
fi
See bash
To enable firewal for Ant Media Server on Ubnuntu server, use following rules
ufw allow ssh ufw allow http ufw allow https ufw allow 1935/tcp ufw allow 5080/tcp ufw allow 5443/tcp ufw allow 5000:65000/udp enable ufw
After enabling, you will have following status
root@server:~# ufw status Status: active To Action From -- ------ ---- 22/tcp ALLOW Anywhere 80/tcp ALLOW Anywhere 443/tcp ALLOW Anywhere 1935/tcp ALLOW Anywhere 5080/tcp ALLOW Anywhere 5443/tcp ALLOW Anywhere 5000:65000/udp ALLOW Anywhere 22/tcp (v6) ALLOW Anywhere (v6) 80/tcp (v6) ALLOW Anywhere (v6) 443/tcp (v6) ALLOW Anywhere (v6) 1935/tcp (v6) ALLOW Anywhere (v6) 5080/tcp (v6) ALLOW Anywhere (v6) 5443/tcp (v6) ALLOW Anywhere (v6) 5000:65000/udp (v6) ALLOW Anywhere (v6) root@server:~#
You can forward port 80 and 443 to Ant Media Server, so you don’t have to use ports.
You can use following iptables commands
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 5080 sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 5443
To make it permanent, edit
vi /etc/ufw/before.rules
In the beginning of the file, find
*filter
Add above
*nat :PREROUTING ACCEPT [0:0] -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 5080 -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 5443 COMMIT
Restart ufw firewall
ufw disable ufw enable
See Ant Media Server