CentOS 7 Notes

Common services started from the command prompt

https://www.liquidweb.com/kb/restarting-services-from-the-command-line/

When all services are down it’s probably because the firewall service needs to be started

systemctl enable firewalld
systemctl start firewalld
systemctl status firewalld

https://www.liquidweb.com/kb/how-to-start-and-enable-firewalld-on-centos-7/

How to start CentOS Web Panel

service cwpsrv status
service cwpsrv start

https://www.plothost.com/kb/services-centos-web-panel/

Adding users with root privilatge and no passwords

https://unix.stackexchange.com/questions/174780/centos-7-add-new-user-with-root-privileges

Deleting files and dirs on centos

https://www.cyberciti.biz/faq/how-to-delete-and-remove-files-on-centos-linux/

Delete all files and folder: 

rm -rf dir1 

Trouble connecting to services? Timing out? Probably the firewall

firewall-cmd --list-ports
firewall-cmd --list-services
firewall-cmd --list-all
firewall-cmd --add-port==132/tcp --permanent
firewall-cmd --reload

https://www.tecmint.com/fix-firewall-cmd-command-not-found-error/
https://stackoverflow.com/questions/24729024/open-firewall-port-on-centos-7

Need SSL with nodjs

https://www.sitepoint.com/configuring-nginx-ssl-node-js/

Occupied 3000 port – killing processes

https://stackoverflow.com/questions/39322089/node-js-port-3000-already-in-use-but-it-actually-isnt
https://stackoverflow.com/questions/14790910/stop-all-instances-of-node-js-server

Install with root

sudo npm install @material-ui/icons --unsafe-perm=true --allow-root

Permissions

sudo chmod -R 757 /var/www 
sudo chown -R $USER .* h

Delete all files in directory

rm -rf dir1 

Copy all files and subdirs in directory (from ‘test’, into ‘server’)

 cp -rf /home/server/folder/test/* /home/server/ 

Move all files and subdirs in directory (from ‘Downloads’, into ‘Videos’)

mv ~/Downloads/* ~/Videos

Try building your app with ‘next build’ before starting the server

npm run build

How to start/stop/restart/reload ftp (pure-ftpd)

https://www.2daygeek.com/start-stop-restart-enable-reload-pureftpd-server-service-in-linux/

How to load a big SQL file (1. user 2. database 3. file location)

 mysql -u your_username -p -D your_databasename < /home/your_centos_user/public_html/sql_uploads/nudecelebrityhub7.sql

(Next enter your database password)

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