Dev {Tricks}

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How to reboot vps automatically?

To reboot VPS 5 minutes after midnight everyday:

Login via SSH and run the following:

echo shutdown -r now > /root/shutdown.sh;chmod +x /root/shutdown.sh

Then run crontab -e and enter this line:

5 0 * * * /root/shutdown.sh

Then save and exit.

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Fix read only fstab

  • “/ etc/fstab” [readonly]
  • can’t edit fstab read only
  • file ‘/ etc/fstab’ is unwritable
  • Repairing fstab (read only /)

If / etc/fstab is correct, you can simply type:

mount -n -o remount /

But if / etc/fstab is wrong, the device name and possibly the type must have to be given too: e.g.

mount -n -o remount -t extX /dev/sdaX /

Where,
extX is your filesystem type
/dev/sdaX is the partition you want to mount

To see all your available partitions just type ls /dev/[sh]d*.

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Changing the partition layout of your VPS and VDS after installation | Linux

  • How to easily change your partition layout on your VPS or VDS.

Backup of all important data before proceeding! Changes to the partition table always bear the risk of complete data loss.

  • Boot your VPS / VDS into the rescue-system
  • Now connect through VNC (How to use VNC to connect to your VPS and VDS)
  • Login as “root”
  • To perform changes on the partition easily use gparted
  • To start the GUI type “startxfce4” within VNC console and wait a few seconds until the graphical interface appears
  • On the upper left side you will see “Applications”, open it and select “Run Program”
  • Type “gparted” within the application finder and the app should start immediately
  • Now you can resize and create new partition with unallocated space.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Restart an Apache Web Server

Using Init.d

/etc/init.d/apache2 restart
sudo /etc/init.d/apache2 restart
sudo service apache2 restart

For a graceful restart, replace restart with reload.

For CentOS and RHEL servers

service httpd restart

Using Systemctl

systemctl restart apache2.service

Using Apachectl

sudo apachectl -k restart
sudo apachectl -k graceful