Ubuntu: cp copy overwrite without prompting
when you run: cp -rf /source/* /destination , it always ask you to confirm the overwrite action. Root cause: it’s…
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Python: Realtime web print out
There are some situation when we run a time-consuming process, we need to see the output of that command to…
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Restrict user to FTP only
### Restrict User to FTP Only: A Guide for Enhanced Security and Access Control In any organization or server setup,…
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Can’t Use apt i.e. /boot is 100% full
NOTE: this is only if you can’t use apt to clean up due to a 100% full /boot 1. Get…
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PHP7: Parse error: syntax error, unexpected ‘new’ (T_NEW)
You might see that error when upgrading from PHP5 to PHP7 your code might look like this: [crayon-6864cfed12987301838999/] Solution:…
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Dovecot – Iredmail SSL installation
First of all, we need to order a certificate , this certificate is the same with normal web server certificate.…
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Pairing Logitech Mouse B175 M325
My old Logitech B175 was lost, i still have the receiver. One day i found another Logitech Mouse M325, this…
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Kill all close wait process
We have seen many cases where the client didn’t close the connection correctly, the process is stuck at CLOSE_WAIT status,…
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Auto Restart apache when connection is high
In some situations, our web server receive too many connections. The number is much higher than normal, that could be…
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Mysql Replication error: Slave failed to initialize relay log info structure from the repository after changing hostname
Below are the steps to fix this issue: 1. Shut down your old slave server and make a copy of…