Category: Linux

crontab -u www-data -e – Edit crontab of user where www-data is the user. rsync -a /dir1/ /dir2/ – Sync two directories. This overwrites files with the same names. stat file.txt – Show information about a file or directory. du -sh directory/ – show file or directory size. zip -r zip_filename.zip directory/ – zip up…

… or to see what files the process has opened.

This is useful for mirroring directories such as Linux download directories. –recursive – downloads every directory–no-clobber – do not replace files–domains – limit download to a certain domain or sub-domain–R “index.html” – don’t save index.html files

This is a quick configuration of setting a time server on Aruba/HP switches. Enable sntp. Specify how to get to your time server. If your DHCP server specifies an SNTP server in it’s leases, then you didn’t really have to go throughthis. Specify the time server. Replace IP.IP.IP.IP with your server IP. Set the timezone….

Upgrading might break your local resolver, DNSMasq. When you issue the command systemctl status dnsmasq, you might get an error that looks something like, dnsmasq: cannot access /etc/dnsmasq.d/lxd: No such file or directory. DNSMasq does not start because it cannot find this file. This file is simply a dangling symlink that needs to be removed,…