Show open ports on Mac
If you want to know which ports are open on your Mac, you can use built-in tools in terminal: lsof -i -P | grep -i "listen" This gives you a…
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Create a Centos Repository Mirror
Quite a few companies do not allow direct connections from the internal servers to the Internet. This is usually no problem, beside the time, when you want to update your…
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Using Apple Mac Keyboard with Ubuntu
You are a Mac user and run Linux machines virtually on your Macbook or your console keyboard is an Apple Mac Keyboard. Ubuntu Linux sets the keyboard parameters in the…
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Fortigate Firewall Command Tree
If you want to know which commands exist on a FortiGate, type tree on the command line. You get the whole command structure of the installed operating system. config antivirus…
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Config Save Revert on a FortiGate
By default, a FortiGate does autosave the configuration, every time you press Apply or OK in the GUI. On the CLI the config becomes active and is saved when you…
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Use netcat instead of telnet
Network engineers often use telnet to establish a connection to a service on a remote server. Apple dropped the telnet and ftp client in macOS High Sierra. First I was…
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