Delete Applications on a Mac
On a Mac, you basically pull your application, you do not want anymore, into your trash bin. That's it. But there are always some config files left in the ~/Library…
Posts related to Apple
tcpdump TCP/IP packet sniffer
Sometimes you need a powerful sniffer on your system. Every Mac and every Linux system got it. You just have to use it. tcpdump The only thing you have to…
Clear DNS cache on a Mac
Every Mac caches resolved DNS queries. Sometimes you get entries which create problems. To get rid of them you have to options: reboot the machine. This is the bad one.…
Calculate file checksums using openssl
If you need to calculate the checksum of a file on Mac or UNIX simply use openssl: openssl md5 DeleteCookies.zip openssl sha DeleteCookies.zip This command gives you the checksum of…
Upload Firmware from a Mac using Xmodem
If you have to upload firmware to a router or a switch with xmodem, get the package ⇒lrzsz-0.12.20.tar.gz. First, install Xcode from the App Store. Then compile the package and…
Get telnet and ftp client back on macOS High Sierra
Apple, in their ultimate wisdom, have removed telnet and ftp client on macOS High Sierra. It is true. You should not use these commands anymore to do unencrypted management on…