This is one of those things that took too long to figure out. Problem: You need to accept incoming connections on a privileged port (<1024) and forward the connections to an unprivileged port. Solution: Set up a local ssh connection, as root, with port forwarding. Details: “sudo bash” and as root, generate a keypair for [...]
Continue Reading →netcat (nc) is a really useful, if obscure command for managing and listening on TCP sockets. I had a need to implement a local port forward on my machine. (more details coming). I could use ssh to do this, but decided to write a simple shell script using nc instead. Here’s the script, which I’m [...]
Continue Reading →I’m running my own hand-crafted remote backup (rsync++) script to back up data from one machine to another. But, it has some serious drawbacks, and I’m still looking for something better. Here are my requirements: Runs on Ubuntu Is either: Available in the standard distro (i.e. via apt-get) A simple self-contained script (Python, Perl, Bash, [...]
Continue Reading →I was having the following issue while doing a “git push”: $ git push Counting objects: 50, done. Compressing objects: 100% (33/33), done. Writing objects: 100% (36/36), 4.42 KiB, done. Total 36 (delta 13), reused 0 (delta 0) error: unable to write sha1 filename ./objects/fc/0bf175cf9bf2ecdf15eee84adad32230107aa7: Permission denied fatal: failed to write object error: unpack failed: [...]
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