pwru VS nnn

if you have a recent enough kernel, this change https://github.com/cilium/pwru/pull/148 means that it will print the reason the packet was dropped in the output - see https://lwn.net/Articles/885729/

There's a whole heap of reasons a packet can be dropped:

[pwru](https://github.com/cilium/pwru) is a fun new tool from the Cilium folks for tracing network packets in the kernel. Like tcpdump but it shows you the full path including kernel syscalls. Lets you debug much deeper than "when the packet gets to this port it gets dropped".

I recently came across another useful utility for debugging unexpected packet drops - PWRU[0] (Packet, Where Are You) by Cilium.

It uses eBPF to try to trace the path of the packet through the kernel. Haven't needed to use it yet, but it could have saved me a lot of trouble in the past.

[0]: https://github.com/cilium/pwru

If you want a file full browser experience choose nnn: https://github.com/jarun/nnn . If you have a desktop file for Helix you can use the Gnome Files program to make all your programming language files open in Helix.

The other option is to just download the static version https://github.com/jarun/nnn/releases/download/v4.9/nnn-nerd-static-4.9.x86_64.tar.gz and overwrite the Debian executable at /usr/bin/nnn, but this seems a bit hacky, agreed?

You can get the 'default' nuke plugin script from https://github.com/jarun/nnn/blob/master/plugins/nuke and customize it if you need to. You define files by extension or mime type and set default and fallback apps to be opened with.

I like nnn ( n3 ).

The icon-theme seems to be driven by your terminal font as detailed in `src/icons-in-terminal.h & icons.h, and the choice of "terminal-icon vs nerd-fonts vs emoji" appear to be hard-wired at compile-time rather than at run-time.

nnn

git clone https://github.com/jarun/nnn cd nnn make O_NERD=1