SolSoCoGHow can I clear up an udp4 port that is held open but has no pid attached to it? Neither nfs nor wireguard are keeping that port up. Also nothing in /proc/*/fd/* when searching for the inode that keeps the port open. What the heck? It was used by a gameserver which I sigkilled, now this *ghost* port stays open and blocks further attemps to bind to that port. Shown in /proc/net/udp is uid 0 and a lot of drops at that port. #linux #networking #debian
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