> On Dec 19, 2022, at 9:25 AM, Jim Klimov <jimklimov+...@gmail.com> wrote: > > Maybe also try strace, truss and the likes to see what syscalls it makes? > e.g. falls on read/select?.. >
Yep, it’s not even trying a connect(). Here is upsmon vs. curl: [root@ss20 ~]# LD_LIBRARY_PATH=/usr/local/ups/lib truss -f /usr/local/ups/sbin/upsmon 2>&1 | grep -i connect Broadcast Message from nobody (???) on ss20 Mon Dec 19 11:19:26... Communications with UPS ups@192.68.64.30 lost Broadcast Message from nobody (???) on ss20 Mon Dec 19 11:19:31... UPS ups@192.68.64.30 is unavailable ^C [root@ss20 ~]# truss curl -I -v http://burn.net 2>&1 | grep -i connect About to connect() to burn.net port 80 (#0) connect(4, 0xEFFFEC98, 32, 1) Err#150 EINPROGRESS connected Connected to burn.net (2001:19f0:5c01:19a3:45:76:18:80) port 80 (#0) Closing connection #0 _______________________________________________ Nut-upsuser mailing list Nut-upsuser@alioth-lists.debian.net https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser