TZUTC: -0700
MSGID: 58517.sync_sys@1:103/705 2d08448f
PID: Synchronet 3.21a-Linux master/27cbebcb9 Aug 10 2025 GCC 12.2.0
TID: SBBSecho 3.29-Linux master/27cbebcb9 Aug 10 2025 GCC 12.2.0
BBSID: VERT
CHRS: ASCII 1
FORMAT: flowed
https://gitlab.synchro.net/main/sbbs/-/issues/966#note_7545

That log message is coming from sbbs, not dyndns, and sbbs doesn't know that
the logged command-line contains a password.

To avoid this, put the password in the `[dyndns]` section of your
`modopts.ini` file instead of on the command-line and include '-q' (quiet) on
the dyndns command-line. That should resolve that.
--- SBBSecho 3.29-Linux
 * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)
SEEN-BY: 10/0 1 102/401 103/1 13 17 705 105/81 106/201 124/5016 128/187
SEEN-BY: 129/14 153/7715 154/110 214/22 218/0 1 215 601 610 700 840
SEEN-BY: 218/860 226/30 227/114 229/110 114 206 317 400 426 428 470
SEEN-BY: 229/700 705 266/512 280/464 291/111 301/1 320/219 322/757
SEEN-BY: 342/200 396/45 460/58 633/280 712/848 902/26 5075/35
PATH: 103/705 218/700 229/426