Hello, It's not clear that OpenSIPS really requires 'protection' from malformed SIP messages. They don't do any obvious harm.
More generally, there's no way to use the parser to validate SIP messages for morphological correctness without... using the parser to validate them. How would you know if they're bad messages "a priori"? If your goal is to block source IPs which generate a large amount of these invalid messages, that's another matter. A log analysis-triggered automatic firewalling tool such as Fail2ban[1], perhaps in concert with a system like APIBAN, might be your best bet. -- Alex [1] https://github.com/fail2ban/fail2ban > On Dec 8, 2024, at 1:06 pm, APach via Users <[email protected]> wrote: > > Dear Team. > > How to protect the server from messages like this & how to block them? > > > Dec 8 19:45:40 mx [1279]: INFO:core:parse_first_line: method not followed by > SP > Dec 8 19:45:40 mx [1279]: INFO:core:parse_first_line: bad message > Dec 8 19:45:40 mx [1279]: ERROR:core:parse_msg: > message=<S.#002O#033`\G#031W#003RYRSZTT#014-#020C3#017\#013k\G-X#032SZin:E6T#0349&u#013yO`M[#015^#036@mzKXW#022#005/,Y#011#025GD[}#007"> > Dec 8 19:45:40 mx /usr/sbin/opensips[1279]: ERROR:core:receive_msg: Unable > to parse msg received from [147.45.78.98:11072] > > > > > _______________________________ > Best Regards Andriy Pachkovskyy > Mob. tel. +48504122924 > Mob. tel. +380679421834 > Sip tel. [email protected] > Email: [email protected] > Jabber: [email protected] > <ps-error2024-12-08 > 19-57-31.png>_______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users -- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com Tel: +1-706-510-6800 _______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
