I’m running the latest version of AstLinux with adaptive-ban enabled. This
works a charm on blocking ssh login attempts. However, I recently came across
the following in my Asterisk logs (it appears I’m under some sort of attack):
[Jan 4 21:25:49] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x8909438'
[Jan 4 21:25:49] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"306"<sip:[email protected]>;tag=3330360132363436373735323230
[Jan 4 21:25:49] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x890ba78'
[Jan 4 21:25:49] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"307"<sip:[email protected]>;tag=33303701323431383731383932
[Jan 4 21:25:49] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x890dcd8'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"308"<sip:[email protected]>;tag=3330380132343836303037313837
[Jan 4 21:25:50] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x890f528'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"309"<sip:[email protected]>;tag=3330390131333738393630373531
[Jan 4 21:25:50] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x8911790'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"310"<sip:[email protected]>;tag=3331300131303735393534373639
[Jan 4 21:25:50] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x8912fe0'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"311"<sip:[email protected]>;tag=3331310132383934373035383636
[Jan 4 21:25:50] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x8914830'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"312"<sip:[email protected]>;tag=33313201313439373439313831
[Jan 4 21:25:50] ERROR[1344]: res_rtp_asterisk.c:570 ast_rtp_new: Oh dear...
we couldn't allocate a port for RTP instance '0x8916e68'
[Jan 4 21:25:50] NOTICE[1344]: chan_sip.c:23337 handle_request_invite: Failed
to authenticate device
"313"<sip:[email protected]>;tag=3331330133373231383036373539
Is there a way to auto-magically block these attempts?
many thanks,
Shamus
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