Hello,
I started having problems with the OpenVPN server (that works fine over 2 years without any big isues) - Now almost everyday at random hour stop working.
When I'm trying connect to VPN I'm getting error "read UDP: Unknown error (code=10054)" so to check it I connect via ssh and execute command "nvram get vpn_server1_state" and got "-1" status, then I restart service by "reservice start_vpnserver1" and status get back to "2" vpn work agian. Then I've cheeked logs and last logs before vpn server restart was like below (I assume that is some kind of bruteforce attack but its possible that this force server to stop working?):
My router is RT-AC87U firmware 384.13_10
I started having problems with the OpenVPN server (that works fine over 2 years without any big isues) - Now almost everyday at random hour stop working.
When I'm trying connect to VPN I'm getting error "read UDP: Unknown error (code=10054)" so to check it I connect via ssh and execute command "nvram get vpn_server1_state" and got "-1" status, then I restart service by "reservice start_vpnserver1" and status get back to "2" vpn work agian. Then I've cheeked logs and last logs before vpn server restart was like below (I assume that is some kind of bruteforce attack but its possible that this force server to stop working?):
Can anyone can help me to resolve this problem?Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:20351 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:20351, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:41841 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:41841, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:262 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:262, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:63228 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:63228, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:437 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:437, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:40466 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:40466, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:36252 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:36252, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:62897 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:62897, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:11146 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:11146, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:62934 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:62934, sid=6a22eb44 5adb63fe
Mar 29 19:38:31 ovpn-server1[692]: 45.179.44.50:25235 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:25235, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:34472 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:34472, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:39669 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:39669, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:56036 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:56036, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:6955 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:6955, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:34141 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:34141, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:63142 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:63142, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:37449 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:37449, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:1554 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:1554, sid=6a22eb44 5adb63fe
Mar 29 19:38:32 ovpn-server1[692]: 45.179.44.50:27470 TLS: Initial packet from [AF_INET6]::ffff:45.179.44.50:27470, sid=6a22eb44 5adb63fe
My router is RT-AC87U firmware 384.13_10