On a new installed Centos-6.6, I see a lot of messages about named, fail2ban, snmpd services and I don't understand them. As I search the web, there are some explanations but it is not clear for me, why should I get these messages?
Code: Select all
Jun 4 15:16:48 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 31.207.47.50
Jun 4 15:17:58 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 15:20:47 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 118.184.49.245
Jun 4 15:22:54 cluster named[2464]: error (network unreachable) resolving '118-163-71-101.hinet-ip.hinet.net/AAAA/IN': 2001:503:a83e::2:30#53
Jun 4 15:24:43 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 195.3.144.216
Jun 4 15:26:48 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 31.207.47.50
Jun 4 15:27:58 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 15:30:22 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 15:30:48 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 118.184.49.245
Jun 4 15:34:44 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 195.3.144.216
Jun 4 15:37:42 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2001:43f8:110::10#53
Jun 4 15:37:42 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2001:13c7:7010::53#53
Jun 4 15:37:43 cluster named[2464]: error (unexpected RCODE REFUSED) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 202.56.230.6#53
Jun 4 15:37:43 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:14::3212#53
Jun 4 15:37:43 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:b::9#53
Jun 4 15:37:43 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:14::1:1212#53
Jun 4 15:37:43 cluster named[2464]: error (unexpected RCODE REFUSED) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 202.56.230.5#53
Jun 4 15:37:44 cluster named[2464]: error (unexpected RCODE REFUSED) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 202.56.230.5#53
Jun 4 15:37:44 cluster named[2464]: error (unexpected RCODE REFUSED) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 202.56.230.6#53
Jun 4 15:37:44 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:b::9#53
Jun 4 15:37:44 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:14::3212#53
Jun 4 15:37:44 cluster named[2464]: error (network unreachable) resolving '12.226.229.223.in-addr.arpa/PTR/IN': 2404:a800:0:14::1:1212#53
Jun 4 15:37:56 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 223.229.226.12
Jun 4 15:40:22 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 15:40:32 cluster named[2464]: error (network unreachable) resolving '53.116.31.116.in-addr.arpa/PTR/IN': 2001:dd8:6::101#53
Jun 4 15:41:37 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 15:47:57 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 223.229.226.12
Jun 4 15:51:31 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:51:31 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:51:31 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:51:38 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 15:51:56 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:52:20 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:52:20 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:52:21 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:52:43 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:52:44 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:53:08 cluster snmpd[2785]: Connection from UDP: [46.208.33.154]:9307->[172.20.54.10]
Jun 4 15:55:03 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 16:01:01 cluster python: ganglia news loading gmon.news: mia load full
Jun 4 16:04:52 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 118.184.49.245
Jun 4 16:05:04 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 16:06:41 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 16:14:53 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 118.184.49.245
Jun 4 16:16:42 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 16:18:04 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 16:28:05 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 16:29:39 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 16:39:39 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Unban 116.31.116.53
Jun 4 16:41:12 cluster fail2ban.actions[3182]: WARNING [ssh-iptables] Ban 116.31.116.53
Jun 4 16:41:37 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:41:37 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:41:37 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:41:37 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:41:37 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:00 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:00 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:00 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:00 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:00 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:22 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:22 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]
Jun 4 16:42:22 cluster snmpd[2785]: Connection from UDP: [27.5.232.19]:3658->[172.20.54.10]