Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: None

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.55.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50059
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.55.138.			IN	A

;; AUTHORITY SECTION:
.			431	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:13:21 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.55.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.55.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
117.90.39.2 attackbots
Dec 21 00:04:26 riskplan-s sshd[28699]: reveeclipse mapping checking getaddrinfo for 2.39.90.117.broad.zj.js.dynamic.163data.com.cn [117.90.39.2] failed - POSSIBLE BREAK-IN ATTEMPT!
Dec 21 00:04:26 riskplan-s sshd[28699]: Invalid user admin from 117.90.39.2
Dec 21 00:04:26 riskplan-s sshd[28699]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.90.39.2 
Dec 21 00:04:27 riskplan-s sshd[28699]: Failed password for invalid user admin from 117.90.39.2 port 32128 ssh2
Dec 21 00:04:27 riskplan-s sshd[28699]: Received disconnect from 117.90.39.2: 11: Bye Bye [preauth]
Dec 21 00:19:39 riskplan-s sshd[28989]: reveeclipse mapping checking getaddrinfo for 2.39.90.117.broad.zj.js.dynamic.163data.com.cn [117.90.39.2] failed - POSSIBLE BREAK-IN ATTEMPT!
Dec 21 00:19:39 riskplan-s sshd[28989]: Invalid user michhostnameake from 117.90.39.2
Dec 21 00:19:39 riskplan-s sshd[28989]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=........
-------------------------------
2019-12-22 20:46:30
49.235.196.118 attack
Dec 22 09:56:04 ns382633 sshd\[8469\]: Invalid user rpc from 49.235.196.118 port 34350
Dec 22 09:56:04 ns382633 sshd\[8469\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.196.118
Dec 22 09:56:06 ns382633 sshd\[8469\]: Failed password for invalid user rpc from 49.235.196.118 port 34350 ssh2
Dec 22 10:09:14 ns382633 sshd\[10572\]: Invalid user henka from 49.235.196.118 port 54006
Dec 22 10:09:14 ns382633 sshd\[10572\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.196.118
2019-12-22 20:50:46
139.59.3.151 attack
2019-12-22T12:32:33.982755shield sshd\[27778\]: Invalid user aishii from 139.59.3.151 port 41230
2019-12-22T12:32:33.986021shield sshd\[27778\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.3.151
2019-12-22T12:32:35.863730shield sshd\[27778\]: Failed password for invalid user aishii from 139.59.3.151 port 41230 ssh2
2019-12-22T12:38:44.674199shield sshd\[30261\]: Invalid user osiris from 139.59.3.151 port 46788
2019-12-22T12:38:44.680128shield sshd\[30261\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.3.151
2019-12-22 20:50:14
72.239.45.143 attackspambots
Automatic report - Port Scan Attack
2019-12-22 20:49:37
132.232.47.41 attack
Dec 22 00:04:21 kapalua sshd\[30485\]: Invalid user teamspeak from 132.232.47.41
Dec 22 00:04:21 kapalua sshd\[30485\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.47.41
Dec 22 00:04:23 kapalua sshd\[30485\]: Failed password for invalid user teamspeak from 132.232.47.41 port 35345 ssh2
Dec 22 00:14:08 kapalua sshd\[31518\]: Invalid user paulb from 132.232.47.41
Dec 22 00:14:08 kapalua sshd\[31518\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.47.41
2019-12-22 21:13:35
78.43.55.100 attackbots
Dec 22 11:11:20 [host] sshd[24357]: Invalid user ambbill from 78.43.55.100
Dec 22 11:11:20 [host] sshd[24357]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=78.43.55.100
Dec 22 11:11:22 [host] sshd[24357]: Failed password for invalid user ambbill from 78.43.55.100 port 40933 ssh2
2019-12-22 20:59:16
115.231.156.236 attackbotsspam
Lines containing failures of 115.231.156.236
Dec 19 19:56:03 icinga sshd[5302]: Invalid user ftpuser from 115.231.156.236 port 52560
Dec 19 19:56:03 icinga sshd[5302]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.231.156.236
Dec 19 19:56:05 icinga sshd[5302]: Failed password for invalid user ftpuser from 115.231.156.236 port 52560 ssh2
Dec 19 19:56:06 icinga sshd[5302]: Received disconnect from 115.231.156.236 port 52560:11: Bye Bye [preauth]
Dec 19 19:56:06 icinga sshd[5302]: Disconnected from invalid user ftpuser 115.231.156.236 port 52560 [preauth]
Dec 19 20:08:17 icinga sshd[8482]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.231.156.236  user=bin
Dec 19 20:08:19 icinga sshd[8482]: Failed password for bin from 115.231.156.236 port 38074 ssh2
Dec 19 20:08:19 icinga sshd[8482]: Received disconnect from 115.231.156.236 port 38074:11: Bye Bye [preauth]
Dec 19 20:08:19 icinga ssh........
------------------------------
2019-12-22 20:52:23
37.221.198.110 attackbotsspam
Dec 22 10:25:17 vtv3 sshd[18663]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.221.198.110 
Dec 22 10:25:19 vtv3 sshd[18663]: Failed password for invalid user evsiri from 37.221.198.110 port 38298 ssh2
Dec 22 10:32:52 vtv3 sshd[22002]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.221.198.110 
Dec 22 10:47:10 vtv3 sshd[29560]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.221.198.110 
Dec 22 10:47:13 vtv3 sshd[29560]: Failed password for invalid user hibrow from 37.221.198.110 port 54494 ssh2
Dec 22 10:54:32 vtv3 sshd[606]: Failed password for root from 37.221.198.110 port 59932 ssh2
Dec 22 11:08:43 vtv3 sshd[7168]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.221.198.110 
Dec 22 11:08:46 vtv3 sshd[7168]: Failed password for invalid user pi from 37.221.198.110 port 42500 ssh2
Dec 22 11:16:14 vtv3 sshd[10668]: pam_unix(sshd:auth):
2019-12-22 21:06:42
80.211.75.33 attackspambots
Dec 22 09:46:51 ws12vmsma01 sshd[34418]: Invalid user ftp from 80.211.75.33
Dec 22 09:46:53 ws12vmsma01 sshd[34418]: Failed password for invalid user ftp from 80.211.75.33 port 54998 ssh2
Dec 22 09:51:47 ws12vmsma01 sshd[35153]: Invalid user sl from 80.211.75.33
...
2019-12-22 20:52:52
185.22.143.232 attackspambots
Dec 20 10:18:35 kmh-mb-001 sshd[27221]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.22.143.232  user=r.r
Dec 20 10:18:36 kmh-mb-001 sshd[27221]: Failed password for r.r from 185.22.143.232 port 46685 ssh2
Dec 20 10:18:36 kmh-mb-001 sshd[27221]: Received disconnect from 185.22.143.232 port 46685:11: Bye Bye [preauth]
Dec 20 10:18:36 kmh-mb-001 sshd[27221]: Disconnected from 185.22.143.232 port 46685 [preauth]
Dec 20 10:32:02 kmh-mb-001 sshd[28975]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.22.143.232  user=r.r
Dec 20 10:32:05 kmh-mb-001 sshd[28975]: Failed password for r.r from 185.22.143.232 port 37612 ssh2
Dec 20 10:32:05 kmh-mb-001 sshd[28975]: Received disconnect from 185.22.143.232 port 37612:11: Bye Bye [preauth]
Dec 20 10:32:05 kmh-mb-001 sshd[28975]: Disconnected from 185.22.143.232 port 37612 [preauth]
Dec 20 10:39:35 kmh-mb-001 sshd[29977]: Invalid user tetsu from ........
-------------------------------
2019-12-22 20:37:58
180.76.96.125 attack
Dec 22 07:17:50 heissa sshd\[4500\]: Invalid user test from 180.76.96.125 port 48258
Dec 22 07:17:50 heissa sshd\[4500\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.96.125
Dec 22 07:17:52 heissa sshd\[4500\]: Failed password for invalid user test from 180.76.96.125 port 48258 ssh2
Dec 22 07:23:42 heissa sshd\[5466\]: Invalid user tp from 180.76.96.125 port 39202
Dec 22 07:23:42 heissa sshd\[5466\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.96.125
2019-12-22 21:03:43
112.11.241.147 attackspam
Dec 22 07:49:58 sxvn sshd[183546]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.11.241.147
2019-12-22 20:39:40
121.128.200.146 attackbots
$f2bV_matches
2019-12-22 20:34:39
91.204.188.50 attackspam
...
2019-12-22 20:46:46
200.212.252.130 attackspambots
Dec 21 21:47:06 hanapaa sshd\[16556\]: Invalid user souza from 200.212.252.130
Dec 21 21:47:06 hanapaa sshd\[16556\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.212.252.130
Dec 21 21:47:08 hanapaa sshd\[16556\]: Failed password for invalid user souza from 200.212.252.130 port 49816 ssh2
Dec 21 21:54:00 hanapaa sshd\[17169\]: Invalid user strider from 200.212.252.130
Dec 21 21:54:00 hanapaa sshd\[17169\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.212.252.130
2019-12-22 20:43:44

Recently Reported IPs

104.21.55.121 104.21.55.159 104.21.55.167 104.21.55.168
104.21.55.158 104.21.55.146 104.21.55.194 104.21.55.198
104.21.55.18 13.225.71.37 104.21.55.2 104.21.55.200
104.21.55.210 104.21.55.215 104.21.55.214 104.21.55.225
104.21.55.224 104.21.55.230 104.21.55.237 104.21.55.234