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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.20.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61180
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.20.57.			IN	A

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

;; Query time: 63 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:32:56 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 57.20.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 57.20.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
188.131.212.175 attackbotsspam
firewall-block, port(s): 8545/tcp
2020-03-27 04:27:56
182.61.48.178 attackbots
Mar 26 19:17:35 h2779839 sshd[4776]: Invalid user falcon from 182.61.48.178 port 46642
Mar 26 19:17:35 h2779839 sshd[4776]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.48.178
Mar 26 19:17:35 h2779839 sshd[4776]: Invalid user falcon from 182.61.48.178 port 46642
Mar 26 19:17:37 h2779839 sshd[4776]: Failed password for invalid user falcon from 182.61.48.178 port 46642 ssh2
Mar 26 19:19:19 h2779839 sshd[4806]: Invalid user chas from 182.61.48.178 port 42852
Mar 26 19:19:19 h2779839 sshd[4806]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.48.178
Mar 26 19:19:19 h2779839 sshd[4806]: Invalid user chas from 182.61.48.178 port 42852
Mar 26 19:19:21 h2779839 sshd[4806]: Failed password for invalid user chas from 182.61.48.178 port 42852 ssh2
Mar 26 19:21:06 h2779839 sshd[4879]: Invalid user lihao from 182.61.48.178 port 39048
...
2020-03-27 04:21:58
51.15.245.32 attack
Mar 26 20:20:23 dev0-dcde-rnet sshd[1338]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.245.32
Mar 26 20:20:25 dev0-dcde-rnet sshd[1338]: Failed password for invalid user faxbox from 51.15.245.32 port 40920 ssh2
Mar 26 20:29:29 dev0-dcde-rnet sshd[1437]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.245.32
2020-03-27 04:17:29
106.54.98.89 attackspam
Mar 26 17:06:51 *** sshd[30837]: Invalid user unitedlinux from 106.54.98.89
2020-03-27 04:08:42
2.139.215.255 attackspam
sshd jail - ssh hack attempt
2020-03-27 03:59:04
27.34.90.24 attackbots
Mar 26 13:16:36 *** sshd[22284]: Invalid user admin from 27.34.90.24
Mar 26 13:16:36 *** sshd[22284]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.34.90.24 
Mar 26 13:16:38 *** sshd[22284]: Failed password for invalid user admin from 27.34.90.24 port 49474 ssh2
Mar 26 13:16:38 *** sshd[22284]: Connection closed by 27.34.90.24 [preauth]
Mar 26 13:16:42 *** sshd[22286]: Invalid user admin from 27.34.90.24
Mar 26 13:16:42 *** sshd[22286]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.34.90.24 


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=27.34.90.24
2020-03-27 04:06:22
149.56.100.237 attackspambots
2020-03-26T21:23:37.016246  sshd[23438]: Invalid user ssh from 149.56.100.237 port 50476
2020-03-26T21:23:37.030945  sshd[23438]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.56.100.237
2020-03-26T21:23:37.016246  sshd[23438]: Invalid user ssh from 149.56.100.237 port 50476
2020-03-26T21:23:39.174206  sshd[23438]: Failed password for invalid user ssh from 149.56.100.237 port 50476 ssh2
...
2020-03-27 04:31:44
58.246.187.102 attackspam
Mar 27 00:33:00 gw1 sshd[10058]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.246.187.102
Mar 27 00:33:03 gw1 sshd[10058]: Failed password for invalid user liugang from 58.246.187.102 port 61440 ssh2
...
2020-03-27 03:57:20
220.164.145.57 attack
Lines containing failures of 220.164.145.57
Mar 26 13:19:17 shared11 sshd[3493]: Invalid user admin from 220.164.145.57 port 59234
Mar 26 13:19:17 shared11 sshd[3493]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.164.145.57
Mar 26 13:19:18 shared11 sshd[3493]: Failed password for invalid user admin from 220.164.145.57 port 59234 ssh2
Mar 26 13:19:19 shared11 sshd[3493]: Connection closed by invalid user admin 220.164.145.57 port 59234 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=220.164.145.57
2020-03-27 04:30:42
84.58.203.178 attack
Mar 26 13:14:12 server010 sshd[24624]: Invalid user navi from 84.58.203.178
Mar 26 13:14:12 server010 sshd[24624]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.58.203.178
Mar 26 13:14:14 server010 sshd[24624]: Failed password for invalid user navi from 84.58.203.178 port 34052 ssh2
Mar 26 13:18:08 server010 sshd[24766]: Invalid user user from 84.58.203.178
Mar 26 13:18:08 server010 sshd[24766]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.58.203.178

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=84.58.203.178
2020-03-27 04:09:32
92.118.161.17 attackbots
ICMP MH Probe, Scan /Distributed -
2020-03-27 04:00:35
80.82.77.234 attack
Mar 26 17:07:57 debian-2gb-nbg1-2 kernel: \[7497952.449885\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=80.82.77.234 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=27370 PROTO=TCP SPT=47333 DPT=34889 WINDOW=1024 RES=0x00 SYN URGP=0
2020-03-27 04:34:48
92.118.160.9 attack
ICMP MH Probe, Scan /Distributed -
2020-03-27 04:09:05
203.195.231.79 attackspambots
Mar 26 18:47:26 host01 sshd[29146]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.195.231.79 
Mar 26 18:47:28 host01 sshd[29146]: Failed password for invalid user alvarie from 203.195.231.79 port 54922 ssh2
Mar 26 18:49:52 host01 sshd[29497]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.195.231.79 
...
2020-03-27 04:06:41
123.170.78.157 attack
Honeypot attack, port: 5555, PTR: PTR record not found
2020-03-27 03:59:59

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