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: United States

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 <<>> 104.21.57.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33496
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.138.			IN	A

;; AUTHORITY SECTION:
.			224	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 00:29:54 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
77.92.226.74 attackspambots
23/tcp
[2020-09-24]1pkt
2020-09-25 21:26:50
52.175.204.16 attack
Sep 25 14:04:23 dev0-dcde-rnet sshd[28927]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.175.204.16
Sep 25 14:04:25 dev0-dcde-rnet sshd[28927]: Failed password for invalid user 157 from 52.175.204.16 port 12150 ssh2
Sep 25 14:23:53 dev0-dcde-rnet sshd[29137]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.175.204.16
2020-09-25 21:50:58
110.35.80.82 attack
Invalid user file from 110.35.80.82 port 60824
2020-09-25 21:31:27
181.112.224.22 attackbotsspam
445/tcp 445/tcp
[2020-09-24]2pkt
2020-09-25 21:15:36
185.12.177.213 attack
Brute force blocker - service: exim2 - aantal: 25 - Fri Sep  7 02:45:10 2018
2020-09-25 21:30:31
185.234.216.108 attackspam
lfd: (smtpauth) Failed SMTP AUTH login from 185.234.216.108 (PL/Poland/-): 5 in the last 3600 secs - Sat Sep  8 12:08:55 2018
2020-09-25 21:19:54
141.98.9.165 attack
Sep 25 13:03:44 scw-6657dc sshd[28213]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.9.165
Sep 25 13:03:44 scw-6657dc sshd[28213]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.9.165
Sep 25 13:03:47 scw-6657dc sshd[28213]: Failed password for invalid user user from 141.98.9.165 port 45523 ssh2
...
2020-09-25 21:46:06
185.12.177.54 attackspam
lfd: (smtpauth) Failed SMTP AUTH login from 185.12.177.54 (host54-177-12-185.static.arubacloud.de): 5 in the last 3600 secs - Thu Sep  6 20:10:04 2018
2020-09-25 21:28:14
182.61.3.119 attackspambots
2020-09-25T11:29:51.179620shield sshd\[2260\]: Invalid user dayz from 182.61.3.119 port 52317
2020-09-25T11:29:51.188279shield sshd\[2260\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.3.119
2020-09-25T11:29:52.437244shield sshd\[2260\]: Failed password for invalid user dayz from 182.61.3.119 port 52317 ssh2
2020-09-25T11:35:07.674320shield sshd\[3396\]: Invalid user jim from 182.61.3.119 port 49483
2020-09-25T11:35:07.680987shield sshd\[3396\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.3.119
2020-09-25 21:45:38
114.33.143.30 attackspambots
Telnet/23 MH Probe, Scan, BF, Hack -
2020-09-25 21:29:04
36.45.143.153 attackbotsspam
Brute force blocker - service: proftpd1 - aantal: 130 - Thu Sep  6 10:50:15 2018
2020-09-25 21:35:47
157.230.220.179 attackbots
Invalid user admin from 157.230.220.179 port 59222
2020-09-25 21:51:55
183.91.77.38 attackspambots
Sep 25 15:06:04 eventyay sshd[6314]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.91.77.38
Sep 25 15:06:06 eventyay sshd[6314]: Failed password for invalid user base from 183.91.77.38 port 48924 ssh2
Sep 25 15:11:12 eventyay sshd[6407]: Failed password for root from 183.91.77.38 port 55530 ssh2
...
2020-09-25 21:45:16
31.10.143.197 attackbotsspam
2020-09-2422:14:19dovecot_plainauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45285:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:14:25dovecot_plainauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45285:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:14:31dovecot_loginauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45285:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:14:37dovecot_loginauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45285:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:39:14dovecot_plainauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45358:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:39:20dovecot_plainauthenticatorfailedfor\([192.168.0.187]\)[31.10.143.197]:45358:535Incorrectauthenticationdata\(set_id=r.zobrist@studiocounselling.ch\)2020-09-2422:39:26dovecot_loginaut
2020-09-25 21:18:54
51.141.41.246 attack
2020-09-24 UTC: (3x) - root(2x),vmuser
2020-09-25 21:11:08

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