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 <<>> 104.21.57.100
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51888
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.100.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 69 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:38:04 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 100.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 100.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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216.244.192.92 attackbots
Email phishing
2020-08-05 07:25:42
185.46.122.205 attackbotsspam
Automatic report - XMLRPC Attack
2020-08-05 07:19:07
58.87.66.249 attack
$f2bV_matches
2020-08-05 07:20:43
192.35.169.42 attackbots
 TCP (SYN) 192.35.169.42:1558 -> port 119, len 44
2020-08-05 07:34:39
144.217.89.55 attack
(sshd) Failed SSH login from 144.217.89.55 (CA/Canada/55.ip-144-217-89.net): 5 in the last 3600 secs
2020-08-05 07:23:28
92.63.196.38 attackbots
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2020-08-05 07:35:39
122.51.2.33 attackbots
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...
2020-08-05 07:36:19
197.255.160.226 attackspambots
Aug  4 22:17:42 mout sshd[26285]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.255.160.226  user=root
Aug  4 22:17:43 mout sshd[26285]: Failed password for root from 197.255.160.226 port 40892 ssh2
2020-08-05 07:55:18
45.141.84.219 attackbotsspam
Aug  5 00:51:24 debian-2gb-nbg1-2 kernel: \[18839947.873827\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=45.141.84.219 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=245 ID=65516 PROTO=TCP SPT=52686 DPT=4349 WINDOW=1024 RES=0x00 SYN URGP=0
2020-08-05 07:31:48
203.127.84.42 attack
Banned for a week because repeated abuses, for example SSH, but not only
2020-08-05 07:45:03
124.105.173.17 attack
2020-08-04T23:36:13.697144shield sshd\[22660\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.105.173.17  user=root
2020-08-04T23:36:15.470237shield sshd\[22660\]: Failed password for root from 124.105.173.17 port 37171 ssh2
2020-08-04T23:38:39.305974shield sshd\[23769\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.105.173.17  user=root
2020-08-04T23:38:40.789765shield sshd\[23769\]: Failed password for root from 124.105.173.17 port 54719 ssh2
2020-08-04T23:41:00.919518shield sshd\[24710\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.105.173.17  user=root
2020-08-05 07:55:31
58.17.243.132 attack
Aug  4 20:23:26 piServer sshd[13101]: Failed password for root from 58.17.243.132 port 33918 ssh2
Aug  4 20:26:18 piServer sshd[13338]: Failed password for root from 58.17.243.132 port 54340 ssh2
...
2020-08-05 07:31:09
190.156.238.155 attackbots
Aug  2 05:20:33 sip sshd[22030]: Failed password for root from 190.156.238.155 port 48158 ssh2
Aug  2 05:31:31 sip sshd[26134]: Failed password for root from 190.156.238.155 port 44744 ssh2
2020-08-05 07:47:36
174.219.7.144 attackbots
Brute forcing email accounts
2020-08-05 07:53:50
185.193.88.3 attackbotsspam
Brute forcing RDP port 3389
2020-08-05 07:21:26

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