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 <<>> 104.21.4.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21770
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.4.138.			IN	A

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

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 21:44:46 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 138.4.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.4.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
121.196.9.87 attackbots
Port Scan
...
2020-09-28 21:44:09
202.29.220.182 attack
Time:     Sat Sep 26 20:09:33 2020 +0000
IP:       202.29.220.182 (TH/Thailand/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 26 20:03:53 activeserver sshd[6574]: Invalid user Robert from 202.29.220.182 port 33538
Sep 26 20:03:55 activeserver sshd[6574]: Failed password for invalid user Robert from 202.29.220.182 port 33538 ssh2
Sep 26 20:07:41 activeserver sshd[16696]: Invalid user glassfish from 202.29.220.182 port 44370
Sep 26 20:07:43 activeserver sshd[16696]: Failed password for invalid user glassfish from 202.29.220.182 port 44370 ssh2
Sep 26 20:09:29 activeserver sshd[21447]: Invalid user logger from 202.29.220.182 port 55206
2020-09-28 21:39:58
165.232.126.142 attackspam
Time:     Sun Sep 27 04:37:24 2020 +0000
IP:       165.232.126.142 (US/United States/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 27 04:29:50 3 sshd[7862]: Invalid user tg from 165.232.126.142 port 55834
Sep 27 04:29:52 3 sshd[7862]: Failed password for invalid user tg from 165.232.126.142 port 55834 ssh2
Sep 27 04:34:52 3 sshd[19941]: Invalid user tania from 165.232.126.142 port 45356
Sep 27 04:34:54 3 sshd[19941]: Failed password for invalid user tania from 165.232.126.142 port 45356 ssh2
Sep 27 04:37:22 3 sshd[25445]: Invalid user administrator from 165.232.126.142 port 34876
2020-09-28 21:15:28
180.76.103.247 attackspambots
Invalid user temp1 from 180.76.103.247 port 59134
2020-09-28 21:32:02
117.144.189.69 attackspam
Brute-force attempt banned
2020-09-28 21:25:03
185.74.4.17 attackbots
Time:     Sun Sep 27 04:04:49 2020 +0000
IP:       185.74.4.17 (UZ/Uzbekistan/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 27 03:55:11 3 sshd[22526]: Failed password for invalid user oracle from 185.74.4.17 port 58869 ssh2
Sep 27 04:00:56 3 sshd[5156]: Invalid user mark from 185.74.4.17 port 34820
Sep 27 04:00:58 3 sshd[5156]: Failed password for invalid user mark from 185.74.4.17 port 34820 ssh2
Sep 27 04:04:45 3 sshd[14111]: Invalid user uftp from 185.74.4.17 port 47017
Sep 27 04:04:47 3 sshd[14111]: Failed password for invalid user uftp from 185.74.4.17 port 47017 ssh2
2020-09-28 21:23:13
192.35.168.249 attackbotsspam
SMTP:25. Failed access attempt. IP Blocked
2020-09-28 21:19:20
112.85.42.13 attackbots
Brute-force attempt banned
2020-09-28 21:23:30
157.230.27.30 attackbots
WordPress wp-login brute force :: 157.230.27.30 0.108 - [28/Sep/2020:10:53:52  0000] [censored_1] "POST /wp-login.php HTTP/1.1" 200 2414 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "HTTP/1.1"
2020-09-28 21:13:28
122.51.68.7 attackbots
2020-09-27 UTC: (30x) - admin,alumno,arief,bot,deploy,ekp,ginseng,gitblit,maria,menu,misha,mongo,mysql,programacion,pt,root(7x),s1,secretaria,sonic,sysadm,train1,ubuntu,user,wiki
2020-09-28 21:34:12
109.116.41.238 attack
2020-09-28T13:16:38.194696randservbullet-proofcloud-66.localdomain sshd[27576]: Invalid user test from 109.116.41.238 port 56004
2020-09-28T13:16:38.199204randservbullet-proofcloud-66.localdomain sshd[27576]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=109.116.41.238
2020-09-28T13:16:38.194696randservbullet-proofcloud-66.localdomain sshd[27576]: Invalid user test from 109.116.41.238 port 56004
2020-09-28T13:16:40.995016randservbullet-proofcloud-66.localdomain sshd[27576]: Failed password for invalid user test from 109.116.41.238 port 56004 ssh2
...
2020-09-28 21:18:26
39.101.67.145 attackspam
Speculative search for admin folders
2020-09-28 21:38:27
194.246.74.170 attackspambots
Automatic report - Banned IP Access
2020-09-28 21:40:19
106.75.148.111 attackspambots
106.75.148.111 (CN/China/-), 6 distributed sshd attacks on account [root] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: Sep 28 08:19:59 server5 sshd[13837]: Failed password for root from 179.243.62.83 port 28333 ssh2
Sep 28 08:17:29 server5 sshd[12669]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.158.36  user=root
Sep 28 08:17:31 server5 sshd[12669]: Failed password for root from 180.76.158.36 port 58450 ssh2
Sep 28 08:18:18 server5 sshd[13062]: Failed password for root from 62.171.148.132 port 54724 ssh2
Sep 28 08:14:43 server5 sshd[11724]: Failed password for root from 62.171.148.132 port 44784 ssh2
Sep 28 08:15:55 server5 sshd[12179]: Failed password for root from 106.75.148.111 port 47610 ssh2

IP Addresses Blocked:

179.243.62.83 (BR/Brazil/-)
180.76.158.36 (CN/China/-)
62.171.148.132 (DE/Germany/-)
2020-09-28 21:18:56
181.228.12.155 attackspambots
Invalid user giovanni from 181.228.12.155 port 50322
2020-09-28 21:37:40

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