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 of America (the)

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 <<>> 28.21.142.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 24274
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;28.21.142.42.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021700 1800 900 604800 86400

;; Query time: 34 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 17 16:40:34 CST 2025
;; MSG SIZE  rcvd: 105
Host info
Host 42.142.21.28.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 42.142.21.28.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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2019-06-24 16:57:52
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2019-06-24 17:03:54
156.198.252.47 attack
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2019-06-24 16:53:27
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Unauthorized access detected from banned ip
2019-06-24 16:50:13
201.217.4.220 attackspambots
Jun 24 06:18:20 server2 sshd[9577]: Invalid user netlogon from 201.217.4.220
Jun 24 06:18:22 server2 sshd[9577]: Failed password for invalid user netlogon from 201.217.4.220 port 38950 ssh2
Jun 24 06:18:23 server2 sshd[9577]: Received disconnect from 201.217.4.220: 11: Bye Bye [preauth]
Jun 24 06:22:46 server2 sshd[9851]: Invalid user opc from 201.217.4.220


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=201.217.4.220
2019-06-24 16:33:20
84.235.87.241 attackbotsspam
19/6/24@00:51:00: FAIL: Alarm-Intrusion address from=84.235.87.241
...
2019-06-24 16:32:30
186.232.146.144 attackspam
$f2bV_matches
2019-06-24 16:48:01
202.182.48.86 attackspam
Unauthorized access detected from banned ip
2019-06-24 16:33:52
121.122.45.221 attackbotsspam
Jun 24 01:35:25 TORMINT sshd\[14563\]: Invalid user dai from 121.122.45.221
Jun 24 01:35:25 TORMINT sshd\[14563\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.122.45.221
Jun 24 01:35:27 TORMINT sshd\[14563\]: Failed password for invalid user dai from 121.122.45.221 port 33740 ssh2
...
2019-06-24 16:37:18
193.56.28.116 attack
scan z
2019-06-24 16:45:42
122.233.151.242 attackspam
2019-06-24 dovecot_login authenticator failed for \(uvhpaotm.com\) \[122.233.151.242\]: 535 Incorrect authentication data \(set_id=**REMOVED****REMOVED****REMOVED**_perl@**REMOVED**.de\)
2019-06-24 dovecot_login authenticator failed for \(uvhpaotm.com\) \[122.233.151.242\]: 535 Incorrect authentication data \(set_id=**REMOVED****REMOVED****REMOVED**_perl@**REMOVED**.de\)
2019-06-24 dovecot_login authenticator failed for \(uvhpaotm.com\) \[122.233.151.242\]: 535 Incorrect authentication data \(set_id=**REMOVED****REMOVED****REMOVED**_perl@**REMOVED**.de\)
2019-06-24 16:36:27
173.82.173.168 attack
ssh intrusion attempt
2019-06-24 17:14:18
134.209.171.41 attackspambots
Too many connections or unauthorized access detected from Yankee banned ip
2019-06-24 16:54:52

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