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: China

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 <<>> 42.51.139.171
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40717
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;42.51.139.171.			IN	A

;; AUTHORITY SECTION:
.			29	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025053101 1800 900 604800 86400

;; Query time: 10 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Jun 01 04:30:16 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 171.139.51.42.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 171.139.51.42.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.220.101.13 attackspambots
Aug 10 16:50:31 web1 sshd\[19259\]: Invalid user cisco from 185.220.101.13
Aug 10 16:50:31 web1 sshd\[19259\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.101.13
Aug 10 16:50:32 web1 sshd\[19259\]: Failed password for invalid user cisco from 185.220.101.13 port 38272 ssh2
Aug 10 16:50:35 web1 sshd\[19261\]: Invalid user c-comatic from 185.220.101.13
Aug 10 16:50:35 web1 sshd\[19261\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.101.13
2019-08-11 00:20:58
2603:1026:c03:480e::5 attack
failed_logins
2019-08-11 00:41:31
186.193.7.98 attack
SPF Fail sender not permitted to send mail for @1919ic.com / Mail sent to address hacked/leaked from Last.fm
2019-08-11 00:36:12
190.13.129.34 attack
Aug 10 17:56:27 legacy sshd[5830]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.13.129.34
Aug 10 17:56:30 legacy sshd[5830]: Failed password for invalid user steam from 190.13.129.34 port 34504 ssh2
Aug 10 18:02:15 legacy sshd[5931]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.13.129.34
...
2019-08-11 00:15:58
94.21.41.85 attackspambots
SSH Brute Force
2019-08-11 00:30:44
218.145.5.36 attack
WordPress wp-login brute force :: 218.145.5.36 0.304 BYPASS [10/Aug/2019:22:17:28  1000] [censored_1] "POST /wp-login.php HTTP/1.1" 200 3972 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-08-11 00:43:38
139.59.79.212 attackspambots
Mar  5 02:58:31 motanud sshd\[2433\]: Invalid user cron from 139.59.79.212 port 52190
Mar  5 02:58:31 motanud sshd\[2433\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.79.212
Mar  5 02:58:33 motanud sshd\[2433\]: Failed password for invalid user cron from 139.59.79.212 port 52190 ssh2
2019-08-11 00:16:52
81.28.107.242 attackspambots
Aug 10 14:18:08 server postfix/smtpd[18882]: NOQUEUE: reject: RCPT from capable.debramand.com[81.28.107.242]: 554 5.7.1 Service unavailable; Client host [81.28.107.242] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
2019-08-11 00:19:16
92.222.75.72 attackspambots
Automatic report - Banned IP Access
2019-08-11 01:12:19
165.227.159.16 attack
Aug 10 17:57:27 ks10 sshd[32509]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.159.16 
Aug 10 17:57:29 ks10 sshd[32509]: Failed password for invalid user fawad from 165.227.159.16 port 36260 ssh2
...
2019-08-11 00:32:38
66.165.213.84 attackspam
ssh failed login
2019-08-11 00:19:51
139.59.68.135 attack
Mar  5 19:51:24 motanud sshd\[21240\]: Invalid user demo1 from 139.59.68.135 port 53020
Mar  5 19:51:24 motanud sshd\[21240\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.68.135
Mar  5 19:51:26 motanud sshd\[21240\]: Failed password for invalid user demo1 from 139.59.68.135 port 53020 ssh2
2019-08-11 01:12:59
165.22.99.87 attackbotsspam
Aug 10 20:01:18 www sshd\[146350\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.99.87  user=root
Aug 10 20:01:20 www sshd\[146350\]: Failed password for root from 165.22.99.87 port 33862 ssh2
Aug 10 20:06:30 www sshd\[146424\]: Invalid user tryit from 165.22.99.87
...
2019-08-11 01:13:59
47.28.217.40 attack
Aug 10 18:29:08 OPSO sshd\[10608\]: Invalid user ncim from 47.28.217.40 port 58254
Aug 10 18:29:09 OPSO sshd\[10608\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=47.28.217.40
Aug 10 18:29:10 OPSO sshd\[10608\]: Failed password for invalid user ncim from 47.28.217.40 port 58254 ssh2
Aug 10 18:35:53 OPSO sshd\[11462\]: Invalid user mozilla from 47.28.217.40 port 49402
Aug 10 18:35:53 OPSO sshd\[11462\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=47.28.217.40
2019-08-11 00:48:56
205.185.127.219 attackspambots
Aug 10 17:33:56 herz-der-gamer sshd[17126]: Invalid user hunter from 205.185.127.219 port 57524
Aug 10 17:33:56 herz-der-gamer sshd[17126]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=205.185.127.219
Aug 10 17:33:56 herz-der-gamer sshd[17126]: Invalid user hunter from 205.185.127.219 port 57524
Aug 10 17:33:59 herz-der-gamer sshd[17126]: Failed password for invalid user hunter from 205.185.127.219 port 57524 ssh2
...
2019-08-11 00:39:03

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