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: None

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 <<>> 104.21.57.23
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19029
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.23.			IN	A

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

;; Query time: 24 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 00:33:48 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 23.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 23.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
41.93.48.73 attackbots
Nov 21 11:26:59 gw1 sshd[580]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.93.48.73
Nov 21 11:27:01 gw1 sshd[580]: Failed password for invalid user tarant from 41.93.48.73 port 47258 ssh2
...
2019-11-21 17:11:31
203.91.114.6 attack
Nov 21 10:18:03 lnxded64 sshd[17258]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.91.114.6
2019-11-21 17:30:44
46.0.203.166 attackbotsspam
Nov 21 09:01:04 server sshd\[15771\]: Invalid user barawi from 46.0.203.166
Nov 21 09:01:04 server sshd\[15771\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.0.203.166 
Nov 21 09:01:07 server sshd\[15771\]: Failed password for invalid user barawi from 46.0.203.166 port 47948 ssh2
Nov 21 09:27:12 server sshd\[21925\]: Invalid user zx from 46.0.203.166
Nov 21 09:27:12 server sshd\[21925\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.0.203.166 
...
2019-11-21 17:01:17
129.28.78.8 attack
2019-11-21T08:29:47.206591centos sshd\[16565\]: Invalid user lizeth from 129.28.78.8 port 56210
2019-11-21T08:29:47.210899centos sshd\[16565\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.78.8
2019-11-21T08:29:49.208610centos sshd\[16565\]: Failed password for invalid user lizeth from 129.28.78.8 port 56210 ssh2
2019-11-21 17:08:16
175.181.103.89 attackbots
Nov 19 12:34:20 mxgate1 postfix/postscreen[2415]: CONNECT from [175.181.103.89]:32581 to [176.31.12.44]:25
Nov 19 12:34:20 mxgate1 postfix/dnsblog[2418]: addr 175.181.103.89 listed by domain zen.spamhaus.org as 127.0.0.4
Nov 19 12:34:20 mxgate1 postfix/dnsblog[2418]: addr 175.181.103.89 listed by domain zen.spamhaus.org as 127.0.0.11
Nov 19 12:34:20 mxgate1 postfix/dnsblog[2420]: addr 175.181.103.89 listed by domain cbl.abuseat.org as 127.0.0.2
Nov 19 12:34:20 mxgate1 postfix/dnsblog[2417]: addr 175.181.103.89 listed by domain b.barracudacentral.org as 127.0.0.2
Nov 19 12:34:26 mxgate1 postfix/postscreen[2415]: DNSBL rank 4 for [175.181.103.89]:32581
Nov x@x
Nov 19 12:34:28 mxgate1 postfix/postscreen[2415]: HANGUP after 2 from [175.181.103.89]:32581 in tests after SMTP handshake
Nov 19 12:34:28 mxgate1 postfix/postscreen[2415]: DISCONNECT [175.181.103.89]:32581


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=175.181.103.89
2019-11-21 17:26:32
71.6.158.166 attack
11/21/2019-09:21:40.819365 71.6.158.166 Protocol: 17 ET CINS Active Threat Intelligence Poor Reputation IP group 71
2019-11-21 17:08:46
172.172.26.144 attack
Honeypot attack, port: 23, PTR: PTR record not found
2019-11-21 17:21:33
45.136.109.9 attackbots
Microsoft-Windows-Security-Auditing
2019-11-21 17:07:13
218.104.231.2 attackbots
Nov 21 09:31:15 MK-Soft-VM6 sshd[28654]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.104.231.2 
Nov 21 09:31:17 MK-Soft-VM6 sshd[28654]: Failed password for invalid user server from 218.104.231.2 port 38133 ssh2
...
2019-11-21 17:14:01
223.71.167.154 attackbotsspam
83/tcp 9876/tcp 7170/tcp...
[2019-11-19/21]42pkt,31pt.(tcp),5pt.(udp)
2019-11-21 17:15:33
209.45.76.201 attackspam
Nov 19 12:32:29 mxgate1 postfix/postscreen[2415]: CONNECT from [209.45.76.201]:20830 to [176.31.12.44]:25
Nov 19 12:32:29 mxgate1 postfix/dnsblog[2418]: addr 209.45.76.201 listed by domain zen.spamhaus.org as 127.0.0.3
Nov 19 12:32:29 mxgate1 postfix/dnsblog[2418]: addr 209.45.76.201 listed by domain zen.spamhaus.org as 127.0.0.4
Nov 19 12:32:29 mxgate1 postfix/dnsblog[2417]: addr 209.45.76.201 listed by domain cbl.abuseat.org as 127.0.0.2
Nov 19 12:32:29 mxgate1 postfix/dnsblog[2419]: addr 209.45.76.201 listed by domain b.barracudacentral.org as 127.0.0.2
Nov 19 12:32:35 mxgate1 postfix/postscreen[2415]: DNSBL rank 4 for [209.45.76.201]:20830
Nov x@x
Nov 19 12:32:36 mxgate1 postfix/postscreen[2415]: HANGUP after 1.1 from [209.45.76.201]:20830 in tests after SMTP handshake
Nov 19 12:32:36 mxgate1 postfix/postscreen[2415]: DISCONNECT [209.45.76.201]:20830


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=209.45.76.201
2019-11-21 17:21:10
95.19.153.67 attackbots
Lines containing failures of 95.19.153.67
Nov 19 12:19:45 server01 postfix/smtpd[21682]: connect from 67.153.19.95.dynamic.jazztel.es[95.19.153.67]
Nov x@x
Nov x@x
Nov 19 12:19:46 server01 postfix/policy-spf[21686]: : Policy action=550 Please see hxxp://www.openspf.org/Why?s=mfrom;id=837%40iberhardware.com;ip=95.19.153.67;r=server01.2800km.de
Nov x@x
Nov 19 12:19:46 server01 postfix/smtpd[21682]: lost connection after DATA from 67.153.19.95.dynamic.jazztel.es[95.19.153.67]
Nov 19 12:19:46 server01 postfix/smtpd[21682]: disconnect from 67.153.19.95.dynamic.jazztel.es[95.19.153.67]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=95.19.153.67
2019-11-21 16:52:11
68.183.86.76 attackspambots
2019-11-21T08:05:59.829551shield sshd\[4641\]: Invalid user chunglin from 68.183.86.76 port 45258
2019-11-21T08:05:59.835832shield sshd\[4641\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.86.76
2019-11-21T08:06:02.013391shield sshd\[4641\]: Failed password for invalid user chunglin from 68.183.86.76 port 45258 ssh2
2019-11-21T08:10:14.164232shield sshd\[5071\]: Invalid user admin1234 from 68.183.86.76 port 53730
2019-11-21T08:10:14.168472shield sshd\[5071\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.86.76
2019-11-21 17:12:57
3.89.232.230 attackspam
TCP Port Scanning
2019-11-21 17:12:05
120.151.181.60 attackspam
Microsoft-Windows-Security-Auditing
2019-11-21 17:08:30

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