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 <<>> 104.21.81.156
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 59253
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.156.			IN	A

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

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:14 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 156.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 156.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
77.254.40.157 attack
Port probing on unauthorized port 81
2020-03-31 22:21:05
172.172.26.132 attackspam
23/tcp
[2020-03-31]1pkt
2020-03-31 22:04:16
177.92.4.106 attackbotsspam
Mar 31 09:44:06 askasleikir sshd[172776]: Failed password for root from 177.92.4.106 port 33672 ssh2
2020-03-31 22:45:36
58.186.126.121 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-03-31 21:51:30
106.12.167.2 attack
9022/tcp
[2020-03-31]1pkt
2020-03-31 22:15:44
219.73.51.238 attackbotsspam
Honeypot attack, port: 5555, PTR: n219073051238.netvigator.com.
2020-03-31 22:53:01
92.118.38.66 attackspambots
Mar 31 16:11:58 mail postfix/smtpd\[31820\]: warning: unknown\[92.118.38.66\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 31 16:42:01 mail postfix/smtpd\[32567\]: warning: unknown\[92.118.38.66\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 31 16:42:43 mail postfix/smtpd\[32681\]: warning: unknown\[92.118.38.66\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 31 16:43:26 mail postfix/smtpd\[32507\]: warning: unknown\[92.118.38.66\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
2020-03-31 22:52:33
222.29.159.167 attack
fail2ban
2020-03-31 22:29:06
106.13.41.42 attackbots
Mar 31 16:04:59 markkoudstaal sshd[30024]: Failed password for root from 106.13.41.42 port 57058 ssh2
Mar 31 16:07:39 markkoudstaal sshd[30385]: Failed password for root from 106.13.41.42 port 54524 ssh2
Mar 31 16:10:03 markkoudstaal sshd[30766]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.41.42
2020-03-31 22:26:04
114.32.86.201 attackspam
Honeypot attack, port: 4567, PTR: 114-32-86-201.HINET-IP.hinet.net.
2020-03-31 22:15:14
159.65.181.225 attackbots
Mar 31 14:24:24 meumeu sshd[28005]: Failed password for root from 159.65.181.225 port 44990 ssh2
Mar 31 14:28:27 meumeu sshd[28574]: Failed password for root from 159.65.181.225 port 58394 ssh2
...
2020-03-31 22:13:57
100.0.180.143 attack
Mar 31 16:34:31 vps647732 sshd[32650]: Failed password for root from 100.0.180.143 port 41218 ssh2
...
2020-03-31 22:51:39
122.51.240.151 attackbotsspam
Mar 31 15:18:18 haigwepa sshd[4990]: Failed password for root from 122.51.240.151 port 40964 ssh2
...
2020-03-31 22:28:13
64.225.102.65 attackbots
03/31/2020-08:33:36.490093 64.225.102.65 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-03-31 22:48:01
112.85.42.238 attackbotsspam
Mar 31 15:01:08 ncomp sshd[31534]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.238  user=root
Mar 31 15:01:09 ncomp sshd[31534]: Failed password for root from 112.85.42.238 port 54081 ssh2
Mar 31 15:02:30 ncomp sshd[31599]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.238  user=root
Mar 31 15:02:32 ncomp sshd[31599]: Failed password for root from 112.85.42.238 port 12453 ssh2
2020-03-31 21:47:57

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