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 <<>> 104.21.81.218
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29727
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.218.			IN	A

;; AUTHORITY SECTION:
.			98	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:20:28 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 218.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 218.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.133.99.4 attackbotsspam
2020-03-19 05:47:42 dovecot_login authenticator failed for \(\[45.133.99.4\]\) \[45.133.99.4\]: 535 Incorrect authentication data \(set_id=german@sensecell.de\)
2020-03-19 05:47:50 dovecot_login authenticator failed for \(\[45.133.99.4\]\) \[45.133.99.4\]: 535 Incorrect authentication data
2020-03-19 05:48:00 dovecot_login authenticator failed for \(\[45.133.99.4\]\) \[45.133.99.4\]: 535 Incorrect authentication data
2020-03-19 05:48:06 dovecot_login authenticator failed for \(\[45.133.99.4\]\) \[45.133.99.4\]: 535 Incorrect authentication data
2020-03-19 05:48:19 dovecot_login authenticator failed for \(\[45.133.99.4\]\) \[45.133.99.4\]: 535 Incorrect authentication data
...
2020-03-19 12:54:12
94.131.243.27 attackbotsspam
Mar 19 00:11:38 plusreed sshd[13711]: Invalid user chang from 94.131.243.27
...
2020-03-19 13:00:19
111.40.217.92 attack
SSH login attempts.
2020-03-19 12:46:15
124.108.21.100 attack
Mar 19 04:52:08 vpn01 sshd[29310]: Failed password for root from 124.108.21.100 port 34139 ssh2
...
2020-03-19 12:44:39
222.186.31.166 attackbotsspam
Mar 19 05:36:30 freya sshd[24169]: Disconnected from authenticating user root 222.186.31.166 port 29628 [preauth]
...
2020-03-19 12:36:51
206.214.8.13 attack
authentication failure
2020-03-19 13:05:38
150.109.150.77 attackbots
Mar 19 05:06:31 serwer sshd\[12163\]: User ftpuser from 150.109.150.77 not allowed because not listed in AllowUsers
Mar 19 05:06:31 serwer sshd\[12163\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.150.77  user=ftpuser
Mar 19 05:06:33 serwer sshd\[12163\]: Failed password for invalid user ftpuser from 150.109.150.77 port 58152 ssh2
...
2020-03-19 12:47:03
80.211.13.167 attack
$f2bV_matches
2020-03-19 12:53:43
191.253.104.228 attack
Mar 19 05:36:48 meumeu sshd[31049]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.253.104.228 
Mar 19 05:36:51 meumeu sshd[31049]: Failed password for invalid user cpanel from 191.253.104.228 port 46330 ssh2
Mar 19 05:40:31 meumeu sshd[31579]: Failed password for root from 191.253.104.228 port 12362 ssh2
...
2020-03-19 13:08:26
45.249.92.66 attackbots
Mar 19 04:48:56 h1745522 sshd[1162]: Invalid user zhangkun from 45.249.92.66 port 50542
Mar 19 04:48:56 h1745522 sshd[1162]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.249.92.66
Mar 19 04:48:56 h1745522 sshd[1162]: Invalid user zhangkun from 45.249.92.66 port 50542
Mar 19 04:48:58 h1745522 sshd[1162]: Failed password for invalid user zhangkun from 45.249.92.66 port 50542 ssh2
Mar 19 04:56:17 h1745522 sshd[1507]: Invalid user thief from 45.249.92.66 port 33180
Mar 19 04:56:17 h1745522 sshd[1507]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.249.92.66
Mar 19 04:56:17 h1745522 sshd[1507]: Invalid user thief from 45.249.92.66 port 33180
Mar 19 04:56:18 h1745522 sshd[1507]: Failed password for invalid user thief from 45.249.92.66 port 33180 ssh2
Mar 19 04:57:48 h1745522 sshd[1588]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.249.92.66  user=root
Mar 19
...
2020-03-19 12:22:34
139.155.123.84 attackbotsspam
Mar 19 04:42:04 hosting180 sshd[22853]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.155.123.84
Mar 19 04:42:04 hosting180 sshd[22853]: Invalid user patrycja from 139.155.123.84 port 37763
Mar 19 04:42:06 hosting180 sshd[22853]: Failed password for invalid user patrycja from 139.155.123.84 port 37763 ssh2
...
2020-03-19 12:27:38
132.232.93.48 attackbotsspam
Mar 18 21:37:02 home sshd[12237]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.93.48  user=root
Mar 18 21:37:05 home sshd[12237]: Failed password for root from 132.232.93.48 port 51880 ssh2
Mar 18 21:45:15 home sshd[12282]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.93.48  user=root
Mar 18 21:45:17 home sshd[12282]: Failed password for root from 132.232.93.48 port 55968 ssh2
Mar 18 21:48:23 home sshd[12300]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.93.48  user=root
Mar 18 21:48:25 home sshd[12300]: Failed password for root from 132.232.93.48 port 44053 ssh2
Mar 18 21:51:28 home sshd[12314]: Invalid user mailman from 132.232.93.48 port 60370
Mar 18 21:51:28 home sshd[12314]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.93.48
Mar 18 21:51:28 home sshd[12314]: Invalid user mailman from 132.232.93.48 port 6
2020-03-19 13:04:02
222.186.175.217 attack
Mar1905:15:35server6sshd[4559]:refusedconnectfrom222.186.175.217\(222.186.175.217\)Mar1905:15:35server6sshd[4560]:refusedconnectfrom222.186.175.217\(222.186.175.217\)Mar1905:15:35server6sshd[4561]:refusedconnectfrom222.186.175.217\(222.186.175.217\)Mar1905:29:00server6sshd[6298]:refusedconnectfrom222.186.175.217\(222.186.175.217\)Mar1905:29:00server6sshd[6299]:refusedconnectfrom222.186.175.217\(222.186.175.217\)
2020-03-19 12:34:40
138.197.33.113 attack
SSH brute force attempt
2020-03-19 13:06:09
59.127.236.228 attack
Mar 19 04:50:13 ks10 sshd[3021656]: Failed password for root from 59.127.236.228 port 50628 ssh2
...
2020-03-19 12:38:19

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