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: Japan

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 <<>> 140.81.105.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40036
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;140.81.105.21.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025032800 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Mar 29 00:24:57 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 21.105.81.140.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.105.81.140.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
139.199.113.140 attackspambots
Dec 15 08:53:48 cp sshd[13927]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.113.140
2019-12-15 16:44:43
164.164.122.43 attackspam
Dec 14 22:34:11 auw2 sshd\[17915\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.164.122.43  user=root
Dec 14 22:34:13 auw2 sshd\[17915\]: Failed password for root from 164.164.122.43 port 38502 ssh2
Dec 14 22:41:00 auw2 sshd\[18617\]: Invalid user test from 164.164.122.43
Dec 14 22:41:00 auw2 sshd\[18617\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.164.122.43
Dec 14 22:41:03 auw2 sshd\[18617\]: Failed password for invalid user test from 164.164.122.43 port 44698 ssh2
2019-12-15 16:56:13
218.241.134.34 attack
Dec 15 07:17:03 mail1 sshd\[10944\]: Invalid user kanemasu from 218.241.134.34 port 47766
Dec 15 07:17:03 mail1 sshd\[10944\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.241.134.34
Dec 15 07:17:05 mail1 sshd\[10944\]: Failed password for invalid user kanemasu from 218.241.134.34 port 47766 ssh2
Dec 15 07:28:41 mail1 sshd\[16231\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.241.134.34  user=root
Dec 15 07:28:43 mail1 sshd\[16231\]: Failed password for root from 218.241.134.34 port 48083 ssh2
...
2019-12-15 16:42:58
80.211.79.117 attack
Dec 15 09:47:23 markkoudstaal sshd[29139]: Failed password for root from 80.211.79.117 port 60662 ssh2
Dec 15 09:52:59 markkoudstaal sshd[30125]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.79.117
Dec 15 09:53:01 markkoudstaal sshd[30125]: Failed password for invalid user alard from 80.211.79.117 port 40006 ssh2
2019-12-15 17:09:06
117.36.202.27 attackbots
Scanning
2019-12-15 17:18:03
154.66.113.78 attack
<6 unauthorized SSH connections
2019-12-15 17:10:07
210.245.26.142 attack
Dec 15 09:23:35 mc1 kernel: \[557042.726772\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=210.245.26.142 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=63968 PROTO=TCP SPT=56123 DPT=6958 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec 15 09:27:10 mc1 kernel: \[557257.980477\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=210.245.26.142 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=47200 PROTO=TCP SPT=56123 DPT=6920 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec 15 09:28:56 mc1 kernel: \[557363.543392\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=210.245.26.142 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=3563 PROTO=TCP SPT=56123 DPT=7909 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-12-15 17:17:18
67.170.245.69 attackbotsspam
Dec 15 10:15:54 MK-Soft-Root1 sshd[3532]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.170.245.69 
Dec 15 10:15:55 MK-Soft-Root1 sshd[3532]: Failed password for invalid user operator from 67.170.245.69 port 44404 ssh2
...
2019-12-15 17:16:20
222.186.42.4 attackbotsspam
Dec 15 08:44:33 zeus sshd[28228]: Failed password for root from 222.186.42.4 port 50492 ssh2
Dec 15 08:44:38 zeus sshd[28228]: Failed password for root from 222.186.42.4 port 50492 ssh2
Dec 15 08:44:42 zeus sshd[28228]: Failed password for root from 222.186.42.4 port 50492 ssh2
Dec 15 08:44:47 zeus sshd[28228]: Failed password for root from 222.186.42.4 port 50492 ssh2
Dec 15 08:44:50 zeus sshd[28228]: Failed password for root from 222.186.42.4 port 50492 ssh2
2019-12-15 16:45:15
112.85.42.173 attack
Fail2Ban - SSH Bruteforce Attempt
2019-12-15 17:20:10
177.206.230.237 attack
1576391317 - 12/15/2019 07:28:37 Host: 177.206.230.237/177.206.230.237 Port: 23 TCP Blocked
2019-12-15 16:48:49
188.166.8.178 attackbots
Dec 15 02:54:48 linuxvps sshd\[39775\]: Invalid user baroody from 188.166.8.178
Dec 15 02:54:48 linuxvps sshd\[39775\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.8.178
Dec 15 02:54:51 linuxvps sshd\[39775\]: Failed password for invalid user baroody from 188.166.8.178 port 41208 ssh2
Dec 15 03:00:10 linuxvps sshd\[43376\]: Invalid user ts3server from 188.166.8.178
Dec 15 03:00:10 linuxvps sshd\[43376\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.8.178
2019-12-15 16:52:17
39.76.179.253 attack
FTP Brute Force
2019-12-15 16:47:36
120.92.33.13 attackbots
Dec 15 09:29:50 h2177944 sshd\[10893\]: Invalid user pepin from 120.92.33.13 port 39892
Dec 15 09:29:50 h2177944 sshd\[10893\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.33.13
Dec 15 09:29:51 h2177944 sshd\[10893\]: Failed password for invalid user pepin from 120.92.33.13 port 39892 ssh2
Dec 15 09:39:33 h2177944 sshd\[11458\]: Invalid user jjjjjjjjj from 120.92.33.13 port 29026
...
2019-12-15 17:11:37
51.75.17.228 attack
Dec 15 07:43:03 markkoudstaal sshd[12653]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.17.228
Dec 15 07:43:05 markkoudstaal sshd[12653]: Failed password for invalid user skaarberg from 51.75.17.228 port 35713 ssh2
Dec 15 07:47:54 markkoudstaal sshd[13295]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.17.228
2019-12-15 17:00:09

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