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: Hangzhou

Region: Zhejiang

Country: Singapore

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 <<>> 8.138.21.91
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 53826
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;8.138.21.91.			IN	A

;; AUTHORITY SECTION:
.			518	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020050101 1800 900 604800 86400

;; Query time: 129 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri May 01 16:09:10 CST 2020
;; MSG SIZE  rcvd: 115
Host info
Host 91.21.138.8.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 91.21.138.8.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
91.109.194.80 attackspambots
Unauthorized connection attempt detected from IP address 91.109.194.80 to port 80
2020-06-29 02:40:32
209.97.128.81 attackbotsspam
Unauthorized connection attempt detected from IP address 209.97.128.81 to port 23
2020-06-29 02:14:33
138.94.192.135 attack
Unauthorized connection attempt detected from IP address 138.94.192.135 to port 2323
2020-06-29 02:35:43
88.87.207.27 attackspam
Unauthorized connection attempt detected from IP address 88.87.207.27 to port 445
2020-06-29 02:22:33
45.227.155.168 attackbotsspam
Unauthorized connection attempt detected from IP address 45.227.155.168 to port 81
2020-06-29 02:25:12
78.189.158.238 attack
 TCP (SYN) 78.189.158.238:32025 -> port 23, len 44
2020-06-29 02:23:47
94.4.54.182 attack
Automatic report - Port Scan Attack
2020-06-29 02:21:06
192.241.224.185 attackspam
Unauthorized connection attempt detected from IP address 192.241.224.185 to port 4840
2020-06-29 02:28:12
70.90.62.140 attackspambots
Unauthorized connection attempt detected from IP address 70.90.62.140 to port 81
2020-06-29 02:44:28
164.132.225.250 attack
2020-06-28T16:24:41.899943randservbullet-proofcloud-66.localdomain sshd[12658]: Invalid user seafile from 164.132.225.250 port 43334
2020-06-28T16:24:41.913110randservbullet-proofcloud-66.localdomain sshd[12658]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=250.ip-164-132-225.eu
2020-06-28T16:24:41.899943randservbullet-proofcloud-66.localdomain sshd[12658]: Invalid user seafile from 164.132.225.250 port 43334
2020-06-28T16:24:43.538184randservbullet-proofcloud-66.localdomain sshd[12658]: Failed password for invalid user seafile from 164.132.225.250 port 43334 ssh2
...
2020-06-29 02:08:34
80.174.46.114 attack
Unauthorized connection attempt detected from IP address 80.174.46.114 to port 81
2020-06-29 02:23:16
91.247.233.91 attackspambots
Unauthorized connection attempt detected from IP address 91.247.233.91 to port 23
2020-06-29 02:40:05
112.66.69.16 attack
Unauthorized connection attempt detected from IP address 112.66.69.16 to port 23
2020-06-29 02:38:24
190.14.248.108 attackspam
Fail2Ban Ban Triggered
2020-06-29 02:29:08
103.145.12.145 attackbots
Triggered: repeated knocking on closed ports.
2020-06-29 02:08:57

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