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 of America (the)

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 <<>> 21.208.173.104
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 42520
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.208.173.104.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025010602 1800 900 604800 86400

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Jan 07 12:18:22 CST 2025
;; MSG SIZE  rcvd: 107
Host info
Host 104.173.208.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 104.173.208.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
98.189.134.115 attackbotsspam
Unauthorized connection attempt detected from IP address 98.189.134.115 to port 2220 [J]
2020-01-16 04:00:10
189.27.9.194 attack
Unauthorized connection attempt detected from IP address 189.27.9.194 to port 8080 [J]
2020-01-16 04:09:41
81.12.32.244 attackbots
port scan and connect, tcp 80 (http)
2020-01-16 04:04:35
167.71.72.70 attackbots
$f2bV_matches
2020-01-16 04:02:56
186.122.148.9 attackbots
Jan 15 20:11:49 vtv3 sshd[2735]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.122.148.9 
Jan 15 20:11:50 vtv3 sshd[2735]: Failed password for invalid user localhost from 186.122.148.9 port 41138 ssh2
Jan 15 20:19:10 vtv3 sshd[6106]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.122.148.9 
Jan 15 20:30:25 vtv3 sshd[11737]: Failed password for root from 186.122.148.9 port 59202 ssh2
Jan 15 20:34:22 vtv3 sshd[13361]: Failed password for mail from 186.122.148.9 port 53074 ssh2
Jan 15 20:49:32 vtv3 sshd[20639]: Failed password for root from 186.122.148.9 port 50670 ssh2
Jan 15 20:53:27 vtv3 sshd[22536]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.122.148.9 
Jan 15 20:53:30 vtv3 sshd[22536]: Failed password for invalid user administrator from 186.122.148.9 port 44542 ssh2
Jan 15 21:04:30 vtv3 sshd[27898]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=s
2020-01-16 03:48:18
95.79.98.213 attack
Unauthorized connection attempt detected from IP address 95.79.98.213 to port 5555 [J]
2020-01-16 04:15:17
181.31.222.94 attackbots
Unauthorized connection attempt detected from IP address 181.31.222.94 to port 23 [J]
2020-01-16 04:11:09
193.227.20.185 attackspam
Unauthorized connection attempt detected from IP address 193.227.20.185 to port 445
2020-01-16 04:08:36
168.235.111.4 attackbots
Ping Sweep
2020-01-16 04:05:06
59.36.75.227 attack
Unauthorized connection attempt detected from IP address 59.36.75.227 to port 2220 [J]
2020-01-16 03:55:05
86.101.240.219 attack
Unauthorized connection attempt detected from IP address 86.101.240.219 to port 23
2020-01-16 04:17:16
201.253.222.145 attackspambots
Unauthorized connection attempt detected from IP address 201.253.222.145 to port 23
2020-01-16 04:26:43
195.158.109.29 attack
Unauthorized connection attempt detected from IP address 195.158.109.29 to port 80 [J]
2020-01-16 04:08:09
79.0.173.121 attack
Unauthorized connection attempt detected from IP address 79.0.173.121 to port 8080 [J]
2020-01-16 04:19:40
198.108.66.26 attack
Jan 15 14:07:07 debian-2gb-nbg1-2 kernel: \[1352925.239859\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=198.108.66.26 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=54321 PROTO=TCP SPT=57679 DPT=8883 WINDOW=65535 RES=0x00 SYN URGP=0
2020-01-16 04:05:30

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