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 <<>> 104.21.53.223
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 43509
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.53.223.			IN	A

;; AUTHORITY SECTION:
.			448	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 23:59:10 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 223.53.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 223.53.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.143.223.173 attackspam
2020-03-01T10:00:14.927615+01:00 lumpi kernel: [8343031.745530] INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=185.143.223.173 DST=78.46.199.189 LEN=60 TOS=0x00 PREC=0x00 TTL=55 ID=36334 DF PROTO=TCP SPT=6110 DPT=25 WINDOW=7300 RES=0x00 SYN URGP=0 
...
2020-03-01 17:45:12
49.88.112.55 attackspambots
$f2bV_matches
2020-03-01 17:39:22
124.113.219.208 attackspam
Mar  1 05:53:18 grey postfix/smtpd\[2694\]: NOQUEUE: reject: RCPT from unknown\[124.113.219.208\]: 554 5.7.1 Service unavailable\; Client host \[124.113.219.208\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[124.113.219.208\]\; from=\ to=\ proto=SMTP helo=\
...
2020-03-01 18:02:01
49.234.179.127 attack
Feb 29 23:57:31 tdfoods sshd\[7835\]: Invalid user nextcloud from 49.234.179.127
Feb 29 23:57:31 tdfoods sshd\[7835\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.179.127
Feb 29 23:57:33 tdfoods sshd\[7835\]: Failed password for invalid user nextcloud from 49.234.179.127 port 37760 ssh2
Mar  1 00:04:00 tdfoods sshd\[8342\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.179.127  user=root
Mar  1 00:04:03 tdfoods sshd\[8342\]: Failed password for root from 49.234.179.127 port 44344 ssh2
2020-03-01 18:13:45
117.159.5.113 attackbotsspam
Unauthorized connection attempt detected from IP address 117.159.5.113 to port 1433 [J]
2020-03-01 17:40:02
91.108.155.43 attackbotsspam
Mar  1 14:17:05 gw1 sshd[27381]: Failed password for root from 91.108.155.43 port 43332 ssh2
...
2020-03-01 17:49:25
181.91.58.65 attackspambots
Unauthorized connection attempt detected from IP address 181.91.58.65 to port 23 [J]
2020-03-01 17:53:54
14.160.29.246 attackbots
$f2bV_matches
2020-03-01 17:50:27
80.82.65.74 attack
firewall-block, port(s): 3006/tcp, 4004/tcp, 6011/tcp, 8091/tcp
2020-03-01 18:11:20
51.83.98.104 attack
Mar  1 10:39:42 MK-Soft-VM4 sshd[30136]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.98.104 
Mar  1 10:39:44 MK-Soft-VM4 sshd[30136]: Failed password for invalid user ftp from 51.83.98.104 port 59244 ssh2
...
2020-03-01 18:07:30
222.186.30.35 attackspam
Mar  1 06:43:52 firewall sshd[29367]: Failed password for root from 222.186.30.35 port 30530 ssh2
Mar  1 06:43:55 firewall sshd[29367]: Failed password for root from 222.186.30.35 port 30530 ssh2
Mar  1 06:43:57 firewall sshd[29367]: Failed password for root from 222.186.30.35 port 30530 ssh2
...
2020-03-01 17:55:56
192.241.211.169 attackbots
8022/tcp 2376/tcp 8008/tcp...
[2020-02-01/03-01]20pkt,19pt.(tcp),1pt.(udp)
2020-03-01 17:41:21
79.170.40.224 attackbots
Automatic report - XMLRPC Attack
2020-03-01 17:55:05
184.154.47.4 attackbots
5900/tcp 8880/tcp 5000/tcp...
[2019-12-31/2020-03-01]14pkt,13pt.(tcp)
2020-03-01 17:30:01
42.117.229.59 attack
Unauthorized connection attempt detected from IP address 42.117.229.59 to port 23 [J]
2020-03-01 17:46:23

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