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 <<>> 104.18.21.127
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28684
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.18.21.127.			IN	A

;; AUTHORITY SECTION:
.			310	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022030800 1800 900 604800 86400

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Mar 08 14:07:37 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 127.21.18.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 127.21.18.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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81.22.45.135 attackspam
3389/tcp 3389/tcp 3389/tcp...
[2019-04-22/06-23]81pkt,1pt.(tcp)
2019-06-23 14:14:27
112.163.14.4 attackbots
9527/tcp
[2019-06-22]1pkt
2019-06-23 14:22:52
191.53.222.65 attack
$f2bV_matches
2019-06-23 13:35:52
159.65.109.148 attack
Jun 23 01:05:06 askasleikir sshd[12378]: Failed password for invalid user admin from 159.65.109.148 port 56752 ssh2
Jun 23 01:11:11 askasleikir sshd[12633]: Failed password for invalid user admin from 159.65.109.148 port 41114 ssh2
Jun 23 01:12:22 askasleikir sshd[12692]: Failed password for invalid user t7inst from 159.65.109.148 port 54968 ssh2
2019-06-23 14:21:33
111.253.1.62 attack
445/tcp
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2019-06-23 13:54:02
46.229.168.138 attackspambots
SQL Injection
2019-06-23 13:35:20
189.91.3.194 attack
SMTP-sasl brute force
...
2019-06-23 13:45:39
13.68.194.35 attackspam
proto=tcp  .  spt=50150  .  dpt=3389  .  src=13.68.194.35  .  dst=xx.xx.4.1  .     (listed on  rbldns-ru)     (32)
2019-06-23 13:27:32
205.209.174.222 attackspambots
slow and persistent scanner
2019-06-23 14:22:00
221.7.12.185 attackspam
221.7.12.185 - - \[23/Jun/2019:02:12:25 +0200\] "GET /wp-login.php HTTP/1.1" 200 1237 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
221.7.12.185 - - \[23/Jun/2019:02:12:27 +0200\] "POST /wp-login.php HTTP/1.1" 200 1632 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
221.7.12.185 - - \[23/Jun/2019:02:12:28 +0200\] "GET /wp-login.php HTTP/1.1" 200 1237 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
221.7.12.185 - - \[23/Jun/2019:02:12:29 +0200\] "POST /wp-login.php HTTP/1.1" 200 1607 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
221.7.12.185 - - \[23/Jun/2019:02:12:31 +0200\] "GET /wp-login.php HTTP/1.1" 200 1237 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
221.7.12.185 - - \[23/Jun/2019:02:12:32 +0200\] "POST /wp-login.php HTTP/1.1" 200 1608 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/
2019-06-23 13:40:02
183.99.225.177 attack
23/tcp
[2019-06-22]1pkt
2019-06-23 14:22:21
125.65.112.250 attackspambots
ports scanning
2019-06-23 13:53:37
182.253.1.213 attackspam
Jun 23 02:55:30 core01 sshd\[28765\]: Invalid user yong from 182.253.1.213 port 55594
Jun 23 02:55:30 core01 sshd\[28765\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.253.1.213
...
2019-06-23 14:12:05
1.53.102.160 attackspambots
TCP Port: 25 _    invalid blocked dnsbl-sorbs abuseat-org _  _  _ _ (24)
2019-06-23 13:58:09
181.57.178.34 attackspam
445/tcp
[2019-06-22]1pkt
2019-06-23 14:05:04

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