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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.33.43
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 44345
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.33.43.			IN	A

;; AUTHORITY SECTION:
.			547	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022401 1800 900 604800 86400

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 25 11:55:54 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 43.33.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 43.33.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
49.144.175.196 attackbots
Jan  1 05:58:24 mail kernel: [2874445.649777] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=49.144.175.196 DST=91.205.173.180 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=4317 DF PROTO=TCP SPT=11209 DPT=1433 WINDOW=8192 RES=0x00 SYN URGP=0 
Jan  1 05:58:27 mail kernel: [2874448.705373] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=49.144.175.196 DST=91.205.173.180 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=5604 DF PROTO=TCP SPT=11209 DPT=1433 WINDOW=8192 RES=0x00 SYN URGP=0 
Jan  1 05:58:33 mail kernel: [2874454.705382] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=49.144.175.196 DST=91.205.173.180 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=8191 DF PROTO=TCP SPT=11209 DPT=1433 WINDOW=8192 RES=0x00 SYN URGP=0
2020-01-01 13:12:47
221.120.236.50 attack
Jan  1 07:39:57 server sshd\[20366\]: Invalid user webmaster from 221.120.236.50
Jan  1 07:39:57 server sshd\[20366\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.120.236.50 
Jan  1 07:40:00 server sshd\[20366\]: Failed password for invalid user webmaster from 221.120.236.50 port 1860 ssh2
Jan  1 07:58:25 server sshd\[24692\]: Invalid user melissa from 221.120.236.50
Jan  1 07:58:25 server sshd\[24692\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.120.236.50 
...
2020-01-01 13:15:42
165.227.93.39 attackbotsspam
2020-01-01T00:34:48.905920homeassistant sshd[10907]: Invalid user mims from 165.227.93.39 port 41890
2020-01-01T00:34:48.912251homeassistant sshd[10907]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.93.39
...
2020-01-01 09:21:58
203.133.51.8 attack
12/31/2019-23:49:30.279840 203.133.51.8 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433
2020-01-01 09:17:53
80.211.9.126 attackbots
Jan  1 05:58:49 lnxded64 sshd[27400]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.9.126
2020-01-01 13:07:19
46.38.144.179 attackbots
Jan  1 01:57:27 relay postfix/smtpd\[28727\]: warning: unknown\[46.38.144.179\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan  1 01:58:13 relay postfix/smtpd\[14388\]: warning: unknown\[46.38.144.179\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan  1 02:00:45 relay postfix/smtpd\[28727\]: warning: unknown\[46.38.144.179\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan  1 02:01:30 relay postfix/smtpd\[14396\]: warning: unknown\[46.38.144.179\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan  1 02:04:02 relay postfix/smtpd\[5735\]: warning: unknown\[46.38.144.179\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-01-01 09:07:58
222.186.173.238 attack
Jan  1 01:13:15 marvibiene sshd[9500]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.238  user=root
Jan  1 01:13:17 marvibiene sshd[9500]: Failed password for root from 222.186.173.238 port 12132 ssh2
Jan  1 01:13:20 marvibiene sshd[9500]: Failed password for root from 222.186.173.238 port 12132 ssh2
Jan  1 01:13:15 marvibiene sshd[9500]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.238  user=root
Jan  1 01:13:17 marvibiene sshd[9500]: Failed password for root from 222.186.173.238 port 12132 ssh2
Jan  1 01:13:20 marvibiene sshd[9500]: Failed password for root from 222.186.173.238 port 12132 ssh2
...
2020-01-01 09:17:34
66.249.79.54 attackbotsspam
Automatic report - Banned IP Access
2020-01-01 09:13:59
212.156.115.102 attack
Jan  1 01:56:20 root sshd[10841]: Failed password for mail from 212.156.115.102 port 54175 ssh2
Jan  1 02:01:29 root sshd[10872]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.156.115.102 
Jan  1 02:01:31 root sshd[10872]: Failed password for invalid user shonda from 212.156.115.102 port 39057 ssh2
...
2020-01-01 09:20:08
106.13.4.150 attackspambots
Jan  1 00:02:29 srv-ubuntu-dev3 sshd[101129]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.4.150  user=root
Jan  1 00:02:32 srv-ubuntu-dev3 sshd[101129]: Failed password for root from 106.13.4.150 port 33735 ssh2
Jan  1 00:05:40 srv-ubuntu-dev3 sshd[101331]: Invalid user kim from 106.13.4.150
Jan  1 00:05:40 srv-ubuntu-dev3 sshd[101331]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.4.150
Jan  1 00:05:40 srv-ubuntu-dev3 sshd[101331]: Invalid user kim from 106.13.4.150
Jan  1 00:05:42 srv-ubuntu-dev3 sshd[101331]: Failed password for invalid user kim from 106.13.4.150 port 55237 ssh2
Jan  1 00:08:52 srv-ubuntu-dev3 sshd[101630]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.4.150  user=uucp
Jan  1 00:08:55 srv-ubuntu-dev3 sshd[101630]: Failed password for uucp from 106.13.4.150 port 20200 ssh2
Jan  1 00:12:05 srv-ubuntu-dev3 sshd[102063]: In
...
2020-01-01 09:12:47
185.162.171.140 attackspambots
fail2ban honeypot
2020-01-01 13:14:30
184.105.247.219 attack
Honeypot hit.
2020-01-01 13:00:59
139.199.14.128 attackspam
SSH authentication failure x 6 reported by Fail2Ban
...
2020-01-01 09:10:40
106.12.31.173 attackspambots
$f2bV_matches
2020-01-01 09:07:05
14.161.139.132 attack
Dec 31 22:58:50 mailman postfix/smtpd[29679]: warning: unknown[14.161.139.132]: SASL PLAIN authentication failed: authentication failure
2020-01-01 13:06:40

Recently Reported IPs

103.154.184.219 103.154.36.91 103.154.184.203 103.154.58.186
103.154.54.116 103.154.251.104 103.154.37.43 103.154.27.204
103.155.151.23 103.155.131.146 72.86.184.104 103.155.84.248
103.155.20.194 103.155.222.135 103.155.151.26 104.21.33.56
103.155.210.2 103.154.94.141 103.155.102.34 103.155.93.236