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 <<>> 104.21.16.100
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10566
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.100.			IN	A

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

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:12:16 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 100.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 100.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
134.209.75.77 attack
Dec  8 13:34:37 plusreed sshd[6081]: Invalid user watte from 134.209.75.77
...
2019-12-09 02:45:57
103.250.36.113 attackbots
Dec  8 13:05:41 plusreed sshd[30910]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.250.36.113  user=root
Dec  8 13:05:43 plusreed sshd[30910]: Failed password for root from 103.250.36.113 port 34369 ssh2
...
2019-12-09 02:22:18
118.24.3.193 attackspam
Dec  8 18:04:43 MK-Soft-Root2 sshd[5239]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.3.193 
Dec  8 18:04:45 MK-Soft-Root2 sshd[5239]: Failed password for invalid user elio from 118.24.3.193 port 60142 ssh2
...
2019-12-09 02:14:37
159.65.152.201 attack
Dec  8 19:32:47 ns382633 sshd\[13261\]: Invalid user guest from 159.65.152.201 port 50480
Dec  8 19:32:47 ns382633 sshd\[13261\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.152.201
Dec  8 19:32:49 ns382633 sshd\[13261\]: Failed password for invalid user guest from 159.65.152.201 port 50480 ssh2
Dec  8 19:40:27 ns382633 sshd\[14967\]: Invalid user yarian from 159.65.152.201 port 49334
Dec  8 19:40:27 ns382633 sshd\[14967\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.152.201
2019-12-09 02:45:02
39.118.39.170 attackspambots
Dec  8 06:09:47 web1 sshd\[17218\]: Invalid user yz from 39.118.39.170
Dec  8 06:09:47 web1 sshd\[17218\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=39.118.39.170
Dec  8 06:09:48 web1 sshd\[17218\]: Failed password for invalid user yz from 39.118.39.170 port 56714 ssh2
Dec  8 06:16:33 web1 sshd\[17984\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=39.118.39.170  user=root
Dec  8 06:16:35 web1 sshd\[17984\]: Failed password for root from 39.118.39.170 port 39310 ssh2
2019-12-09 02:11:11
122.51.36.240 attackspam
Dec  8 18:49:21 master sshd[1899]: Failed password for invalid user toshio from 122.51.36.240 port 60944 ssh2
2019-12-09 02:39:41
105.225.11.74 attackspambots
Automatic report - Port Scan Attack
2019-12-09 02:49:51
111.230.53.144 attackspambots
2019-12-08T18:15:49.192960abusebot-7.cloudsearch.cf sshd\[28276\]: Invalid user tavarius from 111.230.53.144 port 35394
2019-12-09 02:48:03
150.129.185.6 attack
Dec  7 22:34:32 km20725 sshd[29547]: Failed password for mysql from 150.129.185.6 port 59190 ssh2
Dec  7 22:34:33 km20725 sshd[29547]: Received disconnect from 150.129.185.6: 11: Bye Bye [preauth]
Dec  7 22:46:16 km20725 sshd[30605]: Failed password for www-data from 150.129.185.6 port 43606 ssh2
Dec  7 22:46:16 km20725 sshd[30605]: Received disconnect from 150.129.185.6: 11: Bye Bye [preauth]
Dec  7 22:52:33 km20725 sshd[30944]: Invalid user lachaume from 150.129.185.6
Dec  7 22:52:35 km20725 sshd[30944]: Failed password for invalid user lachaume from 150.129.185.6 port 53972 ssh2
Dec  7 22:52:36 km20725 sshd[30944]: Received disconnect from 150.129.185.6: 11: Bye Bye [preauth]
Dec  7 22:58:46 km20725 sshd[31273]: Invalid user mohanasundram from 150.129.185.6
Dec  7 22:58:48 km20725 sshd[31273]: Failed password for invalid user mohanasundram from 150.129.185.6 port 35960 ssh2
Dec  7 22:58:49 km20725 sshd[31273]: Received disconnect from 150.129.185.6: 11: Bye Bye [prea........
-------------------------------
2019-12-09 02:17:05
185.143.223.154 attackspambots
Dec  8 15:52:54 vmd46246 kernel: [51588.750818] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:fb:88:28:99:3a:4d:30:af:08:00 SRC=185.143.223.154 DST=144.91.112.181 LEN=40 TOS=0x00 PREC=0x00 TTL=252 ID=34429 PROTO=TCP SPT=41724 DPT=1101 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec  8 15:53:33 vmd46246 kernel: [51627.825657] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:fb:88:28:99:3a:4d:30:af:08:00 SRC=185.143.223.154 DST=144.91.112.181 LEN=40 TOS=0x00 PREC=0x00 TTL=252 ID=4288 PROTO=TCP SPT=41724 DPT=29992 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec  8 15:53:57 vmd46246 kernel: [51652.136164] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:fb:88:28:99:3a:4d:30:af:08:00 SRC=185.143.223.154 DST=144.91.112.181 LEN=40 TOS=0x00 PREC=0x00 TTL=252 ID=5632 PROTO=TCP SPT=41724 DPT=37000 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-12-09 02:25:25
49.235.137.201 attackbots
Dec  8 08:24:28 kapalua sshd\[2137\]: Invalid user yoyo from 49.235.137.201
Dec  8 08:24:28 kapalua sshd\[2137\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.137.201
Dec  8 08:24:30 kapalua sshd\[2137\]: Failed password for invalid user yoyo from 49.235.137.201 port 36782 ssh2
Dec  8 08:29:42 kapalua sshd\[2643\]: Invalid user guest from 49.235.137.201
Dec  8 08:29:42 kapalua sshd\[2643\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.137.201
2019-12-09 02:45:43
181.174.125.86 attack
Dec  8 17:58:33 MK-Soft-VM7 sshd[11222]: Failed password for root from 181.174.125.86 port 34442 ssh2
Dec  8 18:04:45 MK-Soft-VM7 sshd[11326]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.174.125.86 
...
2019-12-09 02:22:39
218.92.0.148 attackbotsspam
Dec  8 08:25:20 web1 sshd\[32599\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.148  user=root
Dec  8 08:25:23 web1 sshd\[32599\]: Failed password for root from 218.92.0.148 port 42997 ssh2
Dec  8 08:25:26 web1 sshd\[32599\]: Failed password for root from 218.92.0.148 port 42997 ssh2
Dec  8 08:25:29 web1 sshd\[32599\]: Failed password for root from 218.92.0.148 port 42997 ssh2
Dec  8 08:25:33 web1 sshd\[32599\]: Failed password for root from 218.92.0.148 port 42997 ssh2
2019-12-09 02:28:53
103.80.249.130 attackbots
Fail2Ban Ban Triggered
2019-12-09 02:18:09
75.98.144.15 attackspambots
Dec  8 15:01:51 ws12vmsma01 sshd[4850]: Invalid user peralez from 75.98.144.15
Dec  8 15:01:53 ws12vmsma01 sshd[4850]: Failed password for invalid user peralez from 75.98.144.15 port 56756 ssh2
Dec  8 15:08:20 ws12vmsma01 sshd[5720]: Invalid user vmchange from 75.98.144.15
...
2019-12-09 02:46:16

Recently Reported IPs

104.21.15.93 104.21.16.103 104.21.16.107 104.21.67.42
104.21.16.113 104.21.16.112 104.21.16.11 104.21.16.115
104.21.16.123 104.21.16.125 104.21.16.129 104.21.16.124
104.21.16.131 104.21.16.122 104.21.16.133 104.21.67.45
104.21.16.134 104.21.16.137 104.21.16.141 104.21.16.147