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 <<>> 104.21.87.13
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 57870
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.87.13.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:09:06 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 13.87.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 13.87.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
218.250.113.107 attackspam
SSH_scan
2020-08-23 08:30:23
107.182.25.146 attackbots
2020-08-23T07:01:00.774975billing sshd[18361]: Failed password for invalid user mac from 107.182.25.146 port 59450 ssh2
2020-08-23T07:05:30.978947billing sshd[28426]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.25.146.16clouds.com  user=root
2020-08-23T07:05:33.175995billing sshd[28426]: Failed password for root from 107.182.25.146 port 50088 ssh2
...
2020-08-23 08:09:51
123.140.114.196 attackbots
Aug 23 02:19:13 nextcloud sshd\[20153\]: Invalid user almacen from 123.140.114.196
Aug 23 02:19:13 nextcloud sshd\[20153\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.140.114.196
Aug 23 02:19:16 nextcloud sshd\[20153\]: Failed password for invalid user almacen from 123.140.114.196 port 60416 ssh2
2020-08-23 08:21:49
222.244.139.186 attackbots
Aug 22 23:03:24 ns381471 sshd[23540]: Failed password for root from 222.244.139.186 port 10632 ssh2
Aug 22 23:07:35 ns381471 sshd[23845]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.244.139.186
2020-08-23 08:19:44
68.183.203.30 attack
Aug 23 02:18:31 vpn01 sshd[23982]: Failed password for root from 68.183.203.30 port 40632 ssh2
Aug 23 02:22:04 vpn01 sshd[24008]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.203.30
...
2020-08-23 08:22:49
86.104.25.36 attack
SSH_scan
2020-08-23 08:24:47
49.88.112.112 attackbotsspam
2020-08-23T02:31[Censored Hostname] sshd[19996]: Failed password for root from 49.88.112.112 port 50619 ssh2
2020-08-23T02:31[Censored Hostname] sshd[19996]: Failed password for root from 49.88.112.112 port 50619 ssh2
2020-08-23T02:31[Censored Hostname] sshd[19996]: Failed password for root from 49.88.112.112 port 50619 ssh2[...]
2020-08-23 08:32:15
51.159.20.123 attack
 UDP 51.159.20.123:7784 -> port 5060, len 429
2020-08-23 08:31:55
192.99.4.59 attackspam
192.99.4.59 - - [23/Aug/2020:04:50:28 +0100] "POST /wp-login.php HTTP/1.1" 200 5985 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
192.99.4.59 - - [23/Aug/2020:04:52:55 +0100] "POST /wp-login.php HTTP/1.1" 200 5985 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
192.99.4.59 - - [23/Aug/2020:04:55:52 +0100] "POST /wp-login.php HTTP/1.1" 200 5985 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
...
2020-08-23 12:04:05
106.12.202.119 attackspam
Triggered by Fail2Ban at Ares web server
2020-08-23 12:07:09
77.222.113.64 attack
2020-08-23T00:04:01.562388shield sshd\[2614\]: Invalid user ubuntu from 77.222.113.64 port 42062
2020-08-23T00:04:01.641118shield sshd\[2614\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=pool-77-222-113-64.is74.ru
2020-08-23T00:04:03.633545shield sshd\[2614\]: Failed password for invalid user ubuntu from 77.222.113.64 port 42062 ssh2
2020-08-23T00:10:22.402951shield sshd\[5320\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=pool-77-222-113-64.is74.ru  user=root
2020-08-23T00:10:24.018546shield sshd\[5320\]: Failed password for root from 77.222.113.64 port 40252 ssh2
2020-08-23 08:14:45
69.203.100.88 attack
SSH_scan
2020-08-23 08:25:05
68.148.244.65 attackspam
2020-08-23T02:43:25.183557mail.standpoint.com.ua sshd[28723]: Failed password for redis from 68.148.244.65 port 55542 ssh2
2020-08-23T02:43:27.683336mail.standpoint.com.ua sshd[28723]: Failed password for redis from 68.148.244.65 port 55542 ssh2
2020-08-23T02:43:30.130768mail.standpoint.com.ua sshd[28723]: Failed password for redis from 68.148.244.65 port 55542 ssh2
2020-08-23T02:43:31.651312mail.standpoint.com.ua sshd[28723]: Failed password for redis from 68.148.244.65 port 55542 ssh2
2020-08-23T02:43:33.978743mail.standpoint.com.ua sshd[28723]: Failed password for redis from 68.148.244.65 port 55542 ssh2
...
2020-08-23 08:11:00
45.129.33.11 attack
Aug 23 00:44:15 *hidden* kernel: [UFW BLOCK] IN=ens192 OUT= MAC=00:50:56:bc:13:b8:30:e4:db:97:3e:3f:08:00 SRC=45.129.33.11 DST=217.198.117.163 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=49032 PROTO=TCP SPT=45303 DPT=36478 WINDOW=1024 RES=0x00 SYN URGP=0 Aug 23 01:37:28 *hidden* kernel: [UFW BLOCK] IN=ens192 OUT= MAC=00:50:56:bc:13:b8:30:e4:db:97:3e:3f:08:00 SRC=45.129.33.11 DST=217.198.117.163 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=15188 PROTO=TCP SPT=45303 DPT=36491 WINDOW=1024 RES=0x00 SYN URGP=0 Aug 23 01:50:38 *hidden* kernel: [UFW BLOCK] IN=ens192 OUT= MAC=00:50:56:bc:13:b8:30:e4:db:97:3e:3f:08:00 SRC=45.129.33.11 DST=217.198.117.163 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=58421 PROTO=TCP SPT=45303 DPT=36436 WINDOW=1024 RES=0x00 SYN URGP=0 Aug 23 01:57:53 *hidden* kernel: [UFW BLOCK] IN=ens192 OUT= MAC=00:50:56:bc:13:b8:30:e4:db:97:3e:3f:08:00 SRC=45.129.33.11 DST=217.198.117.163 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=58664 PROTO=TCP SPT=45303 DPT=36427 WINDOW=1024 RES=0x00 SYN URGP=0 Aug 23 0
...
2020-08-23 08:11:56
186.4.204.69 attack
SSH_scan
2020-08-23 08:32:55

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