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: San Antonio

Region: Texas

Country: United States

Internet Service Provider: Microsoft Corporation

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attack
Time:     Wed Apr  1 06:13:59 2020 -0300
IP:       104.215.121.212 (US/United States/-)
Failures: 30 (smtpauth)
Interval: 3600 seconds
Blocked:  Permanent Block
2020-04-02 02:32:14
attackspambots
Oct 23 08:28:39 localhost postfix/smtpd[13197]: lost connection after EHLO from unknown[104.215.121.212]
Oct 23 08:28:41 localhost postfix/smtpd[13197]: lost connection after EHLO from unknown[104.215.121.212]
Oct 23 08:28:41 localhost postfix/smtpd[13197]: lost connection after EHLO from unknown[104.215.121.212]
Oct 23 08:28:42 localhost postfix/smtpd[13197]: lost connection after EHLO from unknown[104.215.121.212]
Oct 23 08:28:44 localhost postfix/smtpd[13197]: lost connection after EHLO from unknown[104.215.121.212]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=104.215.121.212
2019-10-24 02:22:22
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.215.121.212
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21109
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;104.215.121.212.		IN	A

;; AUTHORITY SECTION:
.			479	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019102301 1800 900 604800 86400

;; Query time: 107 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Oct 24 02:22:19 CST 2019
;; MSG SIZE  rcvd: 119
Host info
Host 212.121.215.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 212.121.215.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
181.177.251.3 attack
PE__<177>1579640599 [1:2010935:3] ET SCAN Suspicious inbound to MSSQL port 1433 [Classification: Potentially Bad Traffic] [Priority: 2] {TCP} 181.177.251.3:53697
2020-01-22 05:19:04
216.155.94.51 attackbotsspam
Unauthorized connection attempt detected from IP address 216.155.94.51 to port 2220 [J]
2020-01-22 04:59:23
178.128.21.32 attackbots
SSH brutforce
2020-01-22 05:24:34
125.213.150.7 attack
Jan 21 08:14:41 server sshd\[17538\]: Invalid user master from 125.213.150.7
Jan 21 08:14:41 server sshd\[17538\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.213.150.7 
Jan 21 08:14:43 server sshd\[17538\]: Failed password for invalid user master from 125.213.150.7 port 34520 ssh2
Jan 22 00:03:10 server sshd\[20846\]: Invalid user user from 125.213.150.7
Jan 22 00:03:10 server sshd\[20846\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.213.150.7 
...
2020-01-22 05:28:15
116.203.156.230 attack
Jan 21 21:01:47 hcbbdb sshd\[6065\]: Invalid user test from 116.203.156.230
Jan 21 21:01:47 hcbbdb sshd\[6065\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=static.230.156.203.116.clients.your-server.de
Jan 21 21:01:49 hcbbdb sshd\[6065\]: Failed password for invalid user test from 116.203.156.230 port 44534 ssh2
Jan 21 21:03:42 hcbbdb sshd\[6330\]: Invalid user admin from 116.203.156.230
Jan 21 21:03:42 hcbbdb sshd\[6330\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=static.230.156.203.116.clients.your-server.de
2020-01-22 05:06:38
218.92.0.145 attackspambots
Honeypot hit.
2020-01-22 05:32:10
167.71.102.136 attackbots
Fail2Ban - SSH Bruteforce Attempt
2020-01-22 04:59:47
190.11.32.207 attackspambots
Jan 21 21:01:49 localhost sshd\[111015\]: Invalid user unity from 190.11.32.207 port 41664
Jan 21 21:01:49 localhost sshd\[111015\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.11.32.207
Jan 21 21:01:50 localhost sshd\[111015\]: Failed password for invalid user unity from 190.11.32.207 port 41664 ssh2
Jan 21 21:03:41 localhost sshd\[111048\]: Invalid user apache from 190.11.32.207 port 50934
Jan 21 21:03:41 localhost sshd\[111048\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.11.32.207
...
2020-01-22 05:07:11
159.65.151.216 attackspambots
Unauthorized connection attempt detected from IP address 159.65.151.216 to port 2220 [J]
2020-01-22 05:00:07
115.28.185.247 attackbotsspam
Jan 21 22:03:00 vpn01 sshd[28086]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.28.185.247
Jan 21 22:03:02 vpn01 sshd[28086]: Failed password for invalid user bdos from 115.28.185.247 port 58116 ssh2
...
2020-01-22 05:33:04
122.117.99.77 attack
Honeypot attack, port: 81, PTR: 122-117-99-77.HINET-IP.hinet.net.
2020-01-22 05:03:30
168.197.31.12 attackspambots
Jan 21 10:49:25 eddieflores sshd\[13290\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.197.31.12  user=root
Jan 21 10:49:27 eddieflores sshd\[13290\]: Failed password for root from 168.197.31.12 port 37200 ssh2
Jan 21 10:53:36 eddieflores sshd\[13911\]: Invalid user charles from 168.197.31.12
Jan 21 10:53:36 eddieflores sshd\[13911\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.197.31.12
Jan 21 10:53:38 eddieflores sshd\[13911\]: Failed password for invalid user charles from 168.197.31.12 port 52822 ssh2
2020-01-22 04:57:15
73.144.185.135 attackbots
Jan 21 21:41:30 extapp sshd[14821]: Invalid user norberto from 73.144.185.135
Jan 21 21:41:33 extapp sshd[14821]: Failed password for invalid user norberto from 73.144.185.135 port 42872 ssh2
Jan 21 21:43:55 extapp sshd[16073]: Invalid user miao from 73.144.185.135


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=73.144.185.135
2020-01-22 05:15:54
222.186.30.167 attackbots
Jan 21 22:07:53 debian64 sshd\[16018\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.167  user=root
Jan 21 22:07:55 debian64 sshd\[16018\]: Failed password for root from 222.186.30.167 port 23810 ssh2
Jan 21 22:07:58 debian64 sshd\[16018\]: Failed password for root from 222.186.30.167 port 23810 ssh2
...
2020-01-22 05:08:37
222.186.175.23 attackbotsspam
Unauthorized connection attempt detected from IP address 222.186.175.23 to port 22 [J]
2020-01-22 05:06:21

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