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: China

Internet Service Provider: ChinaNet Yunnan Province Network

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attackbotsspam
Lines containing failures of 116.55.34.21
Jul 11 06:50:01 server-name sshd[11164]: Invalid user admin from 116.55.34.21 port 52544
Jul 11 06:50:01 server-name sshd[11164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.55.34.21 
Jul 11 06:50:04 server-name sshd[11164]: Failed password for invalid user admin from 116.55.34.21 port 52544 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=116.55.34.21
2019-07-12 05:49:51
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 116.55.34.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4222
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019071101 1800 900 604800 86400

;; Query time: 2 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Fri Jul 12 05:49:44 CST 2019
;; MSG SIZE  rcvd: 116
Host info
21.34.55.116.in-addr.arpa domain name pointer 21.34.55.116.broad.km.yn.dynamic.163data.com.cn.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
21.34.55.116.in-addr.arpa	name = 21.34.55.116.broad.km.yn.dynamic.163data.com.cn.

Authoritative answers can be found from:

Related IP info:
Related comments:
IP Type Details Datetime
176.122.177.84 attack
2019-08-27T12:08:51.615900abusebot-6.cloudsearch.cf sshd\[27001\]: Invalid user spamfilter from 176.122.177.84 port 38118
2019-08-28 01:40:52
200.21.57.62 attack
Aug 27 02:29:26 web9 sshd\[8982\]: Invalid user vmi from 200.21.57.62
Aug 27 02:29:26 web9 sshd\[8982\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.21.57.62
Aug 27 02:29:28 web9 sshd\[8982\]: Failed password for invalid user vmi from 200.21.57.62 port 43690 ssh2
Aug 27 02:34:27 web9 sshd\[10587\]: Invalid user shit from 200.21.57.62
Aug 27 02:34:27 web9 sshd\[10587\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.21.57.62
2019-08-28 01:46:39
103.251.52.206 attack
Unauthorized connection attempt from IP address 103.251.52.206 on Port 445(SMB)
2019-08-28 01:44:13
95.167.225.81 attackspambots
Aug 27 12:10:57 mail sshd\[11629\]: Invalid user saeed from 95.167.225.81 port 49144
Aug 27 12:10:57 mail sshd\[11629\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.167.225.81
...
2019-08-28 01:55:52
165.227.92.185 attack
Aug 27 03:58:58 aiointranet sshd\[22237\]: Invalid user resin from 165.227.92.185
Aug 27 03:58:58 aiointranet sshd\[22237\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.92.185
Aug 27 03:59:00 aiointranet sshd\[22237\]: Failed password for invalid user resin from 165.227.92.185 port 48764 ssh2
Aug 27 04:03:05 aiointranet sshd\[22608\]: Invalid user sue from 165.227.92.185
Aug 27 04:03:05 aiointranet sshd\[22608\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.92.185
2019-08-28 01:39:09
93.46.117.2 attackspam
ssh failed login
2019-08-28 02:12:17
118.173.46.208 attack
Unauthorized connection attempt from IP address 118.173.46.208 on Port 445(SMB)
2019-08-28 01:34:07
177.154.234.186 attackbotsspam
Brute force attempt
2019-08-28 02:11:23
159.89.53.222 attackbots
2019-08-27T21:00:27.276142enmeeting.mahidol.ac.th sshd\[23145\]: User root from 159.89.53.222 not allowed because not listed in AllowUsers
2019-08-27T21:00:27.402718enmeeting.mahidol.ac.th sshd\[23145\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.53.222  user=root
2019-08-27T21:00:28.797972enmeeting.mahidol.ac.th sshd\[23145\]: Failed password for invalid user root from 159.89.53.222 port 50434 ssh2
...
2019-08-28 01:55:37
80.82.77.18 attack
Aug 27 19:56:27 webserver postfix/smtpd\[831\]: warning: unknown\[80.82.77.18\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 27 19:57:06 webserver postfix/smtpd\[831\]: warning: unknown\[80.82.77.18\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 27 19:57:42 webserver postfix/smtpd\[831\]: warning: unknown\[80.82.77.18\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 27 19:58:21 webserver postfix/smtpd\[831\]: warning: unknown\[80.82.77.18\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 27 19:58:58 webserver postfix/smtpd\[831\]: warning: unknown\[80.82.77.18\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-08-28 02:06:36
27.72.253.59 attackspam
Unauthorised access (Aug 27) SRC=27.72.253.59 LEN=52 TTL=108 ID=25110 DF TCP DPT=445 WINDOW=8192 SYN
2019-08-28 01:35:43
37.151.28.64 attackspam
Unauthorized connection attempt from IP address 37.151.28.64 on Port 445(SMB)
2019-08-28 01:52:01
122.172.151.91 attack
Aug 27 12:51:55 legacy sshd[23868]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.172.151.91
Aug 27 12:51:57 legacy sshd[23868]: Failed password for invalid user silvi from 122.172.151.91 port 33976 ssh2
Aug 27 12:57:38 legacy sshd[23961]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.172.151.91
...
2019-08-28 02:02:08
41.32.223.162 attackspam
Unauthorized connection attempt from IP address 41.32.223.162 on Port 445(SMB)
2019-08-28 02:08:33
197.50.187.128 attackbotsspam
Unauthorized connection attempt from IP address 197.50.187.128 on Port 445(SMB)
2019-08-28 02:01:07

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