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: Tencent Cloud Computing (Beijing) Co. Ltd.

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attackspam
Aug 18 04:24:02 hiderm sshd\[14365\]: Invalid user user from 49.234.66.154
Aug 18 04:24:02 hiderm sshd\[14365\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.66.154
Aug 18 04:24:04 hiderm sshd\[14365\]: Failed password for invalid user user from 49.234.66.154 port 51552 ssh2
Aug 18 04:27:49 hiderm sshd\[14661\]: Invalid user image from 49.234.66.154
Aug 18 04:27:49 hiderm sshd\[14661\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.66.154
2019-08-18 22:29:55
attackbots
$f2bV_matches
2019-08-09 00:14:04
attackspam
Jul 31 14:52:35 vayu sshd[313253]: Invalid user hadoop from 49.234.66.154
Jul 31 14:52:36 vayu sshd[313253]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.66.154 
Jul 31 14:52:38 vayu sshd[313253]: Failed password for invalid user hadoop from 49.234.66.154 port 45630 ssh2
Jul 31 14:52:38 vayu sshd[313253]: Received disconnect from 49.234.66.154: 11: Bye Bye [preauth]
Jul 31 14:57:10 vayu sshd[316140]: Invalid user demo from 49.234.66.154
Jul 31 14:57:10 vayu sshd[316140]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.66.154 


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=49.234.66.154
2019-08-02 18:18:40
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 49.234.66.154
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36768
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019080200 1800 900 604800 86400

;; Query time: 5 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Fri Aug 02 18:18:32 CST 2019
;; MSG SIZE  rcvd: 117
Host info
Host 154.66.234.49.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

** server can't find 154.66.234.49.in-addr.arpa: NXDOMAIN
Related IP info:
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