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: Germany

Internet Service Provider: Deutsche Telekom AG

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attackbotsspam
Lines containing failures of 91.6.34.11
Dec 31 07:16:07 mx-in-02 sshd[20848]: Invalid user pi from 91.6.34.11 port 37136
Dec 31 07:16:07 mx-in-02 sshd[20847]: Invalid user pi from 91.6.34.11 port 37130
Dec 31 07:16:07 mx-in-02 sshd[20848]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.6.34.11 
Dec 31 07:16:07 mx-in-02 sshd[20847]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.6.34.11 


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=91.6.34.11
2019-12-31 21:55:20
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 91.6.34.11
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52616
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			325	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019123100 1800 900 604800 86400

;; Query time: 973 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Dec 31 21:55:16 CST 2019
;; MSG SIZE  rcvd: 114
Host info
11.34.6.91.in-addr.arpa domain name pointer p5B06220B.dip0.t-ipconnect.de.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
11.34.6.91.in-addr.arpa	name = p5B06220B.dip0.t-ipconnect.de.

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