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: 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 <<>> 121.231.149.55
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26848
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.231.149.55.			IN	A

;; AUTHORITY SECTION:
.			449	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022030800 1800 900 604800 86400

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Mar 08 20:30:32 CST 2022
;; MSG SIZE  rcvd: 107
Host info
Host 55.149.231.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 55.149.231.121.in-addr.arpa: NXDOMAIN
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Related comments:
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May  3 22:35:23 santamaria sshd\[23521\]: Invalid user ubuntu from 49.235.221.172
May  3 22:35:23 santamaria sshd\[23521\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.221.172
May  3 22:35:25 santamaria sshd\[23521\]: Failed password for invalid user ubuntu from 49.235.221.172 port 60528 ssh2
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May  4 02:49:34 debian-2gb-nbg1-2 kernel: \[10812276.170733\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=195.144.21.56 DST=195.201.40.59 LEN=32 TOS=0x08 PREC=0x00 TTL=116 ID=38891 PROTO=UDP SPT=27221 DPT=7 LEN=12
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12052/tcp 891/tcp 2587/tcp...
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2020-05-04 08:33:35
151.84.206.249 attack
May  4 02:40:55 home sshd[30166]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.84.206.249
May  4 02:40:57 home sshd[30166]: Failed password for invalid user jon from 151.84.206.249 port 39648 ssh2
May  4 02:45:00 home sshd[30944]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.84.206.249
...
2020-05-04 08:52:01
5.3.87.8 attackspam
SSH Bruteforce attack
2020-05-04 08:32:50

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