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: None

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 <<>> 104.21.42.125
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9250
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.42.125.			IN	A

;; AUTHORITY SECTION:
.			237	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 13 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:10:00 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 125.42.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 125.42.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
88.202.190.151 attackspam
02/09/2020-05:48:06.176907 88.202.190.151 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-02-09 20:59:21
217.170.205.107 attackspambots
Unauthorized access detected from black listed ip!
2020-02-09 20:46:11
206.201.0.41 attackbotsspam
Feb  9 05:48:12 [munged] sshd[24343]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.201.0.41
2020-02-09 20:49:55
51.15.43.15 attackbotsspam
Automatic report - SSH Brute-Force Attack
2020-02-09 20:30:24
111.243.156.21 attackspambots
Unauthorized connection attempt detected from IP address 111.243.156.21 to port 23
2020-02-09 20:56:26
185.209.0.91 attackspam
Feb  9 12:11:05 h2177944 kernel: \[4444698.608486\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.209.0.91 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=24585 PROTO=TCP SPT=42093 DPT=5002 WINDOW=1024 RES=0x00 SYN URGP=0 
Feb  9 12:11:05 h2177944 kernel: \[4444698.608499\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.209.0.91 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=24585 PROTO=TCP SPT=42093 DPT=5002 WINDOW=1024 RES=0x00 SYN URGP=0 
Feb  9 12:37:04 h2177944 kernel: \[4446257.827533\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.209.0.91 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=26152 PROTO=TCP SPT=42093 DPT=5906 WINDOW=1024 RES=0x00 SYN URGP=0 
Feb  9 12:37:04 h2177944 kernel: \[4446257.827548\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.209.0.91 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=26152 PROTO=TCP SPT=42093 DPT=5906 WINDOW=1024 RES=0x00 SYN URGP=0 
Feb  9 13:07:00 h2177944 kernel: \[4448053.125436\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.209.0.91 DST=85.214.117.9 LEN=
2020-02-09 20:42:55
159.89.139.228 attackbotsspam
Feb  9 05:48:06 ks10 sshd[3263826]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.139.228 
Feb  9 05:48:08 ks10 sshd[3263826]: Failed password for invalid user bff from 159.89.139.228 port 52078 ssh2
...
2020-02-09 20:46:31
137.74.119.120 attackspam
$f2bV_matches
2020-02-09 20:14:50
115.94.204.156 attackspambots
Feb  4 10:54:47 itv-usvr-01 sshd[7310]: Invalid user steam from 115.94.204.156
Feb  4 10:54:47 itv-usvr-01 sshd[7310]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.94.204.156
Feb  4 10:54:47 itv-usvr-01 sshd[7310]: Invalid user steam from 115.94.204.156
Feb  4 10:54:49 itv-usvr-01 sshd[7310]: Failed password for invalid user steam from 115.94.204.156 port 58568 ssh2
Feb  4 10:57:56 itv-usvr-01 sshd[7398]: Invalid user musikbot from 115.94.204.156
2020-02-09 21:00:21
41.251.218.60 attackspambots
Feb  9 17:26:11 areeb-Workstation sshd[15337]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.251.218.60 
Feb  9 17:26:14 areeb-Workstation sshd[15337]: Failed password for invalid user server from 41.251.218.60 port 64819 ssh2
...
2020-02-09 20:16:24
221.13.203.109 attackspambots
Feb  9 05:46:39 markkoudstaal sshd[3368]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.13.203.109
Feb  9 05:46:40 markkoudstaal sshd[3368]: Failed password for invalid user tde from 221.13.203.109 port 2385 ssh2
Feb  9 05:48:41 markkoudstaal sshd[3785]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.13.203.109
2020-02-09 20:30:54
61.28.108.122 attackspambots
Feb  9 01:23:53 web1 sshd\[18859\]: Invalid user wbz from 61.28.108.122
Feb  9 01:23:53 web1 sshd\[18859\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.28.108.122
Feb  9 01:23:55 web1 sshd\[18859\]: Failed password for invalid user wbz from 61.28.108.122 port 2213 ssh2
Feb  9 01:26:35 web1 sshd\[19125\]: Invalid user yaj from 61.28.108.122
Feb  9 01:26:35 web1 sshd\[19125\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.28.108.122
2020-02-09 20:38:37
3.12.152.98 attackbotsspam
serveres are UTC 
Lines containing failures of 3.12.152.98
Feb  9 06:31:30 tux2 sshd[28089]: Invalid user support from 3.12.152.98 port 64191
Feb  9 06:31:30 tux2 sshd[28089]: Failed password for invalid user support from 3.12.152.98 port 64191 ssh2
Feb  9 06:31:30 tux2 sshd[28089]: Connection closed by invalid user support 3.12.152.98 port 64191 [preauth]



........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=3.12.152.98
2020-02-09 20:47:16
175.126.73.16 attackbotsspam
(sshd) Failed SSH login from 175.126.73.16 (KR/South Korea/-): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Feb  9 13:03:44 ubnt-55d23 sshd[18249]: Invalid user hcn from 175.126.73.16 port 50594
Feb  9 13:03:46 ubnt-55d23 sshd[18249]: Failed password for invalid user hcn from 175.126.73.16 port 50594 ssh2
2020-02-09 20:33:26
114.40.169.22 attack
Telnet/23 MH Probe, BF, Hack -
2020-02-09 20:26:28

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