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: United States

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 <<>> 204.121.21.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47561
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			244	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020090101 1800 900 604800 86400

;; Query time: 70 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Sep 02 05:33:26 CST 2020
;; MSG SIZE  rcvd: 117
Host info
Host 57.21.121.204.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 57.21.121.204.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
146.88.240.4 attack
GPL RPC portmap listing UDP 111 - port: 111 proto: UDP cat: Decode of an RPC Query
2020-05-10 17:28:04
60.174.248.244 attack
2020-05-10T05:13:53.747413shield sshd\[23321\]: Invalid user control from 60.174.248.244 port 34466
2020-05-10T05:13:53.751122shield sshd\[23321\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.174.248.244
2020-05-10T05:13:56.145843shield sshd\[23321\]: Failed password for invalid user control from 60.174.248.244 port 34466 ssh2
2020-05-10T05:18:57.744482shield sshd\[25164\]: Invalid user sinusbot from 60.174.248.244 port 54842
2020-05-10T05:18:57.750085shield sshd\[25164\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.174.248.244
2020-05-10 17:08:07
51.89.149.213 attack
2020-05-10T11:23:08.058023  sshd[4950]: Invalid user admin from 51.89.149.213 port 57638
2020-05-10T11:23:08.071875  sshd[4950]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.89.149.213
2020-05-10T11:23:08.058023  sshd[4950]: Invalid user admin from 51.89.149.213 port 57638
2020-05-10T11:23:09.527631  sshd[4950]: Failed password for invalid user admin from 51.89.149.213 port 57638 ssh2
...
2020-05-10 17:23:52
188.158.205.69 attackbots
Fail2Ban Ban Triggered
2020-05-10 17:07:40
185.176.27.34 attack
05/10/2020-05:30:17.290196 185.176.27.34 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-05-10 17:36:34
27.79.233.30 attackspam
SMB Server BruteForce Attack
2020-05-10 17:09:32
114.242.139.19 attack
Bruteforce detected by fail2ban
2020-05-10 17:48:15
157.245.207.198 attackbots
May 10 05:39:09 NPSTNNYC01T sshd[22404]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.245.207.198
May 10 05:39:11 NPSTNNYC01T sshd[22404]: Failed password for invalid user postgres from 157.245.207.198 port 35706 ssh2
May 10 05:43:19 NPSTNNYC01T sshd[22780]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.245.207.198
...
2020-05-10 17:44:43
176.97.49.97 attack
(smtpauth) Failed SMTP AUTH login from 176.97.49.97 (PL/Poland/176-97-49-97.bartnet.pl): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-05-10 08:20:02 plain authenticator failed for ([176.97.49.97]) [176.97.49.97]: 535 Incorrect authentication data (set_id=salimi)
2020-05-10 17:14:16
41.170.14.93 attackbotsspam
May  9 10:14:07 risk sshd[7238]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.170.14.93  user=r.r
May  9 10:14:09 risk sshd[7238]: Failed password for r.r from 41.170.14.93 port 51896 ssh2
May  9 10:19:22 risk sshd[7441]: Invalid user qsc from 41.170.14.93
May  9 10:19:22 risk sshd[7441]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.170.14.93 
May  9 10:19:24 risk sshd[7441]: Failed password for invalid user qsc from 41.170.14.93 port 52120 ssh2
May  9 10:22:15 risk sshd[7504]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.170.14.93  user=r.r
May  9 10:22:17 risk sshd[7504]: Failed password for r.r from 41.170.14.93 port 53036 ssh2
May  9 10:25:04 risk sshd[7585]: Invalid user chick from 41.170.14.93
May  9 10:25:04 risk sshd[7585]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.170.14.93 
Ma........
-------------------------------
2020-05-10 17:37:54
36.26.95.179 attackbots
sshd
2020-05-10 17:11:46
139.198.17.144 attackbots
odoo8
...
2020-05-10 17:43:48
200.54.51.124 attackbots
$f2bV_matches
2020-05-10 17:18:52
162.243.141.108 attackbots
firewall-block, port(s): 4567/tcp
2020-05-10 17:14:42
104.50.180.85 attack
May 10 07:07:07 sip sshd[19095]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.50.180.85
May 10 07:07:09 sip sshd[19095]: Failed password for invalid user oracle from 104.50.180.85 port 46712 ssh2
May 10 07:29:06 sip sshd[27298]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.50.180.85
2020-05-10 17:10:06

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