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 of America (the)

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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 157.21.99.123
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 18388
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;157.21.99.123.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025022800 1800 900 604800 86400

;; Query time: 12 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 28 20:38:39 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 123.99.21.157.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 123.99.21.157.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
42.3.51.73 attack
Tried sshing with brute force.
2020-04-18 02:37:31
222.186.175.182 attackbotsspam
prod3
...
2020-04-18 03:11:12
46.148.20.25 attackspambots
firewall-block, port(s): 8822/tcp
2020-04-18 02:41:35
115.86.78.180 attack
Telnet/23 MH Probe, Scan, BF, Hack -
2020-04-18 03:13:20
52.215.96.218 attackspambots
From: Buy Gold 2Day  - phishing redirect trckr.myhittrack.com
2020-04-18 02:56:21
157.52.145.82 attackspambots
Email rejected due to spam filtering
2020-04-18 02:49:07
78.194.1.42 attackbotsspam
Telnet/23 MH Probe, Scan, BF, Hack -
2020-04-18 03:03:47
58.218.209.50 attack
Bruteforce detected by fail2ban
2020-04-18 03:01:55
87.241.138.66 attack
Telnet/23 MH Probe, Scan, BF, Hack -
2020-04-18 02:36:50
209.97.161.46 attackspambots
Apr 17 20:28:00 mail sshd[28262]: Invalid user hadoop from 209.97.161.46
...
2020-04-18 03:05:49
94.68.66.39 attackspam
Telnet/23 MH Probe, Scan, BF, Hack -
2020-04-18 02:41:59
152.136.152.45 attackbots
Apr 17 19:00:30 ns3164893 sshd[13684]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.136.152.45  user=root
Apr 17 19:00:33 ns3164893 sshd[13684]: Failed password for root from 152.136.152.45 port 43548 ssh2
...
2020-04-18 03:08:55
157.52.145.18 attack
Email rejected due to spam filtering
2020-04-18 02:38:14
119.57.170.155 attackbotsspam
(sshd) Failed SSH login from 119.57.170.155 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr 17 13:58:15 localhost sshd[1099]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.57.170.155  user=root
Apr 17 13:58:17 localhost sshd[1099]: Failed password for root from 119.57.170.155 port 35463 ssh2
Apr 17 14:11:28 localhost sshd[2071]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.57.170.155  user=root
Apr 17 14:11:30 localhost sshd[2071]: Failed password for root from 119.57.170.155 port 39928 ssh2
Apr 17 14:13:33 localhost sshd[2234]: Invalid user dy from 119.57.170.155 port 53166
2020-04-18 02:42:47
152.250.245.182 attack
2020-04-17T14:07:13.2470181495-001 sshd[51413]: Invalid user tester from 152.250.245.182 port 51654
2020-04-17T14:07:15.2765381495-001 sshd[51413]: Failed password for invalid user tester from 152.250.245.182 port 51654 ssh2
2020-04-17T14:12:53.3339941495-001 sshd[51546]: Invalid user ubuntu from 152.250.245.182 port 39698
2020-04-17T14:12:53.3407601495-001 sshd[51546]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.250.245.182
2020-04-17T14:12:53.3339941495-001 sshd[51546]: Invalid user ubuntu from 152.250.245.182 port 39698
2020-04-17T14:12:56.0401601495-001 sshd[51546]: Failed password for invalid user ubuntu from 152.250.245.182 port 39698 ssh2
...
2020-04-18 03:15:17

Recently Reported IPs

30.181.155.145 177.163.213.140 145.168.172.145 137.121.84.252
172.251.71.251 93.27.243.80 9.246.107.88 207.196.44.128
231.41.245.5 74.229.160.14 253.108.70.217 145.222.87.30
211.67.184.108 117.5.192.68 70.74.242.12 119.253.76.56
156.171.192.17 34.135.233.166 73.233.195.16 82.175.227.59