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: Singapore

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 <<>> 138.75.202.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 260
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;138.75.202.21.			IN	A

;; AUTHORITY SECTION:
.			29	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021400 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 14 18:31:49 CST 2025
;; MSG SIZE  rcvd: 106
Host info
21.202.75.138.in-addr.arpa domain name pointer 21.202.75.138.unknown.m1.com.sg.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
21.202.75.138.in-addr.arpa	name = 21.202.75.138.unknown.m1.com.sg.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
80.210.134.83 attack
proto=tcp  .  spt=54504  .  dpt=25  .     (Listed on    zen-spamhaus plus rbldns-ru)     (494)
2019-10-05 02:11:55
82.223.22.42 attackbotsspam
WordPress login Brute force / Web App Attack on client site.
2019-10-05 02:04:25
109.251.252.123 attack
proto=tcp  .  spt=46502  .  dpt=25  .     (Listed on    truncate-gbudb also unsubscore and rbldns-ru)     (500)
2019-10-05 01:50:43
100.15.155.132 attackbotsspam
Oct  4 16:19:09 ovpn sshd\[29528\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=100.15.155.132  user=root
Oct  4 16:19:11 ovpn sshd\[29528\]: Failed password for root from 100.15.155.132 port 43811 ssh2
Oct  4 16:29:05 ovpn sshd\[8164\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=100.15.155.132  user=root
Oct  4 16:29:06 ovpn sshd\[8164\]: Failed password for root from 100.15.155.132 port 35398 ssh2
Oct  4 16:34:17 ovpn sshd\[10510\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=100.15.155.132  user=root
2019-10-05 01:57:45
51.105.96.190 attackspambots
Oct  4 08:23:27 localhost kernel: [3929626.659342] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=51.105.96.190 DST=[mungedIP2] LEN=68 TOS=0x00 PREC=0x00 TTL=244 ID=14132 PROTO=UDP SPT=30008 DPT=111 LEN=48 
Oct  4 08:23:27 localhost kernel: [3929626.659370] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=51.105.96.190 DST=[mungedIP2] LEN=68 TOS=0x00 PREC=0x00 TTL=244 ID=14132 PROTO=UDP SPT=30008 DPT=111 LEN=48 
Oct  4 08:23:31 localhost kernel: [3929630.711703] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=51.105.96.190 DST=[mungedIP2] LEN=68 TOS=0x00 PREC=0x00 TTL=244 ID=5882 PROTO=UDP SPT=30008 DPT=111 LEN=48 
Oct  4 08:23:31 localhost kernel: [3929630.711728] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=51.105.96.190 DST=[mungedIP2] LEN=68 TOS=0x00 PREC=0x00 TTL=244 ID=5882 PROTO=UDP SPT=30008 DPT=111 LEN=48 
Oct  4 08:23:31 localhost kernel: [3929630
2019-10-05 01:42:09
45.82.153.35 attackbotsspam
10/04/2019-11:35:04.105333 45.82.153.35 Protocol: 6 ET SCAN NMAP -sS window 1024
2019-10-05 01:34:05
222.186.175.212 attack
Oct  4 13:25:13 debian sshd\[3643\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.212  user=root
Oct  4 13:25:15 debian sshd\[3643\]: Failed password for root from 222.186.175.212 port 1308 ssh2
Oct  4 13:25:20 debian sshd\[3643\]: Failed password for root from 222.186.175.212 port 1308 ssh2
...
2019-10-05 01:37:04
185.53.88.35 attackspam
\[2019-10-04 13:41:01\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-04T13:41:01.192-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011442922550332",SessionID="0x7f1e1c3c9948",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/53380",ACLName="no_extension_match"
\[2019-10-04 13:42:12\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-04T13:42:12.599-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9442922550332",SessionID="0x7f1e1c3735b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/52920",ACLName="no_extension_match"
\[2019-10-04 13:43:14\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-04T13:43:14.108-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442922550332",SessionID="0x7f1e1c94d1b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/62178",ACLName="no_extensi
2019-10-05 01:47:32
212.92.115.187 attack
RDP brute forcing (d)
2019-10-05 02:02:00
212.92.118.114 attackbots
RDP brute forcing (r)
2019-10-05 01:38:37
34.208.139.143 attackbots
[LAN access from remote] from 34.208.139.143:27705 to 192.168.XX.XX:5000, Thursday, Oct 03,2019 05:32:22
[LAN access from remote] from 34.208.139.143:1598 to 192.168.XX.XX:5001, Thursday, Oct 03,2019 05:32:13
2019-10-05 01:32:44
123.200.9.53 attack
proto=tcp  .  spt=47670  .  dpt=25  .     (Found on   Dark List de Oct 04)     (498)
2019-10-05 02:01:39
89.248.172.85 attack
firewall-block, port(s): 2681/tcp, 2685/tcp
2019-10-05 01:51:02
181.229.124.194 attack
Oct  4 14:17:22 icinga sshd[26162]: Failed password for root from 181.229.124.194 port 42060 ssh2
...
2019-10-05 02:10:33
202.138.242.22 attackspam
proto=tcp  .  spt=55919  .  dpt=25  .     (Found on   Blocklist de  Oct 03)     (497)
2019-10-05 02:03:34

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