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: Italy

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 <<>> 81.73.42.73
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26011
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;81.73.42.73.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025022001 1800 900 604800 86400

;; Query time: 13 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 21 06:35:04 CST 2025
;; MSG SIZE  rcvd: 104
Host info
73.42.73.81.in-addr.arpa domain name pointer host-81-73-42-73.business.telecomitalia.it.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
73.42.73.81.in-addr.arpa	name = host-81-73-42-73.business.telecomitalia.it.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
114.67.106.137 attack
2020-08-28T07:49:22.241682dmca.cloudsearch.cf sshd[23074]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.67.106.137  user=root
2020-08-28T07:49:24.349882dmca.cloudsearch.cf sshd[23074]: Failed password for root from 114.67.106.137 port 36384 ssh2
2020-08-28T07:53:37.946797dmca.cloudsearch.cf sshd[23135]: Invalid user cms from 114.67.106.137 port 54250
2020-08-28T07:53:37.952937dmca.cloudsearch.cf sshd[23135]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.67.106.137
2020-08-28T07:53:37.946797dmca.cloudsearch.cf sshd[23135]: Invalid user cms from 114.67.106.137 port 54250
2020-08-28T07:53:40.070662dmca.cloudsearch.cf sshd[23135]: Failed password for invalid user cms from 114.67.106.137 port 54250 ssh2
2020-08-28T07:57:39.739094dmca.cloudsearch.cf sshd[23171]: Invalid user g from 114.67.106.137 port 43878
...
2020-08-28 17:05:55
125.64.94.133 attack
[N10.H2.VM2] Port Scanner Detected Blocked by UFW
2020-08-28 17:28:32
111.229.78.121 attack
Invalid user kruger from 111.229.78.121 port 48214
2020-08-28 17:07:15
172.105.249.120 attackbotsspam
scan
2020-08-28 17:37:49
146.88.240.4 attackbotsspam
 UDP 146.88.240.4:46389 -> port 51413, len 58
2020-08-28 17:11:20
188.166.144.207 attackbotsspam
SSH bruteforce
2020-08-28 17:32:02
172.105.250.203 attackbotsspam
scan
2020-08-28 17:12:06
89.248.160.150 attackspambots
89.248.160.150 was recorded 7 times by 4 hosts attempting to connect to the following ports: 41095,41093. Incident counter (4h, 24h, all-time): 7, 34, 16283
2020-08-28 17:32:41
45.142.120.157 attackspam
2020-08-28 11:11:46 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=comercial@no-server.de\)
2020-08-28 11:12:06 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=tech1@no-server.de\)
2020-08-28 11:12:19 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=tech1@no-server.de\)
2020-08-28 11:12:25 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=tech1@no-server.de\)
2020-08-28 11:12:42 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=mail16@no-server.de\)
2020-08-28 11:12:56 dovecot_login authenticator failed for \(User\) \[45.142.120.157\]: 535 Incorrect authentication data \(set_id=mail16@no-server.de\)
2020-08-28 11:13:02 dovecot_login authenticator failed for \(User\) \[45.142.120.1
...
2020-08-28 17:18:17
206.253.224.75 attackbots
srvr2: (mod_security) mod_security (id:920350) triggered by 206.253.224.75 (DE/-/-): 1 in the last 600 secs; Ports: *; Direction: inout; Trigger: LF_MODSEC; Logs: 2020/08/28 11:08:29 [error] 377966#0: *172733 [client 206.253.224.75] ModSecurity: Access denied with code 406 (phase 2). Matched "Operator `Rx' with parameter `^[\d.:]+$' against variable `REQUEST_HEADERS:Host'  [redacted] [file "/etc/modsecurity.d/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "718"] [id "920350"] [rev ""] [msg "Host header is a numeric IP address"] [redacted] [severity "4"] [ver "OWASP_CRS/3.3.0"] [maturity "0"] [accuracy "0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "paranoia-level/1"] [tag "OWASP_CRS"] [tag "capec/1000/210/272"] [tag "PCI/6.5.10"] [redacted] [uri "/robots.txt"] [unique_id "159860570966.376346"] [ref "o0,14v160,14"], client: 206.253.224.75, [redacted] request: "GET /robots.txt HTTP/1.1" [redacted]
2020-08-28 17:40:04
139.199.1.166 attack
Aug 28 10:48:09 webhost01 sshd[26689]: Failed password for root from 139.199.1.166 port 56142 ssh2
Aug 28 10:49:50 webhost01 sshd[26731]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.1.166
...
2020-08-28 17:27:56
200.73.128.252 attack
(sshd) Failed SSH login from 200.73.128.252 (AR/Argentina/252.128.73.200.cab.prima.net.ar): 5 in the last 3600 secs
2020-08-28 17:15:53
183.134.91.53 attackbotsspam
Aug 28 04:20:27 plex-server sshd[319113]: Invalid user fredy from 183.134.91.53 port 50104
Aug 28 04:20:27 plex-server sshd[319113]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.134.91.53 
Aug 28 04:20:27 plex-server sshd[319113]: Invalid user fredy from 183.134.91.53 port 50104
Aug 28 04:20:29 plex-server sshd[319113]: Failed password for invalid user fredy from 183.134.91.53 port 50104 ssh2
Aug 28 04:22:55 plex-server sshd[320306]: Invalid user grq from 183.134.91.53 port 49590
...
2020-08-28 17:49:17
94.102.51.78 attackspam
$f2bV_matches
2020-08-28 17:48:11
103.141.138.228 attackspambots
Port scan denied
2020-08-28 17:15:41

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