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: Ukraine

Internet Service Provider: PJSC Ukrtelecom

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attack
Apr 22 13:44:11 mail1 sshd[15824]: Did not receive identification string from 91.124.138.104 port 55986
Apr 22 13:44:30 mail1 sshd[15877]: Invalid user service from 91.124.138.104 port 63480
Apr 22 13:44:31 mail1 sshd[15877]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.124.138.104
Apr 22 13:44:33 mail1 sshd[15877]: Failed password for invalid user service from 91.124.138.104 port 63480 ssh2
Apr 22 13:44:33 mail1 sshd[15877]: Connection closed by 91.124.138.104 port 63480 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=91.124.138.104
2020-04-22 21:36:30
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 91.124.138.104
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25353
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			440	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020042200 1800 900 604800 86400

;; Query time: 98 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Apr 22 21:36:24 CST 2020
;; MSG SIZE  rcvd: 118
Host info
104.138.124.91.in-addr.arpa domain name pointer 104-138-124-91.pool.ukrtel.net.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
104.138.124.91.in-addr.arpa	name = 104-138-124-91.pool.ukrtel.net.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
49.232.33.182 attackbots
2020-06-24T00:50:07.657637afi-git.jinr.ru sshd[28320]: Failed password for invalid user www from 49.232.33.182 port 57882 ssh2
2020-06-24T00:54:19.180336afi-git.jinr.ru sshd[29771]: Invalid user nwu from 49.232.33.182 port 33386
2020-06-24T00:54:19.183960afi-git.jinr.ru sshd[29771]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.232.33.182
2020-06-24T00:54:19.180336afi-git.jinr.ru sshd[29771]: Invalid user nwu from 49.232.33.182 port 33386
2020-06-24T00:54:21.237058afi-git.jinr.ru sshd[29771]: Failed password for invalid user nwu from 49.232.33.182 port 33386 ssh2
...
2020-06-24 08:20:47
31.145.150.194 attack
Unauthorized connection attempt from IP address 31.145.150.194 on Port 445(SMB)
2020-06-24 08:20:33
122.51.0.120 attack
Jun 23 23:10:14 buvik sshd[15403]: Failed password for invalid user pbsdata from 122.51.0.120 port 60904 ssh2
Jun 23 23:17:24 buvik sshd[16407]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.0.120  user=root
Jun 23 23:17:26 buvik sshd[16407]: Failed password for root from 122.51.0.120 port 34638 ssh2
...
2020-06-24 08:33:44
93.75.206.13 attackspam
Jun 24 01:07:11 abendstille sshd\[23463\]: Invalid user cloud_user from 93.75.206.13
Jun 24 01:07:11 abendstille sshd\[23463\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.75.206.13
Jun 24 01:07:13 abendstille sshd\[23463\]: Failed password for invalid user cloud_user from 93.75.206.13 port 64115 ssh2
Jun 24 01:08:45 abendstille sshd\[24905\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.75.206.13  user=root
Jun 24 01:08:47 abendstille sshd\[24905\]: Failed password for root from 93.75.206.13 port 17800 ssh2
...
2020-06-24 08:12:26
192.241.227.80 attackspam
" "
2020-06-24 08:23:31
218.75.72.82 attackspambots
Jun 23 23:14:21 marvibiene sshd[18543]: Invalid user ent from 218.75.72.82 port 49928
Jun 23 23:14:21 marvibiene sshd[18543]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.75.72.82
Jun 23 23:14:21 marvibiene sshd[18543]: Invalid user ent from 218.75.72.82 port 49928
Jun 23 23:14:23 marvibiene sshd[18543]: Failed password for invalid user ent from 218.75.72.82 port 49928 ssh2
...
2020-06-24 08:17:50
46.38.150.188 attack
Jun 24 00:42:13 blackbee postfix/smtpd\[11710\]: warning: unknown\[46.38.150.188\]: SASL LOGIN authentication failed: authentication failure
Jun 24 00:42:59 blackbee postfix/smtpd\[11710\]: warning: unknown\[46.38.150.188\]: SASL LOGIN authentication failed: authentication failure
Jun 24 00:43:40 blackbee postfix/smtpd\[11710\]: warning: unknown\[46.38.150.188\]: SASL LOGIN authentication failed: authentication failure
Jun 24 00:44:28 blackbee postfix/smtpd\[11710\]: warning: unknown\[46.38.150.188\]: SASL LOGIN authentication failed: authentication failure
Jun 24 00:45:08 blackbee postfix/smtpd\[11710\]: warning: unknown\[46.38.150.188\]: SASL LOGIN authentication failed: authentication failure
...
2020-06-24 08:29:12
51.81.21.185 attack
Telnetd brute force attack detected by fail2ban
2020-06-24 08:16:02
118.70.81.241 attack
Jun 24 01:49:28 dev0-dcde-rnet sshd[28689]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.70.81.241
Jun 24 01:49:31 dev0-dcde-rnet sshd[28689]: Failed password for invalid user camille from 118.70.81.241 port 44555 ssh2
Jun 24 01:56:51 dev0-dcde-rnet sshd[28747]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.70.81.241
2020-06-24 08:14:18
1.164.180.187 attack
Unauthorized connection attempt from IP address 1.164.180.187 on Port 445(SMB)
2020-06-24 08:24:25
175.140.85.253 attackspam
Jun 24 01:08:08 DAAP sshd[19440]: Invalid user yr from 175.140.85.253 port 57732
Jun 24 01:08:08 DAAP sshd[19440]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.140.85.253
Jun 24 01:08:08 DAAP sshd[19440]: Invalid user yr from 175.140.85.253 port 57732
Jun 24 01:08:09 DAAP sshd[19440]: Failed password for invalid user yr from 175.140.85.253 port 57732 ssh2
Jun 24 01:10:38 DAAP sshd[19520]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.140.85.253  user=root
Jun 24 01:10:40 DAAP sshd[19520]: Failed password for root from 175.140.85.253 port 51742 ssh2
...
2020-06-24 08:05:01
211.76.35.196 attackspambots
Port Scan detected!
...
2020-06-24 08:10:19
5.140.83.171 attack
1592944285 - 06/23/2020 22:31:25 Host: 5.140.83.171/5.140.83.171 Port: 445 TCP Blocked
2020-06-24 08:14:39
178.95.140.131 attackbots
Unauthorized connection attempt from IP address 178.95.140.131 on Port 445(SMB)
2020-06-24 08:27:40
221.149.8.48 attackspam
Jun 23 19:24:40 Host-KEWR-E sshd[2212]: User root from 221.149.8.48 not allowed because not listed in AllowUsers
...
2020-06-24 08:06:06

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