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: Czechia

Internet Service Provider: OK COMP s.r.o.

Hostname: unknown

Organization: unknown

Usage Type: Commercial

Comments:
Type Details Datetime
attack
Aug 27 04:21:01 mail.srvfarm.net postfix/smtpd[1314728]: warning: unknown[91.245.30.92]: SASL PLAIN authentication failed: 
Aug 27 04:21:01 mail.srvfarm.net postfix/smtpd[1314728]: lost connection after AUTH from unknown[91.245.30.92]
Aug 27 04:22:47 mail.srvfarm.net postfix/smtpd[1332132]: warning: unknown[91.245.30.92]: SASL PLAIN authentication failed: 
Aug 27 04:22:47 mail.srvfarm.net postfix/smtpd[1332132]: lost connection after AUTH from unknown[91.245.30.92]
Aug 27 04:24:00 mail.srvfarm.net postfix/smtpd[1313892]: warning: unknown[91.245.30.92]: SASL PLAIN authentication failed:
2020-08-28 09:43:43
Comments on same subnet:
IP Type Details Datetime
91.245.30.150 attackspambots
Sep 11 18:00:30 mail.srvfarm.net postfix/smtps/smtpd[3875317]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Sep 11 18:00:30 mail.srvfarm.net postfix/smtps/smtpd[3875317]: lost connection after AUTH from unknown[91.245.30.150]
Sep 11 18:06:45 mail.srvfarm.net postfix/smtps/smtpd[3875620]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Sep 11 18:06:45 mail.srvfarm.net postfix/smtps/smtpd[3875620]: lost connection after AUTH from unknown[91.245.30.150]
Sep 11 18:08:32 mail.srvfarm.net postfix/smtpd[3889545]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed:
2020-09-13 01:43:37
91.245.30.150 attackspam
Sep 11 18:00:30 mail.srvfarm.net postfix/smtps/smtpd[3875317]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Sep 11 18:00:30 mail.srvfarm.net postfix/smtps/smtpd[3875317]: lost connection after AUTH from unknown[91.245.30.150]
Sep 11 18:06:45 mail.srvfarm.net postfix/smtps/smtpd[3875620]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Sep 11 18:06:45 mail.srvfarm.net postfix/smtps/smtpd[3875620]: lost connection after AUTH from unknown[91.245.30.150]
Sep 11 18:08:32 mail.srvfarm.net postfix/smtpd[3889545]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed:
2020-09-12 17:43:32
91.245.30.79 attack
Sep  7 12:09:56 mail.srvfarm.net postfix/smtpd[1050887]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed: 
Sep  7 12:09:56 mail.srvfarm.net postfix/smtpd[1050887]: lost connection after AUTH from unknown[91.245.30.79]
Sep  7 12:14:31 mail.srvfarm.net postfix/smtpd[1050882]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed: 
Sep  7 12:14:31 mail.srvfarm.net postfix/smtpd[1050882]: lost connection after AUTH from unknown[91.245.30.79]
Sep  7 12:15:08 mail.srvfarm.net postfix/smtpd[1039277]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed:
2020-09-12 02:45:11
91.245.30.79 attack
Sep  7 12:09:56 mail.srvfarm.net postfix/smtpd[1050887]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed: 
Sep  7 12:09:56 mail.srvfarm.net postfix/smtpd[1050887]: lost connection after AUTH from unknown[91.245.30.79]
Sep  7 12:14:31 mail.srvfarm.net postfix/smtpd[1050882]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed: 
Sep  7 12:14:31 mail.srvfarm.net postfix/smtpd[1050882]: lost connection after AUTH from unknown[91.245.30.79]
Sep  7 12:15:08 mail.srvfarm.net postfix/smtpd[1039277]: warning: unknown[91.245.30.79]: SASL PLAIN authentication failed:
2020-09-11 18:41:19
91.245.30.71 attackspambots
Brute force attempt
2020-08-31 13:04:59
91.245.30.125 attack
Aug 16 05:14:59 mail.srvfarm.net postfix/smtps/smtpd[1888763]: warning: unknown[91.245.30.125]: SASL PLAIN authentication failed: 
Aug 16 05:14:59 mail.srvfarm.net postfix/smtps/smtpd[1888763]: lost connection after AUTH from unknown[91.245.30.125]
Aug 16 05:22:34 mail.srvfarm.net postfix/smtpd[1888825]: warning: unknown[91.245.30.125]: SASL PLAIN authentication failed: 
Aug 16 05:22:34 mail.srvfarm.net postfix/smtpd[1888825]: lost connection after AUTH from unknown[91.245.30.125]
Aug 16 05:24:01 mail.srvfarm.net postfix/smtpd[1888504]: warning: unknown[91.245.30.125]: SASL PLAIN authentication failed:
2020-08-16 13:05:13
91.245.30.150 attackspam
Jul 31 13:44:23 mail.srvfarm.net postfix/smtpd[346670]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Jul 31 13:44:23 mail.srvfarm.net postfix/smtpd[346670]: lost connection after AUTH from unknown[91.245.30.150]
Jul 31 13:46:32 mail.srvfarm.net postfix/smtps/smtpd[344849]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Jul 31 13:46:32 mail.srvfarm.net postfix/smtps/smtpd[344849]: lost connection after AUTH from unknown[91.245.30.150]
Jul 31 13:49:58 mail.srvfarm.net postfix/smtps/smtpd[348862]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed:
2020-08-01 00:31:18
91.245.30.105 attack
Jul 31 10:41:23 mail.srvfarm.net postfix/smtpd[280510]: warning: unknown[91.245.30.105]: SASL PLAIN authentication failed: 
Jul 31 10:41:23 mail.srvfarm.net postfix/smtpd[280510]: lost connection after AUTH from unknown[91.245.30.105]
Jul 31 10:41:40 mail.srvfarm.net postfix/smtps/smtpd[274710]: warning: unknown[91.245.30.105]: SASL PLAIN authentication failed: 
Jul 31 10:41:40 mail.srvfarm.net postfix/smtps/smtpd[274710]: lost connection after AUTH from unknown[91.245.30.105]
Jul 31 10:48:26 mail.srvfarm.net postfix/smtps/smtpd[278874]: warning: unknown[91.245.30.105]: SASL PLAIN authentication failed:
2020-07-31 17:22:19
91.245.30.146 attack
(smtpauth) Failed SMTP AUTH login from 91.245.30.146 (CZ/Czechia/static30-146.okcomp.cz): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-31 08:23:45 plain authenticator failed for ([91.245.30.146]) [91.245.30.146]: 535 Incorrect authentication data (set_id=a.nasiri)
2020-07-31 14:47:17
91.245.30.107 attack
Jul 29 08:08:18 Host-KEWR-E postfix/smtps/smtpd[30397]: lost connection after AUTH from unknown[91.245.30.107]
...
2020-07-30 02:08:00
91.245.30.100 attackspambots
(smtpauth) Failed SMTP AUTH login from 91.245.30.100 (CZ/Czechia/static30-100.okcomp.cz): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-28 16:35:05 plain authenticator failed for ([91.245.30.100]) [91.245.30.100]: 535 Incorrect authentication data (set_id=nasr)
2020-07-28 23:53:11
91.245.30.147 attackspam
Jul 26 05:47:51 mail.srvfarm.net postfix/smtps/smtpd[1027769]: warning: unknown[91.245.30.147]: SASL PLAIN authentication failed: 
Jul 26 05:47:51 mail.srvfarm.net postfix/smtps/smtpd[1027769]: lost connection after AUTH from unknown[91.245.30.147]
Jul 26 05:50:19 mail.srvfarm.net postfix/smtps/smtpd[1031887]: warning: unknown[91.245.30.147]: SASL PLAIN authentication failed: 
Jul 26 05:50:19 mail.srvfarm.net postfix/smtps/smtpd[1031887]: lost connection after AUTH from unknown[91.245.30.147]
Jul 26 05:52:29 mail.srvfarm.net postfix/smtps/smtpd[1032031]: warning: unknown[91.245.30.147]: SASL PLAIN authentication failed:
2020-07-26 17:32:59
91.245.30.75 attackspambots
SASL PLAIN auth failed: ruser=...
2020-07-16 08:31:09
91.245.30.115 attack
Jun 16 05:23:09 mail.srvfarm.net postfix/smtps/smtpd[938143]: warning: unknown[91.245.30.115]: SASL PLAIN authentication failed: 
Jun 16 05:23:09 mail.srvfarm.net postfix/smtps/smtpd[938143]: lost connection after AUTH from unknown[91.245.30.115]
Jun 16 05:26:56 mail.srvfarm.net postfix/smtpd[916111]: warning: unknown[91.245.30.115]: SASL PLAIN authentication failed: 
Jun 16 05:26:56 mail.srvfarm.net postfix/smtpd[916111]: lost connection after AUTH from unknown[91.245.30.115]
Jun 16 05:28:42 mail.srvfarm.net postfix/smtps/smtpd[936248]: warning: unknown[91.245.30.115]: SASL PLAIN authentication failed:
2020-06-16 16:21:02
91.245.30.150 attackspam
Jun  5 18:29:15 mail.srvfarm.net postfix/smtps/smtpd[3174072]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Jun  5 18:29:15 mail.srvfarm.net postfix/smtps/smtpd[3174072]: lost connection after AUTH from unknown[91.245.30.150]
Jun  5 18:35:54 mail.srvfarm.net postfix/smtps/smtpd[3174071]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed: 
Jun  5 18:35:54 mail.srvfarm.net postfix/smtps/smtpd[3174071]: lost connection after AUTH from unknown[91.245.30.150]
Jun  5 18:37:37 mail.srvfarm.net postfix/smtps/smtpd[3175482]: warning: unknown[91.245.30.150]: SASL PLAIN authentication failed:
2020-06-07 23:41:21
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 91.245.30.92
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49740
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			305	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020082702 1800 900 604800 86400

;; Query time: 156 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Aug 28 09:43:36 CST 2020
;; MSG SIZE  rcvd: 116
Host info
92.30.245.91.in-addr.arpa domain name pointer static30-092.okcomp.cz.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
92.30.245.91.in-addr.arpa	name = static30-092.okcomp.cz.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
60.251.136.127 attackbots
Mar 21 18:34:58 ArkNodeAT sshd\[13910\]: Invalid user ov from 60.251.136.127
Mar 21 18:34:58 ArkNodeAT sshd\[13910\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.251.136.127
Mar 21 18:35:00 ArkNodeAT sshd\[13910\]: Failed password for invalid user ov from 60.251.136.127 port 46595 ssh2
2020-03-22 03:49:26
51.75.255.166 attackspam
Mar 21 20:29:06 silence02 sshd[16867]: Failed password for irc from 51.75.255.166 port 53100 ssh2
Mar 21 20:35:36 silence02 sshd[17230]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.255.166
Mar 21 20:35:38 silence02 sshd[17230]: Failed password for invalid user la from 51.75.255.166 port 45020 ssh2
2020-03-22 03:53:55
89.46.86.65 attackspam
SSH invalid-user multiple login attempts
2020-03-22 03:42:00
103.248.83.249 attackspam
2020-03-21T19:14:49.103286vps773228.ovh.net sshd[7978]: Invalid user kf2server from 103.248.83.249 port 55398
2020-03-21T19:14:49.128957vps773228.ovh.net sshd[7978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.248.83.249
2020-03-21T19:14:49.103286vps773228.ovh.net sshd[7978]: Invalid user kf2server from 103.248.83.249 port 55398
2020-03-21T19:14:51.275790vps773228.ovh.net sshd[7978]: Failed password for invalid user kf2server from 103.248.83.249 port 55398 ssh2
2020-03-21T19:17:13.038607vps773228.ovh.net sshd[8878]: Invalid user oe from 103.248.83.249 port 53920
...
2020-03-22 03:35:51
106.13.88.44 attackbotsspam
Mar 21 16:13:43 firewall sshd[20470]: Invalid user shuchang from 106.13.88.44
Mar 21 16:13:45 firewall sshd[20470]: Failed password for invalid user shuchang from 106.13.88.44 port 45776 ssh2
Mar 21 16:16:24 firewall sshd[20591]: Invalid user keli from 106.13.88.44
...
2020-03-22 03:32:24
51.75.203.178 attack
2020-03-21T19:57:02.111090v22018076590370373 sshd[31696]: Invalid user viktor from 51.75.203.178 port 38684
2020-03-21T19:57:02.117274v22018076590370373 sshd[31696]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.203.178
2020-03-21T19:57:02.111090v22018076590370373 sshd[31696]: Invalid user viktor from 51.75.203.178 port 38684
2020-03-21T19:57:04.334639v22018076590370373 sshd[31696]: Failed password for invalid user viktor from 51.75.203.178 port 38684 ssh2
2020-03-21T20:01:36.941251v22018076590370373 sshd[22041]: Invalid user se from 51.75.203.178 port 57002
...
2020-03-22 03:54:25
103.245.181.2 attackspambots
$f2bV_matches
2020-03-22 03:36:05
111.67.200.170 attackspam
bruteforce detected
2020-03-22 03:28:21
58.59.7.151 attackbotsspam
Invalid user yb from 58.59.7.151 port 46288
2020-03-22 03:51:20
50.116.101.52 attackspambots
Mar 21 21:02:14 lukav-desktop sshd\[20547\]: Invalid user liza from 50.116.101.52
Mar 21 21:02:14 lukav-desktop sshd\[20547\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=50.116.101.52
Mar 21 21:02:16 lukav-desktop sshd\[20547\]: Failed password for invalid user liza from 50.116.101.52 port 56876 ssh2
Mar 21 21:08:46 lukav-desktop sshd\[15765\]: Invalid user auburn from 50.116.101.52
Mar 21 21:08:46 lukav-desktop sshd\[15765\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=50.116.101.52
2020-03-22 03:56:18
139.59.43.98 attack
Mar 21 19:55:42 silence02 sshd[15027]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.43.98
Mar 21 19:55:45 silence02 sshd[15027]: Failed password for invalid user ch from 139.59.43.98 port 34440 ssh2
Mar 21 20:00:06 silence02 sshd[15237]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.43.98
2020-03-22 03:16:13
101.99.20.59 attackbots
Invalid user rofl from 101.99.20.59 port 59160
2020-03-22 03:38:05
123.49.47.26 attackspam
5x Failed Password
2020-03-22 03:21:52
106.54.10.188 attackbotsspam
Mar 21 20:13:05 localhost sshd\[30008\]: Invalid user ekp from 106.54.10.188 port 48436
Mar 21 20:13:05 localhost sshd\[30008\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.10.188
Mar 21 20:13:07 localhost sshd\[30008\]: Failed password for invalid user ekp from 106.54.10.188 port 48436 ssh2
2020-03-22 03:31:16
111.231.220.177 attack
SSH login attempts @ 2020-03-09 08:06:54
2020-03-22 03:25:58

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