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

Internet Service Provider: Global Frag Networks

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attack
Nov 19 13:47:22 mxgate1 postfix/postscreen[7608]: CONNECT from [104.148.21.248]:33592 to [176.31.12.44]:25
Nov 19 13:47:22 mxgate1 postfix/dnsblog[7610]: addr 104.148.21.248 listed by domain zen.spamhaus.org as 127.0.0.3
Nov 19 13:47:22 mxgate1 postfix/dnsblog[7609]: addr 104.148.21.248 listed by domain b.barracudacentral.org as 127.0.0.2
Nov 19 13:47:28 mxgate1 postfix/postscreen[7608]: DNSBL rank 3 for [104.148.21.248]:33592
Nov x@x
Nov 19 13:47:29 mxgate1 postfix/postscreen[7608]: DISCONNECT [104.148.21.248]:33592


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=104.148.21.248
2019-11-19 22:51:50
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.148.21.248
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 20003
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			240	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019111900 1800 900 604800 86400

;; Query time: 234 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Nov 19 22:51:42 CST 2019
;; MSG SIZE  rcvd: 118
Host info
Host 248.21.148.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 248.21.148.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.186.173.201 attackspambots
2020-09-12T19:27:51.510350vps773228.ovh.net sshd[3394]: Failed password for root from 222.186.173.201 port 47426 ssh2
2020-09-12T19:27:54.848261vps773228.ovh.net sshd[3394]: Failed password for root from 222.186.173.201 port 47426 ssh2
2020-09-12T19:27:58.069107vps773228.ovh.net sshd[3394]: Failed password for root from 222.186.173.201 port 47426 ssh2
2020-09-12T19:28:01.702120vps773228.ovh.net sshd[3394]: Failed password for root from 222.186.173.201 port 47426 ssh2
2020-09-12T19:28:05.086825vps773228.ovh.net sshd[3394]: Failed password for root from 222.186.173.201 port 47426 ssh2
...
2020-09-13 01:31:11
85.13.91.209 attackspam
Sep 11 18:41:38 mail.srvfarm.net postfix/smtps/smtpd[3892333]: warning: host-85-13-91-209.lidos.cz[85.13.91.209]: SASL PLAIN authentication failed: 
Sep 11 18:41:38 mail.srvfarm.net postfix/smtps/smtpd[3892333]: lost connection after AUTH from host-85-13-91-209.lidos.cz[85.13.91.209]
Sep 11 18:50:38 mail.srvfarm.net postfix/smtpd[3893791]: warning: host-85-13-91-209.lidos.cz[85.13.91.209]: SASL PLAIN authentication failed: 
Sep 11 18:50:38 mail.srvfarm.net postfix/smtpd[3893791]: lost connection after AUTH from host-85-13-91-209.lidos.cz[85.13.91.209]
Sep 11 18:51:27 mail.srvfarm.net postfix/smtpd[3894615]: warning: host-85-13-91-209.lidos.cz[85.13.91.209]: SASL PLAIN authentication failed:
2020-09-13 01:19:09
47.88.213.154 attackspam
11.09.2020 16:51:43 Recursive DNS scan
2020-09-13 01:22:31
193.169.253.48 attackspambots
Sep 12 12:33:27 web01.agentur-b-2.de postfix/smtpd[2094103]: warning: unknown[193.169.253.48]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 12 12:33:27 web01.agentur-b-2.de postfix/smtpd[2094103]: lost connection after AUTH from unknown[193.169.253.48]
Sep 12 12:33:49 web01.agentur-b-2.de postfix/smtpd[2095009]: warning: unknown[193.169.253.48]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 12 12:33:49 web01.agentur-b-2.de postfix/smtpd[2095009]: lost connection after AUTH from unknown[193.169.253.48]
Sep 12 12:34:58 web01.agentur-b-2.de postfix/smtpd[2094103]: warning: unknown[193.169.253.48]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2020-09-13 01:40:30
112.85.42.229 attack
Sep 12 17:25:38 melroy-server sshd[8878]: Failed password for root from 112.85.42.229 port 51646 ssh2
Sep 12 17:25:40 melroy-server sshd[8878]: Failed password for root from 112.85.42.229 port 51646 ssh2
...
2020-09-13 01:06:43
202.83.44.109 attackbots
REQUESTED PAGE: /GponForm/diag_Form?images/
2020-09-13 01:20:27
89.97.218.142 attackbotsspam
Sep 12 17:16:18 sso sshd[9900]: Failed password for root from 89.97.218.142 port 56096 ssh2
...
2020-09-13 01:24:24
89.248.171.89 attackspam
Email login attempts - bad mail account name (SMTP)
2020-09-13 01:37:00
143.208.248.58 attack
Sep 11 18:16:23 mail.srvfarm.net postfix/smtpd[3890715]: warning: unknown[143.208.248.58]: SASL PLAIN authentication failed: 
Sep 11 18:16:24 mail.srvfarm.net postfix/smtpd[3890715]: lost connection after AUTH from unknown[143.208.248.58]
Sep 11 18:16:52 mail.srvfarm.net postfix/smtps/smtpd[3892326]: warning: unknown[143.208.248.58]: SASL PLAIN authentication failed: 
Sep 11 18:16:53 mail.srvfarm.net postfix/smtps/smtpd[3892326]: lost connection after AUTH from unknown[143.208.248.58]
Sep 11 18:22:47 mail.srvfarm.net postfix/smtpd[3889893]: warning: unknown[143.208.248.58]: SASL PLAIN authentication failed:
2020-09-13 01:41:52
211.103.222.34 attack
SSH Brute Force
2020-09-13 01:08:22
27.6.78.101 attack
SIP Server BruteForce Attack
2020-09-13 01:20:14
112.85.42.238 attackbotsspam
Sep 12 19:03:20 piServer sshd[23581]: Failed password for root from 112.85.42.238 port 30622 ssh2
Sep 12 19:03:22 piServer sshd[23581]: Failed password for root from 112.85.42.238 port 30622 ssh2
Sep 12 19:03:25 piServer sshd[23581]: Failed password for root from 112.85.42.238 port 30622 ssh2
...
2020-09-13 01:04:43
115.233.224.130 attack
Sep 12 08:22:57 root sshd[32632]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.233.224.130 
...
2020-09-13 01:42:16
119.212.101.8 attackspambots
Port Scan detected!
...
2020-09-13 01:16:18
60.243.231.74 attackbotsspam
" "
2020-09-13 01:18:47

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