City: unknown
Region: unknown
Country: United States
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
# start
NetRange: 21.0.0.0 - 21.255.255.255
CIDR: 21.0.0.0/8
NetName: DNIC-SNET-021
NetHandle: NET-21-0-0-0-1
Parent: ()
NetType: Direct Allocation
OriginAS:
Organization: United States Department of Defense (DoD) (USDDD)
RegDate: 1991-07-01
Updated: 2025-09-05
Ref: https://rdap.arin.net/registry/ip/21.0.0.0
OrgName: United States Department of Defense (DoD)
OrgId: USDDD
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
RegDate: 2007-01-12
Updated: 2025-03-13
Ref: https://rdap.arin.net/registry/entity/USDDD
OrgTechHandle: REGIS10-ARIN
OrgTechName: Registration
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
OrgAbuseHandle: MIL-HSTMST-ARIN
OrgAbuseName: Network DoD
OrgAbusePhone: +1-844-347-2457
OrgAbuseEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgAbuseRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
OrgNOCHandle: MIL-HSTMST-ARIN
OrgNOCName: Network DoD
OrgNOCPhone: +1-844-347-2457
OrgNOCEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgNOCRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
# end
# start
NetRange: 21.0.0.0 - 21.255.255.255
CIDR: 21.0.0.0/8
NetName: DNIC-SNET-021
NetHandle: NET-21-0-0-0-2
Parent: DNIC-SNET-021 (NET-21-0-0-0-1)
NetType: Reallocated
OriginAS:
Organization: DoD Network Information Center (DNIC)
RegDate: 2025-09-05
Updated: 2025-09-05
Ref: https://rdap.arin.net/registry/ip/21.0.0.0
OrgName: DoD Network Information Center
OrgId: DNIC
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
RegDate:
Updated: 2025-03-13
Ref: https://rdap.arin.net/registry/entity/DNIC
OrgTechHandle: REGIS10-ARIN
OrgTechName: Registration
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
OrgAbuseName: Registration
OrgAbusePhone: +1-844-347-2457
OrgAbuseEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgAbuseRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
# end
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#; <<>> DiG 9.10.3-P4-Ubuntu <<>> 21.203.8.184
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15120
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;21.203.8.184. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026032302 1800 900 604800 86400
;; Query time: 7 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Mar 24 12:16:48 CST 2026
;; MSG SIZE rcvd: 105Host 184.8.203.21.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 184.8.203.21.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 88.214.26.97 | attackspambots | SSH login attempts. |
2020-03-20 13:51:59 |
| 198.46.205.89 | attackspam | SSH login attempts. |
2020-03-20 14:09:22 |
| 115.186.188.53 | attackspambots | Invalid user juan from 115.186.188.53 port 56380 |
2020-03-20 14:08:48 |
| 217.23.194.27 | attackbotsspam | SSH login attempts. |
2020-03-20 14:25:07 |
| 142.93.133.83 | attackspam | SSH login attempts. |
2020-03-20 14:11:10 |
| 5.188.86.207 | attackspam | SSH login attempts. |
2020-03-20 14:31:30 |
| 5.188.87.58 | attack | SSH login attempts. |
2020-03-20 14:17:00 |
| 46.59.16.30 | attackspam | 20 attempts against mh-ssh on cloud |
2020-03-20 13:58:25 |
| 222.112.107.46 | attackspambots | Mar 20 07:00:07 debian-2gb-nbg1-2 kernel: \[6943110.735578\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=222.112.107.46 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=237 ID=14658 PROTO=TCP SPT=32767 DPT=8545 WINDOW=1024 RES=0x00 SYN URGP=0 |
2020-03-20 14:05:38 |
| 64.225.24.239 | attack | Mar 19 20:07:53 php1 sshd\[25866\]: Invalid user laohua from 64.225.24.239 Mar 19 20:07:53 php1 sshd\[25866\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.24.239 Mar 19 20:07:54 php1 sshd\[25866\]: Failed password for invalid user laohua from 64.225.24.239 port 43926 ssh2 Mar 19 20:12:30 php1 sshd\[26305\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.24.239 user=root Mar 19 20:12:32 php1 sshd\[26305\]: Failed password for root from 64.225.24.239 port 36800 ssh2 |
2020-03-20 14:26:21 |
| 45.141.156.203 | attackspambots | SSH login attempts. |
2020-03-20 14:07:04 |
| 51.159.28.87 | attackspambots | Invalid user user100 from 51.159.28.87 port 44286 |
2020-03-20 14:22:36 |
| 173.235.122.54 | attackspambots | Brute forcing email accounts |
2020-03-20 14:10:46 |
| 201.249.169.210 | attack | 20 attempts against mh-ssh on cloud |
2020-03-20 13:59:37 |
| 173.249.57.253 | attackbots | Mar 20 03:58:48 vlre-nyc-1 sshd\[11221\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.249.57.253 user=root Mar 20 03:58:50 vlre-nyc-1 sshd\[11221\]: Failed password for root from 173.249.57.253 port 36396 ssh2 Mar 20 03:58:53 vlre-nyc-1 sshd\[11221\]: Failed password for root from 173.249.57.253 port 36396 ssh2 Mar 20 03:59:00 vlre-nyc-1 sshd\[11221\]: Failed password for root from 173.249.57.253 port 36396 ssh2 Mar 20 03:59:02 vlre-nyc-1 sshd\[11221\]: Failed password for root from 173.249.57.253 port 36396 ssh2 ... |
2020-03-20 14:02:25 |