CF1760903007238-tsm20251017082432

WWW.RTSAK.COM - big-proxy.dsi.tecnico.ulisboa.pt

Search for IP or hostnames:

big-proxy.dsi.tecnico.ulisboa.pt checked at 2025-10-19T19:43:27.225Z 3061ms 89/89/89 100% R:27

big-proxy.dsi.tecnico.ulisboa.pt

MXsmtp1.tecnico.ulisboa.pt
A2001:690:2100:1::15 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp1.tecnico.ulisboa.pt
A193.136.128.21๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp1.tecnico.ulisboa.pt
MXsmtp2.tecnico.ulisboa.pt
A2001:690:2100:1::16 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp2.tecnico.ulisboa.pt
A193.136.128.22๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp2.tecnico.ulisboa.pt
MXsmtp.tecnico.ulisboa.pt
A2001:690:2100:1::25 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp.tecnico.ulisboa.pt
A193.136.128.20๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp.tecnico.ulisboa.pt
A2001:690:2100:14::1:113 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRv6-1.big-proxy.dsi.tecnico.ulisboa.pt
A2001:690:2100:14::1:114 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRv6-2.big-proxy.dsi.tecnico.ulisboa.pt
A193.136.152.113๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRv4-1.big-proxy.dsi.tecnico.ulisboa.pt
A193.136.152.114๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
PTRv4-2.big-proxy.dsi.tecnico.ulisboa.pt

dsi.tecnico.ulisboa.pt

MXsmtp1.tecnico.ulisboa.pt
MXsmtp2.tecnico.ulisboa.pt
MXsmtp.tecnico.ulisboa.pt
A2001:690:2100:1::6fbf:7f6 ๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional
A193.136.128.145๐Ÿ‡ต๐Ÿ‡น FCCN - Fundacao para a Computacao Cientifica Nacional

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AI analysis

big-proxy.dsi.tecnico.ulisboa.pt is parent of v4-2.big-proxy.dsi.tecnico.ulisboa.pt, v6-2.big-proxy.dsi.tecnico.ulisboa.pt, v6-1.big-proxy.dsi.tecnico.ulisboa.pt and v4-1.big-proxy.dsi.tecnico.ulisboa.pt.

big-proxy.dsi.tecnico.ulisboa.pt resolves to four IPs: 2001:690:2100:14::1:113, 2001:690:2100:14::1:114, 193.136.152.113 and 193.136.152.114.

Other host names such as v4-1.big-proxy.dsi.tecnico.ulisboa.pt, v4-2.big-proxy.dsi.tecnico.ulisboa.pt, v6-2.big-proxy.dsi.tecnico.ulisboa.pt, v6-1.big-proxy.dsi.tecnico.ulisboa.pt and dem.tecnico.ulisboa.pt share IP numbers with big-proxy.dsi.tecnico.ulisboa.pt.

Three mail servers handle big-proxy.dsi.tecnico.ulisboa.pt: smtp1.tecnico.ulisboa.pt, smtp2.tecnico.ulisboa.pt and smtp.tecnico.ulisboa.pt.

big-proxy.dsi.tecnico.ulisboa.pt shares at least some mail servers with other domains, for example nape.ist.utl.pt, fenix.ist.utl.pt, dei.ist.utl.pt, soma.isr.tecnico.ulisboa.pt and maretec.ist.utl.pt.

these mail servers are frequently used alongside the mail servers fenixedu3.ist.utl.pt.

Host names with two IP numbers:

smtp1.tecnico.ulisboa.pt points to 2001:690:2100:1::15 and 193.136.128.21

smtp2.tecnico.ulisboa.pt points to 2001:690:2100:1::16 and 193.136.128.22

smtp.tecnico.ulisboa.pt points to 2001:690:2100:1::25 and 193.136.128.20

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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