Is port 691 (MS Exchange Routing) dangerous?

Port 691 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 691 be open on my firewall?

Port 691 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 691 use?

Port 691 (MS Exchange Routing) uses the TCP transport protocol and falls under the Email category.

:691 (TCP)

MS Exchange Routing

Medium Risiko

TCP — Email

Ikhtisar Port

Nomor Port 691

Nama Layanan MS Exchange Routing

Protokol Transport TCP

Kategori Email

Risiko Keamanan Medium

Rentang Port Well-Known (0-1023)

Apa itu Port 691?

Microsoft Exchange Server Link State routing protocol, used internally by Exchange 2000/2003 servers for routing topology. Deprecated in Exchange 2007.

TCP Email

Pertimbangan Keamanan

Port 691 (MS Exchange Routing) diklasifikasikan sebagai risiko sedang. Meskipun layanan ini umumnya diekspos, pertimbangkan untuk menggunakan alternatif terenkripsi jika tersedia.

Rekomendasi: Jaga layanan tetap diperbarui. Pantau log untuk aktivitas yang tidak biasa.

Port Terkait — Email

24 Private Mail System 25 SMTP 26 RSFTP 50 RE-MAIL-CK 58 XNS-MAIL 109 POP2 110 POP3 143 IMAP

Istilah Terkait

ARP FTP HTTP ICMP IMAP NTP