Is port 109 (POP2) dangerous?

Port 109 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 109 be open on my firewall?

Port 109 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 109 use?

Port 109 (POP2) uses the TCP transport protocol and falls under the Email category.

:109 (TCP)

POP2

Medium Risiko

TCP — Email

Ikhtisar Port

Nomor Port 109

Nama Layanan POP2

Protokol Transport TCP

Kategori Email

Risiko Keamanan Medium

Rentang Port Well-Known (0-1023)

Apa itu Port 109?

POP2 (Post Office Protocol version 2) is the predecessor to POP3, defined in RFC 937. It is completely obsolete; all modern email clients use POP3 (port 110) or IMAP (port 143).

TCP Email

Pertimbangan Keamanan

Port 109 (POP2) 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 110 POP3 143 IMAP 158 PCMail Server

Istilah Terkait

ARP FTP HTTP ICMP IMAP NTP