Is port 87 (ttylink / link) dangerous?

Port 87 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Should port 87 be open on my firewall?

Port 87 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 87 use?

Port 87 (ttylink / link) uses the TCP transport protocol and falls under the Messaging category.

:87 (TCP)

ttylink / link

Low Risiko

TCP — Messaging

Ikhtisar Port

Nomor Port 87

Nama Layanan ttylink / link

Protokol Transport TCP

Kategori Messaging

Risiko Keamanan Low

Rentang Port Well-Known (0-1023)

Apa itu Port 87?

Port 87 (also called 'link') was used for terminal-to-terminal chat on UNIX systems. It predates modern messaging systems and was common in 1980s UNIX environments. It is entirely obsolete.

TCP Messaging

Pertimbangan Keamanan

Port 87 (ttylink / link) diklasifikasikan sebagai risiko rendah. Layanan ini menggunakan enkripsi atau memiliki permukaan serangan yang minimal, sehingga relatif aman untuk diekspos.

Rekomendasi: Terapkan praktik keamanan standar. Jaga perangkat lunak tetap diperbarui dan pantau akses.

Port Terkait — Messaging

18 MSP 98 TACNews 99 Metagram 119 NNTP 169 SEND 194 IRC 218 MPP 267 TD-Service

Istilah Terkait

ARP FTP HTTP ICMP IMAP NTP