ucspi-tcp

tcpserver examples

tcpserver files can export environment variables based upon IP addresses or ranges allowing you to change options in, for example, your SMTP services.

The /etc/tcp/smtp file can be adjusted to allow certain checks to be bypassed by IP addresses or ranges.

Skip jgreylist
192.168.0..:allow,,JGREYLIST=""
Skip greetdelay
192.168.0..:allow,GREETDELAY=""
Skip content scanner
192.168.0..:allow,QMAILQUEUE="/var/qmail/bin/qmail-queue"

Technology:

UCSPI-TCP

ucspi-tcp is djb's implementation of UNIX Client-Server Program Interface using TCP.

ucspi-tcp is djb's implementation of UNIX Client-Server Program Interface using TCP. It's used on our server to manage what IPs are allowed to connect to the SMTP service(s) as well as passing any environment variables that those IPs might want to use.

Installation
Download the source tarball:

cd /extra/src
wget http://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz
tar xvzf ucspi-tcp-0.88.tar.gz
cd ucspi-tcp-0.88

Technology:

Subscribe to RSS - ucspi-tcp

Recent Updates

  • 2 years 2 days ago
  • 2 years 2 days ago
  • 2 years 5 days ago
    php 8.x
  • 2 years 6 days ago
    10.6.7
  • 2 years 1 week ago
    Drop Centos 5/6 stuff