About DNS

From: dragon (siao@eastmail.com)
Date: 01/28/03 

From: "dragon" <siao@eastmail.com>
Date: Tue, 28 Jan 2003 23:43:46 +0800

Fact : Only root can bind the privileged ports(0~1023)
Fact : DNS service uses port 53
Fact : In my system, the effective user of the process "named" is "bind"
Question : How can this user "bind" uses port 53?

Thanks!

Relevant Pages

  • Re: How to listen to more a specific IP and specific ports
    ... bind my socket to specific unlimited and selective IP addresses. ... Moreover, in Unix/Linux Berekly network programming, you can determin the ... port numbers. ...
    (microsoft.public.win32.programmer.networks)
  • Re: How to listen to more a specific IP and specific ports
    ... I have read this long time ago in the textbook Unix Network Programming ... service and connect our socket to INADDR_ANY and then listen for incoming ... Its clear to me on how to bind with ... port numbers. ...
    (microsoft.public.win32.programmer.networks)
  • Re: How to listen to more a specific IP and specific ports
    ... bind my socket to specific unlimited and selective IP addresses. ... Moreover, in Unix/Linux Berekly network programming, you can determin the IP ... port numbers. ...
    (microsoft.public.win32.programmer.networks)
  • Re: How to listen to more a specific IP and specific ports
    ... bind my socket to specific unlimited and selective IP addresses. ... port numbers. ... is not feasible because the particular IPs are not fixed. ...
    (microsoft.public.win32.programmer.networks)
  • FreeBSD Security Advisory: FreeBSD-SA-01:18.bind
    ... BIND is an implementation of the Domain Name Service protocols. ... assist the ability of attackers to exploit the primary vulnerability ... the bind8 port in the ports collection ... If you have chosen to install BIND from the ports collection and are ...
    (FreeBSD-Security)