Date: Thu, 15 Mar 2001 20:29:19 +0000 From: Adam Laurie <adam@algroup.co.uk> To: Nate Williams <nate@yogotech.com> Cc: Ronan Lucio <ronan@melim.com.br>, security@FreeBSD.ORG Subject: Re: Port 113 Message-ID: <3AB1261F.23B8BE75@algroup.co.uk> References: <006b01c0ad38$39eed0a0$1401a8c0@tedm.placo.com> <099801c0ad7c$75b63800$2aa8a8c0@melim.com.br> <15025.5630.472269.543769@nomad.yogotech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Nate Williams wrote: > > > Could anybody say me when I need to allow the port 113 > > in the firewall? > > *Need* form auth is a strong word. However, it does tend to speed up > email transfers is you enable a version that always responds true. > > So, any external SMTP servers you have *should* have this port enabled. > > > What services use this port? > > I know that SMTP uses it, and I believe that ftpd uses it, and I believe > irc also uses it. smtp does not need to use it - you can achieve the same speedy transfers by telling your smtp server not to bother. e.g. for sendmail: O Timeout.ident=0s > > For example: I have a computer that is only DNS server, > > Does this port need allow connections the to DNS service work? > > I don't believe so, but someone will certainly correct me if I'm wrong. dns does not need ident. cheers, Adam -- Adam Laurie Tel: +44 (20) 8742 0755 A.L. Digital Ltd. Fax: +44 (20) 8742 5995 Voysey House http://www.thebunker.net Barley Mow Passage http://www.aldigital.co.uk London W4 4GB mailto:adam@algroup.co.uk UNITED KINGDOM PGP key on keyservers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3AB1261F.23B8BE75>