do i need to have a router if my mail server itself is having the public ip? this is my 1st time trying to configure a system to have a public ip so might need some help on this. do i need 2 network cards?? 1 for internal ip and the other for external ip currently my mail server is filtering internal email address to be stored in the server itself but external email addresses to be sent out to our isp immediately upon receipt i might need to reconfigure certain things there.. is there anyone with this kind of experience before? i am considering using my own dns...can i dump everything in to this server (dns,sendmail....)? ----- Original Message ----- From: "nate" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, March 05, 2003 12:49 PM Subject: Re: Help in managing own mail server
Daniel Tan said: > What are the things (concerns) that i should do to port the server over to > my office? > 1) From what i know, need to get public IP (which will then be opened up > to everyone - insecure) only need 1 public ip. IDEALLY the mail server should have it's own public IP but it's not required. you can port forward in from your router provided the router has a public IP, very few ISPs put their customers behind NAT at the ISP level ..though some ISPs don't allow their customers access to their own routers.... > 2) Will need to learn how to install and configure firewall...blah > blah.... if smtp is all your using, there probably won't be much for a firewall depending on your setup ...the most basic setup can just put the mail server behind a NAT box ..though of course this isn't the most secure situation. > 3) Resolving of domain name think will still be at ISP except > that i need to point to their nameserver (i suppose) yep, if your ISP is hosting your DNS then just have them point the MX to you. It may be good to have them act as a backup MX incase your connection is down. That way mail will still be accepted for your domain(s), and will be re-delivered to you once your connection comes back up. If your connection is reliable you probably don't need this(I've run my email w/o a secondary MX for 5 years w/o any problems, longest outage was about 3 days due to premature disconnection by my telco) > 4) Any of concerns that i should know of...please let me know...gimme some > input so i can let my manager consider the switch...thanks...need this > a.s.a.p nothing specific. running a basic mail server is fairly simple. > > red hat currently using sendmail and bind be sure your sendmail has that new patch ..and consider moving to postfix/exim for better long term security. or qmail if that's your thing(trying to avoid flamewar). If you have the time to stay on top of patches(I do, seems more often people don't seem to though) sendmail is probably fine. nate -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
