Sorry, I can't do anything about they way my mailer replies. Exchange administrators handle all of that.
I think we have lost site of the question I was addressing. You should have an entry in /etc/hosts for you system, which should be the same as the one in DNS if you have DNS. This entry for the system name is not required though. The IP address in /etc/hosts can be a 127.* address, or it can be the real IP address of you system. If the entry in /etc/hosts is the real IP address it must be routed to the loopback interface because real hardware does not send and receive at the same time, so without the route to the loopback interface you cannot access your system from your system. Note that virtual networks may not have this restriction. So: the question of which IP address goes into /etc/hosts makes no difference to the question of will things work locally if the interface is down. Some seem to be seeing some odd behavior of the loopback interface if the eth interface is down, so perhaps you would get what you want either way. It occurs to me that perhaps the eth and lo drivers in Linux are linked in some way, so maybe it doesn't matter if you don't route the local IP to the loopback interface. This might explain what some are seeing. -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of John Summerfield Sent: Monday, September 15, 2008 8:59 PM To: [email protected] Subject: Re: 127.0.0.2 in /etc/hosts? Fargusson.Alan wrote: Alan, I have a threaded view of my incoming email: its displayed in a tree hierarchy reflecting who replied to whom. For some reason, your email isn't being threaded properly. Could you pls check your settings and see whether there's something you can tweak? > Do you want it to work when the interface is up? What I was trying to say is > that with most hardware it will work when the interface is up or down, or it > will not work when the interface is up or down. You can't do what I think > you want. I'm not sure what you think you're saying here: what I expect is that if my external interface(s) is(are) down, I do not want applications working that should not. Many applications fail if names don't resolve, and when that happens it's abundantly clear that something is broken and I get to recognise that it needs to be fixed. If squid and sendmail and other stuff starts as if nothing's wrong when something is, it might be some time before I recognise that a network cable or a power cable has fallen out. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 __________________________________________________________________________________________________ CONFIDENTIALITY NOTICE: This email from the State of California is for the sole use of the intended recipient and may contain confidential and privileged information. Any unauthorized review or use, including disclosure or distribution, is prohibited. If you are not the intended recipient, please contact the sender and destroy all copies of this email.
