Date: Wed, 16 Apr 2003 08:51:30 -0400 From: Bill Moran <wmoran@potentialtech.com> To: Gavin Kenny <gavinkenny@yahoo.co.uk> Cc: questions@freebsd.org Subject: Re: FTP gone Slow Message-ID: <3E9D51D2.4030001@potentialtech.com> In-Reply-To: <20030416124028.95569.qmail@web20712.mail.yahoo.com> References: <20030416124028.95569.qmail@web20712.mail.yahoo.com>
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Gavin Kenny wrote: > --- Bill Moran <wmoran@potentialtech.com> wrote: > > Gavin Kenny wrote: > >>>Hi Guys, >>> >>>I have been running FBSD4.4 quite happily for a >> >>while >> >>>now and I have recently got this problem. >>> >>>When I FTP into my box it connects fine but then >> >>takes >> >>>ages before I get a login prompt. >>> >>>It never used to do this, the login prompt used to >> >>be >> >>>instantaneous. >>> >>>Any ideas what I have done to mess this up? >> >>Have you done any diagnostic testing at all? I know >>you didn't >>do any searching, as this is discussed on this list >>alone about >>every two weeks and you would have found it if you'd >>searched >>google. >> >>My first guess would be that your reverse DNS broke >>at some point. >>Generally what happens, is that the FTP daemon is >>waiting for an >>RDNS request to return so it has a hostname to put >>in the logs. If >>the RDNS is broken, it waits until timeout (30 sec >>is the norm I >>believe) before logging you in. >> >>Easy way to find out if this is the problem is the >>host command. >>host 55.55.55.55 >>(substitute your IP address for 55.55.55.55) >>If you don't get a hostname, this is likely to be >>the problem. > > Apologies, I was being lazy, you are right I had > better do some searching. > > I am not running DNS (it is just a little network I > use to develop on, and I ftp the IP address to move SW > about) it is strange as the other machines work just > fine. This one has a problem. You really don't have much choice, as many programs use DNS without even you knowing it. Despite the size of your network, you're probably best off to have a working local DNS server to prevent problems before they occur. -- Bill Moran Potential Technologies http://www.potentialtech.com
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