"pirho" wrote:

> Bernard,
>
> I'm more concerned about the impact of 1000 single IP entries
> and 50 IP range entries.
>
> The restrictions were used as part of the security of the system, when user
> count was near 50. Now the system has expanded, and so has the user base.
> The web server, IIS 5.0, is failing more often now, and the admin folks are
> suggesting that the cause is the number of entries in the IP restriction
> section.
>
> I am looking for any performance impact that anyone knows of when using IP
> restrictions numbering in the 1 - 2 thousand individual entry range.
>
> My personal guess is that IIS is caching these in memory and maybe using 1
> or 2 Mb to store it. And that it should NOT be a performance issue, at least
> not yet. However, the folks who admin our web server are suggesting that we
> implement our OWN IP restriction code, which for obvious reasons I am
> resisting with every last breath I can muster....
>
> Anyone out there have a boat load of IPs added in to restrict or allow
> access? Please tell me IIS version and server specs!!
>
> "Bernard Cheah [MVP]" wrote:
>
> > It would be minor. compare to domain name restriction.
> > i have try 50 before, the dual cpus machine just take it as nothing, can't
> > feel any performance impact.
> >
> > --
> > Regards,
> > Bernard Cheah
> > http://www.iis-resources.com/
> > http://www.iiswebcastseries.com/
> > http://www.msmvps.com/bernard/
> >
> >
> > "pirho" <pirho@discussions.microsoft.com> wrote in message
> > news:76C62613-8165-4B6C-86FE-B5142BD34EC7@microsoft.com...
> > > OK, does anyone know of any performance impact at a large number of IPs?
> > > Or
> > > the performance impact at different numbers of IPs?
> > >
> > > "John Cesta" wrote:
> > >
> > >> On Wed, 14 Sep 2005 07:26:01 -0700, "pirho"
> > >> <pirho@discussions.microsoft.com> wrote:
> > >>
> > >>
> > >> I don't think there are any hard limits. You can use the metabase
> > >> editor to see if they are actually in there. From what I remember they
> > >> are stored there.
> > >>
> > >> John Cesta
> > >>
> > >> The CPU Checker - Monitors your CPU % while you sleep
> > >> LogFileManager - IIS LogFile Management Tool
> > >> WebPageChecker - Helps Maintain Server UpTime
> > >> DomainReportIt PRO - Helps Rebuild IIS
> > >> http://www.serverautomationtools.com
> > >>
> > >> >Hi folks,
> > >> >
> > >> >I'm trying to find out if there are any limits on the number of IPs you
> > >> >can Grant access to, if a web is set as Deny All under the IP security
> > >> >settings.
> > >> >I'm looking for hard limits and performance limits both, on IIS 5 vs IIS
> > >> >6.
> > >> >
> > >> >If anyone can provide me any information, that would be greatly
> > >> >appreciated.
> > >> >
> > >> >Also, can anyone confirm that these IPs are stored in the metabase?
> > >> >
> > >> >Thanks,
> > >> >Bob Housedorf
> > >>
> >
> >