Thank you for your help,
xinetd.conf was the solution. My testsystem is an Debian and there you
will not find the attributes "cps" and "instances" in the conf-file. But
if you use SLES you find a limit of 30 instances.

Erich

Philippe Makowski schrieb:

> Erich Sturm [08-03-25 20.30] :
>
>> Hello,
>>
>> I support a medical software which used firebird 1.5 on linux, mostly
>> SLES 9 or 10. Our DB's partly larger then 2 GB. So we don't switch to
>> the superserver because gbak needs to much time for backup or restore.
>> Now the developer changed/split his programm and with every start of a
>> (windows) client there will be opened two threats (former only one) on
>> the server. In the past I have had no problems with twenty clients or
>> more but now the possibility of logon on database stopped by 14 clients.
>> The next get the message: "DMDef.DB: Connection could not established.
>> Connection rejected by remote interface." In /var/log/messages I
>> couldn't find any hint.
>> I looked a lot in the internet but find not answer if there is any limit
>> of threats on linux or firebird?
>>
>>
> yes check your values in xinetd.conf
> check cps and instances
> cf : http://linuxfocus.org/English/November2000/article175.shtml
>
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