Ucspi tcp 0.88 a_record patch

You can download the updated patch here:. The tcpserver limits patch , by Matija Nalis, gives tcpserver the ability to reject connections when the server's load average is above a certain number, when more than a certain number of connections are received from the same IP address, or when more than a certain number of connections are received from machines in the same class-C block i. If you want tcpserver to send a message to the client before dropping their connection, you can configure this by setting a DIEMSG environment variable.

The patch I was using, dated , does work as advertised, and has saved my own server and several of my clients' servers from being overloaded by over-zealous attackers i.

However, I did notice a few minor cosmetic issues which I thought needed to be fixed, so I updated the patch. My updates are:. This makes it easy to debug- the error message tells you which environment variable caused the connection to be rejected. This doesn't match the environment variable, which "feels funny" to me.

I told you it was a minor cosmetic issue. The older patch only has a provision for a single DIEMSG variable, whose value is sent to a client whose connection is being rejected, regardless of which of the three limits the client triggered. I thought it would be nice to be able to set one message which says something like "Server too busy, try again later" and another message which says "Too many connections from your IP address".

However, to avoid breaking older scripts, if one of these new variables is not set, the DIEMSG value will be used instead. The original author's web page has a link where you can download the previous versions of the patch.

As of the time I'm writing this the most recent version of his patch is dated , and is what I used as the starting point for my own changes. Your fully qualified host name is servidor. Now qmail will refuse to accept SMTP messages except to servidor. Make sure to change rcpthosts if you add hosts to locals or virtualdomains! Cambiamos el buzon po Maildir. Using splogger to send the log through syslog. La comentaremos de momento por que de momento no usaremos soporte del antivirus y el antispan.

Autentificacion de usuarios smtp contra vpopmail y con uso de rbl. Autentificacion de usuarios smtp contra sistema. Sin autentificacion smtp. El sistema tiene por defecto este fichero que apunta al serv de correo por defecto. Descargamos y descomprimimos el paquete tar vxfz netqmail