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This seems like a good question to ask Linode. Why do they provide their own custom kernel? Does it somehow work better with their VPS? If you don't hear anything convincing, then it seems completely reasonable to switch to a stock Debian kernel and let apt-get handle the updates. If they do add value with their kernel, ask them if they can provide it in ...


You should probably enable ip forwarding in your servers. It is usually done by $ sysctl net.ipv4.ip_forward To make the changes permanent you must edit /etc/sysctl.conf and set net.ipv4.ip_forward = 1


smtpd_sasl_application_name (default: smtpd) The application name that the Postfix SMTP server uses for SASL server initialization. This controls the name of the SASL configuration file. The default value is smtpd, corresponding to a SASL configuration file named smtpd.conf. This feature is available in Postfix 2.1 and ...

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