Friday, 5 April 2013

Sender Policy Framework example

In BIND zone configuration file
IN TXT "v=spf1 ip4:1.1.1.1 ip4:2.2.2.2 -all"
where IP addresses are the addresses of our mail server
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Ping does not work

Today I would like to discuss a banal situation: host A is directly connected to host B, ping from host A to host B does not work. What are...