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Category Archives: Technical

VPOP3 v6.3 – GeoIP access restrictions

One of the new features in VPOP3 v6.3 was the support for ‘GeoIP’ in the Access Restrictions settings. This lets you specify that only IP addresses from certain countries can access VPOP3 services. Many people use this type of restriction to prevent access from countries commonly used by attackers. In fact, the VPOP3 GeoIP facility […]

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PostgreSQL replication and Bucardo

PostgreSQL streaming replication¬†in PostgreSQL 9.0 and later is excellent if it is suitable, and it is relatively easy to set up, with several walkthroughs on the Internet. The main limitation of the streaming replication is that all the servers which are replicating have to be pretty much identical. They have to be: Same major version […]

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