Should try to explicitly IPAddress.TryParse before calling Dns.GetHostEntry
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Key: DNET-112
URL: http://tracker.firebirdsql.org/browse/DNET-112
Project: .NET Data provider
Issue Type: Improvement
Components: ADO.NET Provider
Environment: All
Reporter: Dean Harding
Assignee: Carlos Guzman Alvarez
Priority: Minor
I am proposing that we replace any instances of:
IPAddress addr = Dns.GetHostEntry(hostname).AddressList[0];
With the following:
IPAddress addr;
if (!IPAddress.Parse(hostname, out addr))
{
addr = Dns.GetHostEntry(hostname).AddressList[0];
}
The call to Dns.GetHostEntry requires a DNS resolve, which can be costly if
there is no reverse DNS set up for the IP and it has also been known to return
different results to the IP you input.
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