Is it possible to use edns0 on resolver of Red Hat Enterpriase Linux 5?
Issue
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We are using Kerberos for SSH authentication and the SRV records are more than 512 bytes. Without support for EDNS, that means that all requests for SRV records must fall back to TCP, which places a lot of load on our nameservers. We'd like to enable EDNS so that these requests can still go through using UDP packets.
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Is EDNS supported for RHEL 5?
Environment
- Red Hat Enterprise Linux 5
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