- Applications like ssh and telnet use the
AF_UNSPECand this function invokes both AAAA (IPv6) and A (IPv4) lookups one after the other. This can delay the connection time when DNS servers block or don't handle IPV6 correctly.
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
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