For nslookup command, it has nslookup somewhere.com some.dns.server.
However, it seems that golang dnsclient only load config from /etc/resolv.conf
code here: https://golang.org/src/net/dnsclient_unix.go#L225
Does the golang standard library provide something like
func LookupTXT(name string, dnsServer string) (txt []string, err error) ?
requirement:
1. Don't change the default /etc/resolv.conf.
分享 The net.Lookup* functions provide access to the local resolver. While many requests will be answered with information from a DNS server, this is not always the case.
For instance, LookupHost may return a name from the /etc/hosts file. Or it might use mDNS to resolve a .local name.
If you want to talk to an arbitrary DNS server rather than the local resolver, then you should use a general purpose DNS client library. As suggested in the comments, https://github.com/miekg/dns might fit your needs.
分享
