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September 25, 2020 10:39
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Get external IP from commandline by querying some DNS servers
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| # Faster with dig | |
| dig -4 +short myip.opendns.com @resolver1.opendns.com # -4 needed to force ipv4 connectivity as resolver1.opendns.com doesn't return any result for this over ipv6 | |
| dig -4 TXT +short o-o.myaddr.l.google.com @ns1.google.com | tr -d '"' # IPv4 | |
| dig -6 TXT +short o-o.myaddr.l.google.com @ns1.google.com | tr -d '"' # IPv6 | |
| # Slower with curl | |
| curl -4 https://diagnostic.opendns.com/myip | |
| curl -6 https://diagnostic.opendns.com/myip | |
| curl -4 https://icanhazip.com | |
| curl -6 https://icanhazip.com |
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