nslookup: return only IP address - Unix & Linux Stack Exchange
2019年4月20日 · My research indicated nslookup was never really intended for scripted use: use dig instead, which with the +short option produces machine-readable output according to the query parameters. dig +s...
script / command to get IPs from list of hostnames and combine …
The awk script detects the CNAME entries for host name aliases and saves a comma-separated list of aliases for each real hostname in the cn array, and does a similar operation to save the IP addresses in the ip array for each hostname. The END block goes through the hostnames in the ip array and checks to see whether it has any aliases or not ...
IP Address returned by nslookup - Unix & Linux Stack Exchange
2019年12月8日 · Or using nslookup, but with only 1 run for 2 queries: As nslookup could run in interactive mode, and so may answer multiple queries, there is a function using 1 fork to nslookup for asking as many queries needed for listing all ip address for one domain:
How can I resolve a hostname to an IP address in a Bash script?
2015年12月13日 · Chris Down and Heinzi briefly discussed the case where the hostname resolves to more than one IP addresses. In this case (and others below), basic scripting under the assumption that a hostname directly resolves to a single IP address may break. Below, an example with a hostname resolving to more than a single IP address:
nslookup - Look Up IPs From Text File, Generate Another Text File …
2019年6月13日 · For IPv6 addresses we grep for the IP address after has AAAA address. Example: $ nslookup -type=AAAA 1.gravatar.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: 1.gravatar.com has AAAA address 2a04:fa87:fffe::c000:4902 Authoritative answers can be found from: If both IPv4 and IPv6 fail, the output is NXDOMAIN domain …
Make nslookup use specific interface - Unix & Linux Stack Exchange
2015年12月14日 · Move interface eth1 into bear namespace sudo ip link set eth1 netns bear; Run nslookup in bear namespace sudo ip netns exec bear nslookup google.com; If you can't move eth1 into an isolated namespace, you might still be able to create a veth pair, and setup proper forwarding routes or bridge, then move one of the veth endpoint into isolated ...
Why does nslookup fail for DNS records set to a private address?
On some networks I'm able to use nslookup to resolve a domain name that is pointed to a private ip address: @work> nslookup my192.ddns.net Server: 10.1.2.3 Address: 10.1.2.3#53 Non-authoritative answer: Name: my192.ddns.net Address: 192.168.20.20 However, on my home network this same query fails:
Need to print the IP as list in bash script while resolving DNS
2022年5月30日 · I'm writing the below bash script for terraform external data provider # !/bin/bash echo {\"ip\";:\"`nslookup nlb-private-1-6ec90b26d1c9e906.elb.ap-south-1 ...
shell script - need to pick one ip from the nslookup output - Unix ...
2021年5月12日 · Pipe nslookup's output to grep with the -A1 parameter (returns the line matched plus one); Pipe this output to tail -n1 to get only the last line; "sed" your way to drop the "Address:" part and get only the IP. Example: $ nslookup google.com | grep -A1 Name | tail -n1 Address: 2800:3f0:4004:805::200e
how to extract just the IP address from a DNS query
2011年10月11日 · On Alpine Linux, I'd like to know how to extract just the IP address from a DNS / dig query. The query I'm running looks like this: lab-1:/var/# dig +answer smtp.mydomain.net +short smtp.ggs.mydomain.net 10.11.11.11 I'd like to be able to get just the IP address returned. I'm currently playing around with the bash pipe and the awk command.