https://github.com/takuya/gmail-dns-a-record
collection of gmail dns record (smtp/imap)
https://github.com/takuya/gmail-dns-a-record
Last synced: 11 months ago
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collection of gmail dns record (smtp/imap)
- Host: GitHub
- URL: https://github.com/takuya/gmail-dns-a-record
- Owner: takuya
- Created: 2024-09-17T03:49:49.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2025-05-18T02:27:00.000Z (about 1 year ago)
- Last Synced: 2025-05-18T03:33:31.663Z (about 1 year ago)
- Language: Shell
- Size: 14.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
## DNS A Record Collection
A-record in gmail.com is round-robin record.
To check connection in Firewall, we need IP addr.
## example
```shell
bash Collect_DNS_A_RECORD.sh imap.gmail.com 100
```
This willrun command 100 times with 10 sec interval.
```shell
dig @ns1.google.com "${DOMAIN_NAME}" +short
```
Results will appear in text file named `${DOMAIN_NAME}.txt`
## restrictions
Search NS of domain name is complex task .
so, I skip NS search,and just use the `@ns1.google.com` in every dns query.