お問い合わせ

Use `host` to get more information about domains

2020年10月13日

You might be using dig to find out A/CNAME/MX etc records of a domain from DNS servers. But if you just want to get a quick overview, use host:

$ host oozou.com
oozou.com has address 52.89.55.136
oozou.com has address 35.165.206.160
oozou.com has address 34.212.209.65
oozou.com mail is handled by 1 aspmx.l.google.com.
oozou.com mail is handled by 5 alt1.aspmx.l.google.com.
oozou.com mail is handled by 5 alt2.aspmx.l.google.com.
oozou.com mail is handled by 10 aspmx2.googlemail.com.
oozou.com mail is handled by 10 aspmx3.googlemail.com.

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Run incognito/private commands for Bash and Zsh

Simply put a space before the command and it won't be saved to ~/.bash\_history. E.g. qrencode -o out.png "Some secret text"

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Upgrade postgres database with homebrew

To upgrade postgres you can run

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Amazon AWS S3 CLI copy with set perms

Open term (or equivalent) and paste the following:

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