21Linux
Linux – view dns cache contents
Every visit to a site such as google.com starts with resolving the domain name or FQDN to an IP address. And this resolution is done by a dns service. The domain nam
1 min read↗
AUTHOR ARCHIVE
Articles by daniel.
Practical knowledge, one discovery at a time.
171 ARTICLES
22Linux
Linux – flush dns with systemd
systemd-resolve is a CLI tool for resolving domain names, IPv4 and IPv6 addresses, DNS records and services.
1 min read↗
23Linux
Get HTTP headers
Most users are interested in the content they receive when they visit a web site. There is an extra information web clients and servers exchange - HTTP headers. HTTP
5 min read↗
24Linux
Linux – how to delete files with dash or double dash
In Linux, trying to delete a file its name starts with dash('-') or double dashes('--') will fails, as dash or '-' is interpreted as an option by the rm and most lin
1 min read↗
Terraform – show logging
By default, a terraform plan or apply run only shows the resources to create, update or delete. It doesn't give much detail on the activity terraform is doing behind
2 min read↗
26Linux
Linux – how to create a file
In Unix, everything is a file. In this particular case though we will be demonstrating how to create a text file. Of course, these are some of the many ways of creat
2 min read↗
27Linux
Exclude files from Dockerfile
TL;DR - use .dockerignore file, Docker's equivalent of .gitignore for git
2 min read↗
28Linux
nslookup query a specific name server
By default, nslookup in Linux will use the name servers configured in /etc/resolv.conf. To check against a specific dns server, add the dns server IP address or name
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29Linux
Linux – Cheat sheet
If you are looking for a Linux and programming cheat sheet, please checkhttps://github.com/chubin/cheat.sh
5 min read↗
30Linux
Linux – curl show request and response times
curl is a tool to interact with a server for transferring data. Although it supports various protocols, it is most commonly used with HTTP/S. It is sort of a browser
3 min read↗