FirewallD is frontend controller for iptables used to implement persistent network traffic rules. It provides command line and graphical interfaces and is available in the repositories of most Linux distributions. Working with FirewallD has two main differences compared to directly controlling iptables:
FirewallD uses zones and services instead of chain and rules. It manages rulesets dynamically, allowing updates without breaking existing sessions and connections. NoteFirewallD is a wrapper for iptables to allow easier management of iptables rules–it is not an iptables replacement....
It is easier to manager AWS S3 buckets and objects from CLI. This tutorial explains the basics of how to manage S3 buckets and its objects using aws s3 cli using the following examples:
For quick reference, here are the commands. For details on how these commands work, read the rest of the tutorial.
# s3 make bucket (create bucket) aws s3 mb s3://tgsbucket --region us-west-2 # s3 remove bucket aws s3 rb s3://tgsbucket aws s3 rb s3://tgsbucket --force # s3 ls commands aws s3 ls aws s3 ls s3://tgsbucket aws s3 ls s3://tgsbucket --recursive aws s3 ls s3://tgsbucket --recursive --human-readable --summarize # s3 cp commands aws s3 cp getdata....
You can create a script in /etc/profile.d/ to make aliases for all users:
Create a file called 00-aliases.sh (or any other fancy name) in /etc/profile.d:
gksu gedit /etc/profile.d/00-aliases.sh Put you aliases in this file. Example:
alias foo='bar --baz' alias baz='foo --bar' Save the file
Restart any open terminals to apply the changes.
How To Create Permanent Aliases In Linux?...
RHEL/CentOS v.s. Ubuntu Differences (Commands and Configuration)
Table of Contents Differences Packages yum vs apt rpm vs dpkg Service OS configuration files Log Differences Note RHEL Ubuntu Support 10years 10years LTS(Long Term Support) Defautl Editor vi nano Access control SELinux AppArmor Apach HTTP Server httpd apache2 Firewall firewalld (CentOS7)iptables (CentOS5, 6) ufw（Uncomplicated FireWall） Packages yum vs apt The apt command is a command for integration of apt-get / apt-cache....
What is Linux? Linux is an open source operating system. Like other operating system (such as Windows) Linux consists of various software components that manage computer hardware resources and enable you to do tasks such as surfing the web or editing a file in a text editor.
Linux is a free and open source software, which means that you can use, copy, study, and change the software in any way. It is distributed with the source code so users can view and modify it....