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Home Archives for SELinux
SELinux security contexts: correcting SELinux labels on a file system

Filipe Martins 2022-03-21 2 Comments

SELinux security contexts: correcting SELinux labels on a file system

SELinux can be such a nuisance. In particular, if you have a newly created file system, you will need to add labels to it, also known as SELinux security contexts.

[Read more…]

Filed Under: Linux, NGINX, SELinux, Uncategorized Tagged With: cyber security, SELinux

Set up logrotate for Postfix

Cloud Insidr 2020-12-06 Leave a Comment

Set up logrotate for Postfix

Finding errors in a postfix log file is tedious work. The job gets even more complicated if you have to dig through old postfix log files which might no longer be relevant. logrotate comes to the rescue, but only if you configure it correctly.  Here is how you can do it on Fedora.

[Read more…]

Filed Under: Uncategorized Tagged With: log, logs, SELinux

SELinux tips, tricks, hacks and gotchas

Cloud Insidr 2019-07-30 4 Comments

SELinux tips, tricks, hacks and gotchas

Most of us have a love-hate relationship with SELinux.

[Read more…]

Filed Under: administration and orchestration Tagged With: SELinux, time stamp

How to set up remote access via SFTP to a web server root directory on RHEL/CentOS/Fedora using key pairs

Cloud Insidr 2016-11-27 2 Comments

How to set up remote access via SFTP to a web server root directory on RHEL/CentOS/Fedora using key pairs

Your users want to access a web server instance as a staging or production environment for DevOps… They want access to the web server document root of the sites they manage. Your job is to maintain the integrity of the whole system in terms of cyber security.

If you happen to be running a web server on Linux—for example in EC2 on Amazon AWS—and need to provide site owners remote access in a secure and responsible manner, here is how to do it.

[Read more…]

Filed Under: administration and orchestration, cybersecurity and cyber warfare, encryption, Linux, NGINX, SELinux, web servers in the cloud Tagged With: DevOps, Dreamweaver, Linux, NGINX, SELinux, SFTP

How to Build a SELinux Module for MariaDB

Cloud Insidr 2016-07-24 Leave a Comment

How to Build a SELinux Module for MariaDB

When updating MariaDB, the popular successor to MySQL, you may, once upon a time, hit a roadblock which you won’t be able to track down in the error log. Even though web visitors get to see the plain text complaint “Can’t connect to the database”, the MariaDB server will be running just fine. Silent errors should be reason enough to suspect SELinux, the oftentimes dreaded and despised but equally popular Security-Enhanced Linux kernel module.

[Read more…]

Filed Under: administration and orchestration, cloud, edge and everything in between, cybersecurity and cyber warfare, databases, Linux, SELinux Tagged With: MariaDB, SELinux

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