Articles

  • Securing SSH Server

    Securing SSH

    Introduction

    SSH(Secure Shell) provides a secure way of logging into a remote server. On many relases, the ssh service is ready to use without configuration. But it use a general settings for most circumstances.

    This article introduces some useful tips to securing a ssh service against attacks.

  • System Administration - FreeBSD

    FreeBSD

    Introduction

    FreeBSD is a high performance operating system that is suitable for a variety of server roles. This article will cover some common system administration tasks with a FreeBSD server.

  • NFS server

    Introduction

    NFS(Network File System) is a distributed filesystem protocol used to provides remote directory access on a server. This helps leveraging storage space in a different location and to write to the same space from multiple clients.

    In this article, we will show how to configure NFS mounts on openSUSE. And the process would keep alike between different releases, such as Ubuntu, RHEL, CentOS, etc.

  • Network Settings

    Introduction

    A basic understanding of networking is important for system admin. Not only is it essential for getting your services online and running smoothly, it also give you the insight to diagnose problems.

    This article will privides an overview of the common network related operations.

    Network Connection

  • NIC eno16777736 problem fix

    Introduction

    NIC under Linux is sometimes mis-named as eno16777736. This article describes why this happend and how to fix it with either udev or ifcfg-conn network configuration scripts.

  • MySQL Primer - Performance

    MySQL Performance Balance

    Introduction

    This article will discus MySQL server performance tuning tips and tricks.

    This article is intend for

    • Application Designer/Developer
    • Database/System Administrator
  • Container

    Introduction

    Container related tech stuff

  • System Administration - macOS

    Introduction

    This article describes system administration tasks focused on macOS.

  • SELinux

    Introduction

    Security-Enhanced Linux (SELinux) is a Linux kernel security module that provides a mechanism for supporting access control security policies, including United States Department of Defense–style mandatory access controls (MAC).

    This article will introduce some selinux internals as well as some useful examples.

  • Sharepoint performance issues

    Introduction

    This article describes various performance-related issues may occured on your sharepoint farm.