Contents
Is there a guide to securing the SSH daemon?
A Guide to Securing the SSH Daemon. SSH (Secure Shell) is a network protocol that provides users secure access to a remote system. It provides a strong encrypted data communications channel between two computers over an unsecured network. SSH is the preferred connection method for Linux / UNIX system administrators for operations and maintenance.
How to automate the startup of the SSHD daemon?
To fully automate the startup of the SSHD daemon at IPL time, you must change your startup program to include the STRSBS SSHLIB/SSHSBS command. When the subsystem is started with the previously created subsystem environment and no SSH connection is established, you should see one QP0ZSPWP running (as shown below in Figure 1).
How to set the SSH daemon to listen on a non-Stanard port?
To set the SSH daemon to listen on a non-stanard port uncomment, edit or add the following in sshd_config: I normally do not change the default ports for systems behind a firewall. If your system is open to the internet or other untrusted networks, this is a good standard practice.
How to turn off compression on SSH daemon?
It is widely believed that compression actually slows down the process unless being used over a slow connection (modem, ISDN, etc). If you have to use compression, use the delay feature to ensure the the user is authenticated first before compression starts. To turn off compression uncomment, edit or add the following line to sshd_config:
Which is insecure implementation of the SSH protocol?
SSHv1 ia a known insecure implementation of the SSH protocol. To ensure the integrity of your system, you should configure the SSH daemon to accept only SSHv2 connections. To configure the SSH daemon to only use SSHv2 protocol ensure the following line is in the sshd_config file and not commented out.
Can you connect to a docker Daemon over SSH?
One of the cool feature released with Docker 18.09 is the ability to connect to a docker daemon over ssh. This post would walk you through the steps to connect to a docker daemon running on DigitalOcean.