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I'm assuming I can add that line anywhere in the sshd_config file? &nbsp; Is there a command to save my work? &nbsp; Pardon my ignorance, I'm new with Linux.<br />
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Basically, how I'm going into it now is that I'm logging in as Root, then doing a: &nbsp;<br />
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# vim /etc/ssh/sshd_config it will open and ask me if I want to Open, Delete, Edit, etc the file. &nbsp;I choose &quot;E&quot; for Edit, then I went in and added Ciphers aes128-ctr,aes192-ctr,aes2<wbr />56-ctr &nbsp;at the very bottom of the config file, then X'd out of the terminal window, thinking it would save my changes but I'm not sure if it is or not. &nbsp;When I try and go back into the config file it's telling me that it's detected a SWP file of the config file.
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I'm assuming I can add that line anywhere in the sshd_config file?   Is there a command to save my work?   Pardon my ignorance, I'm new with Linux.

Basically, how I'm going into it now is that I'm logging in as Root, then doing a:  

# vim /etc/ssh/sshd_config it will open and ask me if I want to Open, Delete, Edit, etc the file.  I choose "E" for Edit, then I went in and added Ciphers aes128-ctr,aes192-ctr,aes256-ctr  at the very bottom of the config file, then X'd out of the terminal window, thinking it would save my changes but I'm not sure if it is or not.  When I try and go back into the config file it's telling me that it's detected a SWP file of the config file.

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You have to write the file first before closing the Window. <br />
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After making the edit hit escape to get out if edit mode. Then type :wq and hit enter to save.
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You have to write the file first before closing the Window.

After making the edit hit escape to get out if edit mode. Then type :wq and hit enter to save.

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Hello Experts - Curious if someone could instruct me how to disable CBC mode cipher encryption, and enable CTR or GCM cipher mode encryption. &nbsp;Any help or suggestions are greatly appreciated.
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Hello Experts - Curious if someone could instruct me how to disable CBC mode cipher encryption, and enable CTR or GCM cipher mode encryption.  Any help or suggestions are greatly appreciated.

SSH - How to Disable CBC Mode Cipher Encryption and Enable CTR or GCM Cipher MOde Encryption?

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

Telnet is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. SSH was designed as a replacement for Telnet and for unsecured remote shell protocols. The term telnet is also used to refer to the software that implements the client part of the protocol. SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server.

SSH / Telnet Software

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).