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23 results tagged ssh  ✕   ✕
vaporup/ssh-tools https://github.com/vaporup/ssh-tools
Thu 17 Feb 2022 03:47:20 PM PST archive.org

A collection of wrapper scripts that make it easy to run some of the more obscure ssh features without having to read the manpage every time.

  • ping
  • sshd version check
  • diff a file remotely against a local file
  • remote system facts
  • print hostkeys
  • print local pubkeys
  • information about local SSH certs
  • force password auth

In the AUR.

linux sysadmin ssh scripts cli
coroner/cryptolyzer https://gitlab.com/coroner/cryptolyzer
Wed 02 Feb 2022 02:32:55 PM PST archive.org

CryptoLyzer is a fast and flexible server cryptographic settings analyzer library for Python with an easy-to-use command line interface with both human- and machine-readable output. It works with multiple cryptographic protocols (SSL/TLS, opportunistic TLS, SSH) and
analyzes additional security mechanisms (web security related HTTP response header fields, JA3 tag).

python encryption markdown json tls https ssh settings analysis infosec sysadmin
opsdisk/the_cyber_plumbers_handbook https://github.com/opsdisk/the_cyber_plumbers_handbook
Thu 20 Jan 2022 02:28:07 PM PST archive.org

This repo contains the PDF book The Cyber Plumber's Handbook - The definitive guide to Secure Shell (SSH) tunneling, port redirection, and bending traffic like a boss. The book was first published in October 2018 for purchase, but now I'm providing it for FREE to anyone interested in learning more about the magic of SSH tunnels and port redirection.

Repo contains the PDF for download. CC-BY-NCv4

free download ebook ssh sysadmin tips tricks tunnel
jtesta/ssh-audit https://github.com/jtesta/ssh-audit
Thu 18 Nov 2021 05:46:36 PM PST archive.org

ssh-audit is a tool for ssh server and client configuration auditing. Analyzes client and server configuration, connection negotiation parameters, and cryptographic settings and outputs a security report. Has no dependencies.

python sysadmin cli infosec ssh auditing configuration
support defaulting to SSH remotes · Issue #546 · cli/cli · GitHub https://github.com/cli/cli/issues/546
Thu 03 Dec 2020 05:18:28 PM PST archive.org

Prefer using SSH over HTTP(S) for git.

In your ~/.gitconfig file:

[url "git@github.com:"]
    insteadOf = http://github.com/
    insteadOf = https://github.com/
howto git ssh configuration
On secure-shell security https://sysdogs.com/on-secure-shell-security/
Thu 03 Sep 2020 03:08:33 PM PDT archive.org

Wants to be the "cryptographic right answers" document, but for SSH.

Archived.

Maybe have Glitch monitor it?

/etc/ssh/sshd_config:

Protocol 2
AuthenticationMethods publickey
PasswordAuthentication no
PermitEmptyPasswords no
X11Forwarding no
AllowAgentForwarding no

# The problem with having "MaxAuthTries 2" is, the more keys your
# SSH agent has, the more chances you'll have to get locked out.
# I set it to <my number of SSH keys> +2.
MaxAuthTries 10
MaxSessions 10
HostbasedAuthentication no
IgnoreRhosts yes
PermitRootLogin no

KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256,diffie-hellman-group-exchange-sha256

Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr

MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
ssh configuration howto sysadmin infosec hardening bestpractices servers risk
Eternal Terminal https://eternalterminal.dev/
Mon 13 Apr 2020 01:10:52 PM PDT archive.org

Eternal Terminal (ET) is a remote shell that automatically reconnects without interrupting the session. A layer in between an application and unix TCP sockets that make the sockets robust to TCP disconnects including roaming and connection failure. Implements some of the tmux user experience, even works with the tmux control center (tmux -CC). Buffers bytes written and read so they can be replayed in the event of a disconnection. Starts with SSH to make the initial connection and authentication. After that, it uses its own encrypted network protocol.

Github: https://github.com/MisterTea/EternalTerminal

sysadmin remote shells networking cli tools exocortex ssh
Apache Guacamole™ https://guacamole.apache.org/
Sat 24 Nov 2018 11:22:21 PM PST archive.org

Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH.

We call it clientless because no plugins or client software are required.

Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser.

sysadmin webapps rdp vnc ssh html5
Welcome to ~tilde.club~ http://tilde.club/
Mon 21 May 2018 11:34:44 AM PDT archive.org

The original tilde?

tilde social ssh accounts computers
tilde.town https://tilde.town/
Mon 21 May 2018 11:33:00 AM PDT archive.org

Homepage of one of the tildes out there.

tilde ssh server community free accounts
PuTTY: a free telnet/ssh client http://www.chiark.greenend.org.uk/~sgtatham/putty/
Tue 20 Mar 2018 03:13:00 AM PDT archive.org
foss networking encryption application cryptography free telnet windows security software ssh
Das Bityard: OpenSSH: The Poor Man's SOCKS Proxy http://bityard.blogspot.com/2009/01/make-openssh-socks-proxy.html
Tue 20 Mar 2018 02:06:18 AM PDT archive.org

A good blog post about using SSH's little-known proxy functionality to tunnel traffic back through your home network to prevent eavesdropping. The best thing is, you don't have to set up a proxy on the other end because SSH does it for you.

ssh http tricks openssh socks proxy internet article security howto
[PLUG] ssh: Too many authentication failures *RESOLVED* http://lists.pdxlinux.org/pipermail/plug/2007-August/055740.html
Tue 20 Mar 2018 01:29:48 AM PDT archive.org

Have you ever tried to SSH into one of your boxes, only to get dropped with a "Too many authentication failures" error? Here's how to fix it (it's a server side problem).

fix sshd sysadmin authentication ssh wtf linux bsd failures
FTP over SSH tunnel. http://www.linuxquestions.org/questions/linux-networking-3/ftp-over-ssh-tunnel%3B-ftp-refuses-to-work-558516/
Tue 20 Mar 2018 01:23:39 AM PDT archive.org

How to run FTP over an SSH tunnel to another server. It involves setting up a couple of port forwards and FTP in passive mode.

ftp tunnel passive ssh forwarding ports howto exfiltration
Mosh: the mobile shell http://mosh.mit.edu/
Tue 20 Mar 2018 12:52:39 AM PDT archive.org

A remote login utility that is mobile aware, i.e., your link can drop (say, if you're on a cellphone) and come back up later, and your session will still be running. It's kind of like GNU Screen, actually. Also allows editing of lines prior to sending with the enter key. Adapts to network latency.

shell mobile ssh linux bsd osx software
How To Protect SSH With Two-Factor Authentication | DigitalOcean https://www.digitalocean.com/community/tutorials/how-to-set-up-multi-factor-authentication-for-ssh-on-ubuntu-16-04
Tue 20 Mar 2018 12:23:13 AM PDT archive.org

How to set up an Ubuntu machine to require Google Authenticator to SSH in.

authentication sysadmin 2fa ssh ubuntu howto mfa
Default ssh Usernames For Connecting To EC2 Instances · Alestic.com https://alestic.com/2014/01/ec2-ssh-username/
Tue 20 Mar 2018 12:20:46 AM PDT archive.org

A list of default usernames for Linux AMI's in Amazon's EC2.

  • Amazon Linux - ec2-user
  • Ubuntu - ubuntu, root
  • Debian - admin, root
  • RHEL 6.4 and later - ec2-user
  • RHEL 6.3 and earlier - root
  • Fedora - fedora, ec2-user, root
  • Centos - centos, root
  • SUSE- ec2-user, root
  • BitNami - bitnami
  • TurnKey - root
  • NanoStack - ubuntu
  • FreeBSD - ec2-user
  • OmniOS - root
ami aws devops sysadmin accounts ec2 linux ssh
Two-Factor-Authentication with SSH - Sysconfig's Blog https://sysconfig.org.uk/two-factor-authentication-with-ssh.html
Tue 20 Mar 2018 12:19:47 AM PDT archive.org

Several different ways of configuring SSH on servers to use multiple authentication methods in succession for greater security.

sysadmin 2fa mfa howto ssh security configuration
jquast/x84: A python telnet/ssh server for modern UTF-8 and classic cp437 network virtual terminals. In spirit of classic software such as ami/x, tele https://github.com/jquast/x84
Mon 19 Mar 2018 10:36:56 PM PDT archive.org

An experimental ssh and telnet server daemon written in python, meant for developing things like a BBS, a MUD, or a MOO. Built on top of Miniboa, Blessed, SQLitedict, Paramiko, and web.py. web CURSES enabled. Supports ANSI art.

web daemon python telnet server mud moo ssh bbs
shazow/ssh-chat: Chat over SSH. https://github.com/shazow/ssh-chat
Mon 19 Mar 2018 10:36:43 PM PDT archive.org

A quick and easy chat server written in golang that you access through ssh. It's pretty basic and straightforward, and might make a good easter egg.

golang ssh chat server
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