ssh_config

# -----------------------------------------------------------------------------
# Matjaž's dotfiles SSH client configuration file
#
# Copyright (c) 2015-2016, Matjaž Guštin <dev@matjaz.it> matjaz.it
# This source code form is part of the "Matjaž's dotfiles" project and is 
# subject to the terms of the BSD 3-clause license as expressed in the 
# LICENSE.md file found in the top-level directory of this distribution and at
# http://directory.fsf.org/wiki/License:BSD_3Clause
# -----------------------------------------------------------------------------

# Default configuration that any host inherits. Override if needed.
Host *
    # Use protocol v2 only, do not fallback to v1 if v2 is not available.
    Protocol 2

    ### Security ###
    # Protocol v2 ciphers
    # The latest ones are really weak and are kept for compatibility with
    # all hosts that may not have the stronger ones. No spaces after commas!
    Ciphers aes256-ctr,aes256-gcm@openssh.com,aes256-cbc,aes192-ctr,aes192-cbc,aes128-ctr,aes128-gcm@openssh.com,aes128-cbc
    # Try public key first
    PreferredAuthentications publickey,gssapi-with-mic,hostbased,keyboard-interactive,password

    ### Connection ###
    # After <value> seconds of inativity, sends an echo request to the server.
    ServerAliveInterval 30
    # After <value> echo consecutive requests sent, disconnects the session.
    ServerAliveCountMax 20
    # TCP timeout when estabilishing the first connection to the server.
    ConnectTimeout 10
    # Number of times to try the connection if timeouts.
    ConnectionAttempts 3
    Compression no

    ### Local logging ###
    # A command run on the local machine after a succesful login to a server.
    # %u = local user name
    # %l = local host name
    # %r = remote user name
    # %n = host name as provided on the command line
    # %h = remote host name
    # %p = remote port
    # %d = local user's home directory
    PermitLocalCommand yes
    LocalCommand echo "$(date +%%s) %u@%l --> %r@%h:%p" >> %d/.ssh/logins.log