mirror of
https://gitea.blesmrt.net/mikaela/shell-things.git
synced 2025-10-31 01:17:20 +01:00
856085bd74
...Previously they were no without explanation, but it never hurts to explicitly have comments on not doing that, I didn't quickly find anything nice for ForwardAgent, but I remember the Matrix.org people somehow avoiding hearing it and ForwardX11 first result was that StackExchange.
61 lines
2.1 KiB
Plaintext
61 lines
2.1 KiB
Plaintext
# This works as a /etc/ssh/ssh_config or ~/.ssh/config like how I keep
|
|
# using it. Higher option takes priority (keep `Host *` bottom)
|
|
|
|
# User specific configs
|
|
Include ~/.ssh/config.d/*.conf
|
|
# Debian includes this
|
|
Include /etc/ssh/ssh_config.d/*.conf
|
|
|
|
Host *
|
|
# Path for the control socket.
|
|
ControlPath ~/.ssh/sockets/socket-%r@%h:%p
|
|
# Multiple sessions over single connection
|
|
ControlMaster yes
|
|
# Keep connection open in the background even after connection has been
|
|
# closed.
|
|
ControlPersist yes
|
|
|
|
# SSH Agent forwarding is behind a lot of security breaches, never do it
|
|
# Most recently https://github.com/matrix-org/matrix.org/issues/371
|
|
ForwardAgent no
|
|
# Never do that either https://security.stackexchange.com/a/14817/234532
|
|
ForwardX11 no
|
|
|
|
# Debian sets this as yes, upstream no. TODO: What is it?
|
|
#GSSAPIAuthentication yes
|
|
|
|
# Ensure KnownHosts are unreadable if leaked.
|
|
HashKnownHosts yes
|
|
|
|
LogLevel VERBOSE
|
|
Protocol 2
|
|
|
|
# Always try public key authentication.
|
|
PubkeyAuthentication yes
|
|
|
|
# Send needed environment variables. I don't like setting wildcards
|
|
# and LC_ALL is disabled on purpouse.
|
|
SendEnv EDITOR LANG LANGUAGE LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT LC_IDENTIFICATION TERM TZ
|
|
|
|
# If the server doesn't reply in three "pings", connection is dead.
|
|
# Defaults to 3 anyway, but I add it here for clearity and
|
|
# in case it decides to change in the future.
|
|
ServerAliveCountMax 3
|
|
|
|
# "ping" the server every minute.
|
|
ServerAliveInterval 60
|
|
|
|
# OpenSSH 6.8+ - ask all host keys from servers.
|
|
# I trust the server admins and ways to identify the keys (DNSSEC,
|
|
# manual).
|
|
UpdateHostKeys yes
|
|
|
|
# Workaround CVE-2016-0777 & CVE-0778 on OpenSSH < 7.1p2
|
|
UseRoaming no
|
|
|
|
# Verify SSHFP records. If this is yes, the question is skipped when
|
|
# DNSSEC is used, but apparently only "ask" and "no" write known_hosts
|
|
# However with "ask" you won't be told whether the zone is signed, so
|
|
# I consider "yes" to be the least evil.
|
|
VerifyHostKeyDNS yes
|