i3 - locking screen with 2-factor authentication
I'm running i3 window manager and have 2-factor authentication on my system. It appears that i3 and i3lock do NOT support the additional prompt for 2-factor authentication, but merely pipes the password I entered in as the verification code.
That obviously doesn't work, short of modifying my pam configuration and disabling 2-factor authentication (for i3lock), is there a better way that will let me leverage 2-factor authentication for i3lock as well?
i3 2-factor-authentication
asked Mar 24 '17 at 10:18
WalterWalter
5172618
add a comment |
I'm running i3 window manager and have 2-factor authentication on my system. It appears that i3 and i3lock do NOT support the additional prompt for 2-factor authentication, but merely pipes the password I entered in as the verification code.
That obviously doesn't work, short of modifying my pam configuration and disabling 2-factor authentication (for i3lock), is there a better way that will let me leverage 2-factor authentication for i3lock as well?
i3 2-factor-authentication
asked Mar 24 '17 at 10:18
WalterWalter
5172618
add a comment |
I'm running i3 window manager and have 2-factor authentication on my system. It appears that i3 and i3lock do NOT support the additional prompt for 2-factor authentication, but merely pipes the password I entered in as the verification code.
That obviously doesn't work, short of modifying my pam configuration and disabling 2-factor authentication (for i3lock), is there a better way that will let me leverage 2-factor authentication for i3lock as well?
i3 2-factor-authentication
asked Mar 24 '17 at 10:18
WalterWalter
5172618
I'm running i3 window manager and have 2-factor authentication on my system. It appears that i3 and i3lock do NOT support the additional prompt for 2-factor authentication, but merely pipes the password I entered in as the verification code.
That obviously doesn't work, short of modifying my pam configuration and disabling 2-factor authentication (for i3lock), is there a better way that will let me leverage 2-factor authentication for i3lock as well?
i3 2-factor-authentication
i3 2-factor-authentication
asked Mar 24 '17 at 10:18
WalterWalter
5172618
asked Mar 24 '17 at 10:18
WalterWalter
5172618
asked Mar 24 '17 at 10:18
WalterWalter
5172618
asked Mar 24 '17 at 10:18
WalterWalter
5172618
asked Mar 24 '17 at 10:18
WalterWalter
5172618
5172618
add a comment |
add a comment |
1 Answer
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Because i3lock supports PAM, it necessarily supports u2f modules too, though it may not support visual prompts for user input. It certainly works with Yubikey u2f, which merely requires the user to press a physical key on the USB after being prompted by the USB flashing.
Setup Yubikey U2F for i3lock
- Build your pam module (e.g.
pam_u2f.so) and place it in the right spot (e.g./lib/security). If you have a yubikey then follow Yubico's guide. - Create
/etc/pam.d/i3lockif it does not already exist. Here is the default file, which simply requires a password.
#
# PAM configuration file for the i3lock screen locker. By default, it includes
# the 'login' configuration file (see /etc/pam.d/login)
#
auth include login
You now have the following options for authenticating with your Yubikey, though the first one (password fallback) is only single factor authentication.
Yubikey with password fallback
Add the following line before the auth include login line.
auth sufficient pam_u2f.so nouserok cue
Require Yubikey and password
Add the following line after the auth include login line.
auth required pam_u2f.so nouserok cue
Debugging
If you get locked out, login on a virtual terminal (TTY). You can get to one with the ctrl+alt+f2 key combination. You can then kill i3lock with killall i3lock or find more information about what went wrong by looking through the output of journalctl -x.
answered 5 mins ago
Hydrox24Hydrox24
11
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1 Answer
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1 Answer
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active
oldest
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oldest
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active
oldest
votes
Because i3lock supports PAM, it necessarily supports u2f modules too, though it may not support visual prompts for user input. It certainly works with Yubikey u2f, which merely requires the user to press a physical key on the USB after being prompted by the USB flashing.
Setup Yubikey U2F for i3lock
- Build your pam module (e.g.
pam_u2f.so) and place it in the right spot (e.g./lib/security). If you have a yubikey then follow Yubico's guide. - Create
/etc/pam.d/i3lockif it does not already exist. Here is the default file, which simply requires a password.
#
# PAM configuration file for the i3lock screen locker. By default, it includes
# the 'login' configuration file (see /etc/pam.d/login)
#
auth include login
You now have the following options for authenticating with your Yubikey, though the first one (password fallback) is only single factor authentication.
Yubikey with password fallback
Add the following line before the auth include login line.
auth sufficient pam_u2f.so nouserok cue
Require Yubikey and password
Add the following line after the auth include login line.
auth required pam_u2f.so nouserok cue
Debugging
If you get locked out, login on a virtual terminal (TTY). You can get to one with the ctrl+alt+f2 key combination. You can then kill i3lock with killall i3lock or find more information about what went wrong by looking through the output of journalctl -x.
answered 5 mins ago
Hydrox24Hydrox24
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Because i3lock supports PAM, it necessarily supports u2f modules too, though it may not support visual prompts for user input. It certainly works with Yubikey u2f, which merely requires the user to press a physical key on the USB after being prompted by the USB flashing.
Setup Yubikey U2F for i3lock
- Build your pam module (e.g.
pam_u2f.so) and place it in the right spot (e.g./lib/security). If you have a yubikey then follow Yubico's guide. - Create
/etc/pam.d/i3lockif it does not already exist. Here is the default file, which simply requires a password.
#
# PAM configuration file for the i3lock screen locker. By default, it includes
# the 'login' configuration file (see /etc/pam.d/login)
#
auth include login
You now have the following options for authenticating with your Yubikey, though the first one (password fallback) is only single factor authentication.
Yubikey with password fallback
Add the following line before the auth include login line.
auth sufficient pam_u2f.so nouserok cue
Require Yubikey and password
Add the following line after the auth include login line.
auth required pam_u2f.so nouserok cue
Debugging
If you get locked out, login on a virtual terminal (TTY). You can get to one with the ctrl+alt+f2 key combination. You can then kill i3lock with killall i3lock or find more information about what went wrong by looking through the output of journalctl -x.
answered 5 mins ago
Hydrox24Hydrox24
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Because i3lock supports PAM, it necessarily supports u2f modules too, though it may not support visual prompts for user input. It certainly works with Yubikey u2f, which merely requires the user to press a physical key on the USB after being prompted by the USB flashing.
Setup Yubikey U2F for i3lock
- Build your pam module (e.g.
pam_u2f.so) and place it in the right spot (e.g./lib/security). If you have a yubikey then follow Yubico's guide. - Create
/etc/pam.d/i3lockif it does not already exist. Here is the default file, which simply requires a password.
#
# PAM configuration file for the i3lock screen locker. By default, it includes
# the 'login' configuration file (see /etc/pam.d/login)
#
auth include login
You now have the following options for authenticating with your Yubikey, though the first one (password fallback) is only single factor authentication.
Yubikey with password fallback
Add the following line before the auth include login line.
auth sufficient pam_u2f.so nouserok cue
Require Yubikey and password
Add the following line after the auth include login line.
auth required pam_u2f.so nouserok cue
Debugging
If you get locked out, login on a virtual terminal (TTY). You can get to one with the ctrl+alt+f2 key combination. You can then kill i3lock with killall i3lock or find more information about what went wrong by looking through the output of journalctl -x.
answered 5 mins ago
Hydrox24Hydrox24
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Because i3lock supports PAM, it necessarily supports u2f modules too, though it may not support visual prompts for user input. It certainly works with Yubikey u2f, which merely requires the user to press a physical key on the USB after being prompted by the USB flashing.
Setup Yubikey U2F for i3lock
- Build your pam module (e.g.
pam_u2f.so) and place it in the right spot (e.g./lib/security). If you have a yubikey then follow Yubico's guide. - Create
/etc/pam.d/i3lockif it does not already exist. Here is the default file, which simply requires a password.
#
# PAM configuration file for the i3lock screen locker. By default, it includes
# the 'login' configuration file (see /etc/pam.d/login)
#
auth include login
You now have the following options for authenticating with your Yubikey, though the first one (password fallback) is only single factor authentication.
Yubikey with password fallback
Add the following line before the auth include login line.
auth sufficient pam_u2f.so nouserok cue
Require Yubikey and password
Add the following line after the auth include login line.
auth required pam_u2f.so nouserok cue
Debugging
If you get locked out, login on a virtual terminal (TTY). You can get to one with the ctrl+alt+f2 key combination. You can then kill i3lock with killall i3lock or find more information about what went wrong by looking through the output of journalctl -x.
answered 5 mins ago
Hydrox24Hydrox24
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 5 mins ago
Hydrox24Hydrox24
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 5 mins ago
Hydrox24Hydrox24
11
answered 5 mins ago
Hydrox24Hydrox24
11
11
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Hydrox24 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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