Hello, > > My understanding is that you have only one key, the traditional rsa key.
This is indeed the case. > I have tried to reproduce your issue with a fake user on my box: it works > here. > Have you tried to start an ssh-agent by hand ? Starting ssh-agent by hand with eval $(ssh-agent) after login works perfectly fine, and I can add my key with ssh-add, and it works. ssh > What is the version of your ssh ? (I am asking because my box is merely a > Jessie > with some Stretch stuff.) I'm using ssh 1:7.2p2-5 > Can you show your /etc/pam.d/common-session and /etc/pam.d/common-auth and > /etc/pam.d/login > configuration files ? ====> common-session: # # /etc/pam.d/common-session - session-related modules common to all services # # This file is included from other service-specific PAM config files, # and should contain a list of modules that define tasks to be performed # at the start and end of sessions of *any* kind (both interactive and # non-interactive). # # As of pam 1.0.1-6, this file is managed by pam-auth-update by default. # To take advantage of this, it is recommended that you configure any # local modules either before or after the default block, and use # pam-auth-update to manage selection of other modules. See # pam-auth-update(8) for details. # here are the per-package modules (the "Primary" block) session [default=1] pam_permit.so # here's the fallback if no module succeeds session requisite pam_deny.so # prime the stack with a positive return value if there isn't one already; # this avoids us returning an error just because nothing sets a success code # since the modules above will each just jump around session required pam_permit.so # and here are more per-package modules (the "Additional" block) session optional pam_krb5.so minimum_uid=1000 session required pam_unix.so session optional pam_winbind.so session optional pam_ssh.so debug session optional pam_tmpdir.so session optional pam_systemd.so session optional pam_ecryptfs.so unwrap session optional pam_ck_connector.so nox11 # end of pam-auth-update config =======> common-auth: # # /etc/pam.d/common-auth - authentication settings common to all services # # This file is included from other service-specific PAM config files, # and should contain a list of the authentication modules that define # the central authentication scheme for use on the system # (e.g., /etc/shadow, LDAP, Kerberos, etc.). The default is to use the # traditional Unix authentication mechanisms. # # As of pam 1.0.1-6, this file is managed by pam-auth-update by default. # To take advantage of this, it is recommended that you configure any # local modules either before or after the default block, and use # pam-auth-update to manage selection of other modules. See # pam-auth-update(8) for details. # here are the per-package modules (the "Primary" block) auth [success=3 default=ignore] pam_krb5.so minimum_uid=1000 auth [success=2 default=ignore] pam_unix.so nullok_secure try_first_pass auth [success=1 default=ignore] pam_winbind.so krb5_auth krb5_ccache_type=FILE cached_login try_first_pass # here's the fallback if no module succeeds auth requisite pam_deny.so # prime the stack with a positive return value if there isn't one already; # this avoids us returning an error just because nothing sets a success code # since the modules above will each just jump around auth required pam_permit.so # and here are more per-package modules (the "Additional" block) auth optional pam_ssh.so use_first_pass debug auth optional pam_ecryptfs.so unwrap auth optional pam_cap.so # end of pam-auth-update config =====> login: # # The PAM configuration file for the Shadow `login' service # # Enforce a minimal delay in case of failure (in microseconds). # (Replaces the `FAIL_DELAY' setting from login.defs) # Note that other modules may require another minimal delay. (for example, # to disable any delay, you should add the nodelay option to pam_unix) auth optional pam_faildelay.so delay=3000000 # Outputs an issue file prior to each login prompt (Replaces the # ISSUE_FILE option from login.defs). Uncomment for use # auth required pam_issue.so issue=/etc/issue # Disallows root logins except on tty's listed in /etc/securetty # (Replaces the `CONSOLE' setting from login.defs) # # With the default control of this module: # [success=ok new_authtok_reqd=ok ignore=ignore user_unknown=bad default=die] # root will not be prompted for a password on insecure lines. # if an invalid username is entered, a password is prompted (but login # will eventually be rejected) # # You can change it to a "requisite" module if you think root may mis-type # her login and should not be prompted for a password in that case. But # this will leave the system as vulnerable to user enumeration attacks. # # You can change it to a "required" module if you think it permits to # guess valid user names of your system (invalid user names are considered # as possibly being root on insecure lines), but root passwords may be # communicated over insecure lines. auth [success=ok new_authtok_reqd=ok ignore=ignore user_unknown=bad default=die] pam_securetty.so # Disallows other than root logins when /etc/nologin exists # (Replaces the `NOLOGINS_FILE' option from login.defs) auth requisite pam_nologin.so # SELinux needs to be the first session rule. This ensures that any # lingering context has been cleared. Without out this it is possible # that a module could execute code in the wrong domain. # When the module is present, "required" would be sufficient (When SELinux # is disabled, this returns success.) session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close # This module parses environment configuration file(s) # and also allows you to use an extended config # file /etc/security/pam_env.conf. # # parsing /etc/environment needs "readenv=1" session required pam_env.so readenv=1 # locale variables are also kept into /etc/default/locale in etch # reading this file *in addition to /etc/environment* does not hurt session required pam_env.so readenv=1 envfile=/etc/default/locale # Standard Un*x authentication. @include common-auth # This allows certain extra groups to be granted to a user # based on things like time of day, tty, service, and user. # Please edit /etc/security/group.conf to fit your needs # (Replaces the `CONSOLE_GROUPS' option in login.defs) auth optional pam_group.so # Uncomment and edit /etc/security/time.conf if you need to set # time restrainst on logins. # (Replaces the `PORTTIME_CHECKS_ENAB' option from login.defs # as well as /etc/porttime) # account requisite pam_time.so # Uncomment and edit /etc/security/access.conf if you need to # set access limits. # (Replaces /etc/login.access file) # account required pam_access.so # Sets up user limits according to /etc/security/limits.conf # (Replaces the use of /etc/limits in old login) session required pam_limits.so # Prints the last login info upon succesful login # (Replaces the `LASTLOG_ENAB' option from login.defs) session optional pam_lastlog.so # Prints the message of the day upon succesful login. # (Replaces the `MOTD_FILE' option in login.defs) session optional pam_exec.so type=open_session stdout /bin/uname -snrvm session optional pam_motd.so # Prints the status of the user's mailbox upon succesful login # (Replaces the `MAIL_CHECK_ENAB' option from login.defs). # # This also defines the MAIL environment variable # However, userdel also needs MAIL_DIR and MAIL_FILE variables # in /etc/login.defs to make sure that removing a user # also removes the user's mail spool file. # See comments in /etc/login.defs session optional pam_mail.so standard # Sets the loginuid process attribute session required pam_loginuid.so # Standard Un*x account and session @include common-account @include common-session @include common-password # SELinux needs to intervene at login time to ensure that the process # starts in the proper default security context. Only sessions which are # intended to run in the user's context should be run after this. session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open # When the module is present, "required" would be sufficient (When SELinux # is disabled, this returns success.) <====== Thanks again for looking into this, -- Giuseppe "Oblomov" Bilotta
