Package: proftpd-basic Version: 1.3.5b-4 Severity: normal
-- System Information: Debian Release: 9.5 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-8-amd64 (SMP w/8 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages proftpd-basic depends on: ii adduser 3.115 ii debianutils 4.8.1.1 ii libacl1 2.2.52-3+b1 ii libc6 2.24-11+deb9u3 ii libcap2 1:2.25-1 ii libmemcached11 1.0.18-4.1 ii libmemcachedutil2 1.0.18-4.1 ii libncurses5 6.0+20161126-1+deb9u2 ii libpam-runtime 1.1.8-3.6 ii libpam0g 1.1.8-3.6 ii libpcre3 2:8.39-3 ii libssl1.0.2 1.0.2l-2+deb9u3 ii libtinfo5 6.0+20161126-1+deb9u2 ii libwrap0 7.6.q-26 ii lsb-base 9.20161125 ii netbase 5.4 ii sed 4.4-1 ii ucf 3.0036 ii zlib1g 1:1.2.8.dfsg-5 proftpd-basic recommends no packages. Versions of packages proftpd-basic suggests: pn openbsd-inetd | inet-superserver <none> ii openssl 1.1.0f-3+deb9u2 ii proftpd-doc 1.3.5b-4 pn proftpd-mod-geoip <none> pn proftpd-mod-ldap <none> ii proftpd-mod-mysql 1.3.5b-4 pn proftpd-mod-odbc <none> pn proftpd-mod-pgsql <none> pn proftpd-mod-sqlite <none> -- Configuration Files: /etc/logrotate.d/proftpd-basic changed [not included] -- debconf information: * shared/proftpd/inetd_or_standalone: standalone I tried to set up publickey authentification with proftpd. I added the public key location in my Virtualhost : SFTPAuthorizedUserKeys file:/etc/proftpd/authorized_keys/%u When I tried to connect I had this error : Permission denied (publickey). Couldn't read packet: Connection reset by peer I had this error in SFTP log : 2018-09-21 17:44:14,273 mod_sftp/0.9.9[19024]: sending userauth failure; remaining userauth methods: publickey,password I activated Trace logs Here is the error : 2018-09-21 17:44:11,980 [19024] <ssh2:2>: using SFTPAuthorizedUserKeys '/etc/proftpd/authorized_keys/imps' for public key authentication for user 'imps' 2018-09-21 17:44:11,980 [19024] <ssh2:7>: error opening SFTPAuthorizedUserKeys 'file:/etc/proftpd/authorized_keys/%u': No such file or directory The %u variable is interpreted for finding the name of the key file but not for opening it. I changed the location of the public key file for that : SFTPAuthorizedUserKeys file:~/.sftp/authorized_keys After moving the user public key in his folder .sftp, authentification worked. Could please have a look on this issue ? I prefered to put user key outside home directory. Regards.
