Hi Folks, I'm trying to set up the ftp for the local galaxy instance. I got the regular ftp working, but not the sftp. After a few hours attempts, I'm wondering what I'm missing. Here is the related info: 1. Configure the build install_user=bioinfoadmin install_group=bioinfoadmin ./configure --prefix=/media/libraryfiles/proftpd --enable-openssl --with-modules=mod_sql:mod_sql_postgres:mod_sql_passwd --with-modules=mod_sftp:mod_tls make make install 2. Start the server sudo sbin/proftpd --config /media/libraryfiles/proftpd/etc/proftpd.conf -n -d 10 I notice that even though I start it using sudo, the real user that is running proftpd is 'nobody'. 3. Config file snippet, I inserted the following piece to the original config file, Add 'VirtualHost' or no doesn't change anything in result <IfModule mod_sftp.c> SFTPEngine on Port 2222 SFTPLog /var/log/proftpd/sftp.log AuthOrder mod_auth_unix.c mod_sql.c # Configure both the RSA and DSA host keys, using the same host key # files that OpenSSH uses. SFTPHostKey /etc/ssh/ssh_host_rsa_key SFTPHostKey /etc/ssh/ssh_host_dsa_key #SFTPAuthMethods publickey SFTPAuthMethods password # Enable compression SFTPCompression delayed </IfModule> Now when I start the server, and then when I try to test the login, I got this: $ sftp -P 2222 localhost packet_write_wait: Connection to 127.0.0.1 port 2222: Broken pipe Couldn't read packet: Connection reset by peer Accordingly, I got the following segfault in log: 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65: ROOT PRIVS at main.c:1227 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65: RELINQUISH PRIVS at main.c:1231 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65: no matching vhost found for 127.0.0.1#2222, using 'ProFTPD Default Installation' listening on wildcard address 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at main.c:1034 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): SETUP PRIVS at main.c:1039 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): session requested from client in unknown class 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): performing module session initializations 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): mod_cap/1.1: adding CAP_SETUID and CAP_SETGID capabilities 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at mod_sftp.c:1674 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at mod_sftp.c:1677 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at keys.c:2001 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at keys.c:2008 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at keys.c:703 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at keys.c:710 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at keys.c:703 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at keys.c:710 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at keys.c:2001 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at keys.c:2008 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): mod_sql/4.3: defaulting to 'postgres' backend 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): mod_ident/1.0: ident lookup disabled 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at mod_delay.c:1756 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at mod_delay.c:1759 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ROOT PRIVS at mod_auth.c:140 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): opening scoreboard '/media/libraryfiles/proftpd/var/proftpd.scoreboard' 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): RELINQUISH PRIVS at mod_auth.c:142 2017-03-22 00:51:14,786 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): AuthOrder in effect, resetting auth module order 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): connected - local : 127.0.0.1:2222 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): connected - remote : 127.0.0.1:58014 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): SSH2 session opened. 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): dispatching LOG_CMD command 'KEXINIT' to mod_sql 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): dispatching LOG_CMD command 'KEXINIT' to mod_log 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): dispatching LOG_CMD command 'ECDH_INIT' to mod_sql 2017-03-22 00:51:14,787 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): dispatching LOG_CMD command 'ECDH_INIT' to mod_log 2017-03-22 00:51:14,789 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ProFTPD terminating (signal 11) 2017-03-22 00:51:14,789 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): ProFTPD terminating (signal 11) 2017-03-22 00:51:14,789 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): mod_sftp/0.9.9: scrubbing 2 passphrases from memory 2017-03-22 00:51:14,789 cal-hsl-65 proftpd[56922] cal-hsl-65 (localhost[127.0.0.1]): SSH2 session closed. Seems that it is connected in the middle... And the /var/log/proftpd/sftp.log shows things like(many identical snippets, I just picked one randomly): 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: sent server version 'SSH-2.0-mod_sftp/0.9.9' 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: received client version 'SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.1' 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: handling connection from SSH2 client 'OpenSSH_7.2p2 Ubuntu-4ubuntu2.1' 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session key exchange: ecdh-sha2-nistp256 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session server hostkey: ssh-rsa 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session client-to-server encryption: aes128-ctr 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session server-to-client encryption: aes128-ctr 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session client-to-server MAC: umac-64@openssh.com 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session server-to-client MAC: umac-64@openssh.com 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session client-to-server compression: none 2017-03-22 01:16:06,753 mod_sftp/0.9.9[58288]: + Session server-to-client compression: none The version of proftpd is 1.3.5d on ubuntu 16.04.2. Not sure if anyone has seen this before. Any input will be greatly appreciated. Thanks, Rui