Public bug reported:
Binary package hint: vsftpd
on our server i noticed, that randomly, vsftpd wasn't running. i thought it is
not being started correctly on boot.
but then i noticed, that after restarting it, and it was working well, then
when our internet connection dropped. and during this and after, vsftp daemon
wasn't running anymore (locally).
then i tested it and as it turned out, when there is no active internet
connection, the vsftp daemon quits pretty soon after it's being started.
i configured it to handle passive mode transfers too (even if i prefer active
mode), and i'm reading my wan side ip from a dyndns account. i suspect this may
have something to do with this unexpected quitting of the daemon. if it can not
reach the dyndns domain, it somehow quits or crashes. however, it shouldn't
have to. this ftp server is mainly for internal use, it should keep working
locall even if there's no active internet connection.
i have reproduced this as follows:
1, /etc/init.d/vsftpd start
2, ps -ef | grep ftp: vsftpd was running
3, unplug the modem cable from the router (btw, the local network is on a
switch, and the switch is on the router)
4, ps -ef | grep ftp: vsftpd wasn't running anymore
5, /etc/init.d/vsftpd start
6, ps -ef | grep ftp: vsftpd was running again
7, wait a few seconds
8, ps -ef | grep ftp: vsftpd was not running
9, replug the modem cable to the router
10, /etc/init.d/vsftpd start
11, ps -ef | grep ftp: vsftpd was running again
there is no log message in /var/log/syslog, /var/log/daemon.log,
/var/log/messages, /var/log/vsftp/*, nowehre at all.
i am on ubuntu 7.04, 32 bit generic kernel. vsftpd is installed from the
default repository using synaptic.
/etc/vsftpd.conf:
listen=YES
#listen_ipv6=YES
anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=002
anon_upload_enable=NO
#anon_mkdir_write_enable=YES
dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
#chown_uploads=YES
#chown_username=whoever
#xferlog_file=/var/log/vsftpd.log
#xferlog_std_format=YES
idle_session_timeout=600
data_connection_timeout=120
#nopriv_user=ftpsecure
#async_abor_enable=YES
#ascii_upload_enable=YES
ascii_download_enable=YES
ftpd_banner=Welcome to .... FTP service.
#deny_email_enable=YES
#banned_email_file=/etc/vsftpd.banned_emails
chroot_local_user=YES
chroot_list_enable=YES
chroot_list_file=/etc/vsftpd.chroot_list
#ls_recurse_enable=YES
secure_chroot_dir=/var/run/vsftpd
pam_service_name=vsftpd
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
userlist_enable=YES
userlist_deny=NO
pasv_enable=YES
pasv_promiscuous=YES
pasv_min_port=25025
pasv_max_port=25099
pasv_addr_resolve=YES
pasv_address=XXXXXX.XXXXXX.org (<- this is a dyndns domain)
max_per_ip=10
hide_ids=YES
use_localtime=YES
max_login_fails=3
delay_failed_login=10
** Affects: vsftpd (Ubuntu)
Importance: Undecided
Status: New
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vsftpd quits when there's no working internet connection
https://bugs.launchpad.net/bugs/277114
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