Bug created. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=145242 tor, 13.01.2005 kl. 01.03 skrev Alexander Dalloz: > Am Mi, den 12.01.2005 schrieb Charles R. Anderson um 17:03: > > > Passive FTP listens on random local ephemeral ports for data > > connections set up by the 21/tcp control stream. If you are not using > > a stateful firewall with a FTP helper, then you need to allow incoming > > TCP connections to whatever range your FTP server uses for passive FTP > > (defaults to the entire local port range). This is why I have always > > set up my FTP server similar to this (older box using ipchains): > > > > /etc/sysctl.conf: > > net.ipv4.ip_local_port_range = 60000 65535 > > > > /etc/vsftpd.conf: > > pasv_min_port=59000 > > pasv_max_port=59999 > > > > /etc/sysconfig/ipchains: > > -A input -i eth0 -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 21:21 -p 6 -j ACCEPT > > -A input -i eth0 -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 0:58999 -p 6 -l -j DENY > > -A input -i eth0 -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 59000:59999 -p 6 -j ACCEPT > > -A input -i eth0 -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 60000:65535 -p 6 -y -l -j DENY > > It is much better to use ip_conntrack_ftp iptables helper module and the > stateful capabilities of iptables (ESTABLISHED,RELATED) rather than to > "blindly" open a range of high ports. Why using ipchains, which is not > stateful, when having iptables? > Easily be done with the default Fedora Core iptables rules by adding > ip_conntrack_ftp into IPTABLES_MODULES="" in > /etc/sysconfig/iptables-config. > > Alexander >