How to solve the failure of reading the directory list by pureftp

Recently, when we used pureftp, we encountered a problem where the file directory could not be read or the reading speed was slow. At the same time, we configured iptables firewall rules on the server, which caused the problem mainly.

The solution is as follows:

1. First check whether ports 20 and 21 are enabled. If not, enable them.

2. StopIptables: ServiceIptablesStop, connect again, and read the list successfully.

3. ModifyIptables-config configuration file:

Open: Vim/etc/sysconfig/iptables-config

SetIptables_modulesChanged to iptables_modules = "ip_conntrack_netbios_ns ip_conntrack_ftp ip_nat_ftp"

Save the file.

4. Start iptables:ServiceIptables start

Solve the problem!

Reference: http://www.ttlsa.com/linux/prueftp-read-list-faild/

Http://www.ttlsa.com/linux/ip_conntrack-table-full-dropping-packet-solution/