SFTP being blocked by IPTables
Every so often, I don't know what triggers it the FTP user will be presented this through FileZilla log:
Command: PASS ************
Response: 530 Login authentication failed
Error: Critical error
Error: Could not connect to server
I've been redundantly using iptables -F which allow the SFTP to work again for a certain amount of time and then I must do it again.
Linux version 2.6.32-504.3.3.el6.x86_64
WHM 11.46.1 (build 4)
CENTOS 6.6 x86_64
I'm using pureftpd and I require the use of 'require explicit FTP over TLS'.
I believe it has something to do with iptables blocking passive ports.
version: iptables-1.4.7-14.el6.x86_64
It's been a while but I've tried a few times to search the forums and google for a resolution. I modified the /etc/pureftpd file to include:
PassivePortRange 49152 65534
I've also tried to add this port range to iptables. I don't really know much about iptables to troubleshoot this issue. So i've just been using iptables -F. It's starting to get to the point of inconvenience and would like to fix it asap. Any direction would be appreciated.
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Hello :) I suggest using a firewall management tool such as CSF to manage your firewall rules. This should address the issue. CSF Firewall Thank you. 0
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