I just had trouble uploading an image file to my web space (space supplied by my ISP).
I use Namo WebEditor for creating web pages. The program comes with its own file uploader, which has always worked OK. The first time I tried to upload this particular .gif image file, the uploader said it was unable to do it. Since the Comodo firewall is the latest installation on my computer, I put it down to this. I deleted the entries for WebEditor from the Application Monitor in the firewall and let it re-ask permissions.
The file uploaded OK after that but when I went to view it, Firefox said the file had errors and IE said it couldn’t display the page. The local .gif file on the Desktop displayed OK in the browser. Still suspecting the firewall, I took a chance and turned it off for the short space of time it took to upload the file. I then hastily unplugged the modem until the firewall was up and running again. The file was then viewable on the Internet.
It does appear that something in the firewall stopped the file from uploading properly. Perhaps only a setting but I’m not too familiar with altering default permissions in firewalls (been using ZA Pro), could someone suggest what I should try?
Hi,
When you install CPF on a system, you can see two default Network rules under “Security->Network Monitor” section:
ALLOW IP TO FROM IP [Any] TO IP [Any] WHERE IPPROTO IS ANY
BLOCK IP IN FROM IP [Any] TO IP [Any] WHERE IPPROTO IS ANY
It is due to second rule, if connection is initiated from some other computer to connect to one on which CPF is installed, it will be blocked. This rule protects your system from any online threat.
To resolve your problem, you can either explicitly allow all the IPs which can connect to your system or you can define a trusted zone using “Tasks->Wizards->Add a trusted zone”.
All the allow rules should appear before deny rules, as network rules are read from top to bottom.
Please try and let us know if you still see any issue.
The embarrassment is that the problem seems to have just gone away. Perhaps there was something wrong with the server last night. The way I eventually got the file to upload certainly fooled me into thinking it must be the firewall. It can’t have been though can it?
Anyway, that’ll teach me not to question the firewall.
Thanks for your help. If the problem does recur, I’ll try your advice …either that or wait a few hours (:LGH)