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This shows you the differences between two versions of the page.
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troubleshooting:application_problems [2010/11/16 13:48] mats |
troubleshooting:application_problems [2010/11/17 09:42] (current) mats |
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| These are the quite tight settings by factory, and they may be changed as the user opens up "holes" in the firewall, typically port numbers that allow applications to be initiated from the inside, and possibly also servers on the LAN to be accessed from the outside. | These are the quite tight settings by factory, and they may be changed as the user opens up "holes" in the firewall, typically port numbers that allow applications to be initiated from the inside, and possibly also servers on the LAN to be accessed from the outside. | ||
| - | It is good policy to stick to the more strict **High** or **AltConf** profiles, adapting these profiles to one's needs and keep the **Low** as a more open profile that can be switched to temporarily when troubleshooting or when trying to run an application that does not work under the **High** restrictions. | + | It is good policy to stick to the more strict **High** or **AltConf** profiles, possibly adapting **AltConf** profile to one's needs. |
| + | One can keep the **Low** as a more open profile that can be switched to temporarily when troubleshooting or when trying to run an application that does not work under the **High** or **AltConf** restrictions. | ||
| Switching between security profiles is quick and easy, using the ''ALT'' frontpanel key. See also [[web_gui:security_page|here]] about the security profiles. | Switching between security profiles is quick and easy, using the ''ALT'' frontpanel key. See also [[web_gui:security_page|here]] about the security profiles. | ||
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| If you have problems running an application or service behind the firewall: | If you have problems running an application or service behind the firewall: | ||
| - | * Check if the Internet Gate supports the application or service that you try to run through the firewall. Click here for a list of supported applications. Alternatively, simply browse to the [[web_gui:security_profile|security profile]] page and check if there is a checkbox that corresponds to the application. | + | * Check if the Internet Gate supports the application or service that you try to run through the firewall. Click [[Supported_services|here]] for a list of supported applications. Alternatively, simply browse to the [[web_gui:security_profile|security profile]] page and check if there is a checkbox that corresponds to the application. |
| * If not in the list of supported applications (nor suitable checkbox/fields found on the security profile page), and the application is started from the inside LAN, there may just be a question of one or more TCP/UDP //[[wp>Port_numbers|port numbers]]// that need to be opened up. If so, you could try the following steps: | * If not in the list of supported applications (nor suitable checkbox/fields found on the security profile page), and the application is started from the inside LAN, there may just be a question of one or more TCP/UDP //[[wp>Port_numbers|port numbers]]// that need to be opened up. If so, you could try the following steps: | ||
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| :?: For some applications that don't have a built-in support in the Internet Gate, none of the above measures might be sufficient. In these cases, an [[web_gui:security_profile#IP redirection|IP redirection]] or an [[web_gui:security_profile#Additional rules|Additional rule]] can be considered. This is generally for the more experienced user. | :?: For some applications that don't have a built-in support in the Internet Gate, none of the above measures might be sufficient. In these cases, an [[web_gui:security_profile#IP redirection|IP redirection]] or an [[web_gui:security_profile#Additional rules|Additional rule]] can be considered. This is generally for the more experienced user. | ||
| - | :!: If you have used the firewall log for experimenting as described above, please remember to shut it off again on the [[web_gui:log_configuration_page|log configuration]] page. | + | :!: If you have used the firewall log for experimenting as described above, please remember to shut it off again on the [[web_gui:log_configuration_page#Firewall Log|log configuration]] page. |
