Meta Q1: | What is so special about F*EX? |
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Meta A1: |
See feature list [http://fex.rus.uni-stuttgart.de/features.html] and use cases [http://fex.rus.uni-stuttgart.de/usecases/] |
Meta Q2: | Why not use one of the commercial services like DropLoad, ALLPeers, YouSendIt, etc? |
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Meta A2: |
|
Meta Q3: | Why name "F*EX" and not shortly "FEX"? |
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Meta A3: |
At publication time there was already a program named "FEX" listed on freshmeat.net. |
Meta Q4: | Who is the author? |
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Meta A4: |
The main author is Ulli Horlacher <[email protected]> But there are also a lot of contributors all around the world. |
Meta Q5: | Why a camel as the logo? |
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Meta A5: |
The logo was inspired by the Perl camel, but it is based on a Steiff plush camel, which rides with us on our racing tandem. The logo was drawn by my stoker Beate. [http://fex.rus.uni-stuttgart.de/Vortrag/tosa.html] |
Meta Q6: | What do I need to install a F*EX server? |
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Meta A6: |
A UNIX or Windows server with a DNS entry, smtp for outgoing email and one open and free incoming tcp port. You must have administrative rights (UNIX: root) on this server and a basic understanding of UNIX and networking. |
Meta Q7: | What means DNS and smtp? What is a tcp port? |
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Meta A7: |
Do not install F*EX. It is beyond your horizon. |
Meta Q8: | Does F*EX support IPv6 and SSL/TLS? |
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Meta A8: |
Yes. |
Meta Q9: | Can I run F*EX on Windows? |
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Meta A9: |
On client side all operating systems are supported, even Windows. If you want to run a F*EX server on Windows, then see [http://fex.belwue.de/fexwix.html] |
Meta Q10: | Where can I get the F*EX sources? |
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Meta A10: |
F*EX server for UNIX: [http://fex.belwue.de/fex.html] |
Meta Q11: | I do not want to install a F*EX server of my own, but where can I use it? |
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Meta A11: |
Contact <[email protected]> [http://www.nepustil.net/] for F*EX hosting. |
Meta Q12: | The F*EX server is all in Perl?! Isn't Perl too slow for this job? |
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Meta A12: |
F*EX is able to handle uploads with more than 300 MB/s on an office PC. Try this with an ordinary webserver like Apache! |
Meta Q13: | Which licence does F*EX have? And why? |
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Meta A13: |
Perl Artistic free software with a special anti-military clause: [http://fex.belwue.de/doc/Licence] "I want peace on earth and goodwill towards men" [https://www.youtube.com/watch?v=JHU0HinVhYc] [https://en.wikipedia.org/wiki/Sneakers_%281992_film%29] |
Meta Q14: | Is there a F*EX mailing list? |
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Meta A14: |
[https://listserv.uni-stuttgart.de/mailman/listinfo/fex] |
Meta Q15: | Where can I get commercial support for F*EX? |
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Meta A15: |
Contact <[email protected]> [http://www.nepustil.net/] |
Meta Q16: | How big is F*EX? |
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Meta A16: |
Server: 400 kB, 11000 lines of code Clients: 180 kB, 5500 lines of code Documentation: 130 kB Localizations: 250 kB |
Meta Q17: | Who else is using F*EX? |
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Meta A17: |
For example:
|
Meta Q18: | Is F*EX secure? |
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Meta A18: |
F*EX is written in Perl which does not have common security problems with buffer overruns, segmentation faults, heap and stack corruption. F*EX does not use an extra web server or a (SQL) database, so no typical web attacks are possible. F*EX was analysed by security company revshell.com and labeled as "secure". F*EX comes with source code, so everybody can verify it. |
Meta Q19: | Feature/design XY is missing. |
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Meta A19: | Contact the author <[email protected]> |
Meta Q20: | I have more/other questions than in this document! |
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Meta A20: | Ask the author <[email protected]> |
User Q1: | What is the "auth-ID"? |
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User A1: |
The auth-ID is an internal identification which authentificates the user. It will be first generated by the admin or the automatic registration process and can later be modified by you, the user. Think of some kind of a low security password. |
User Q2: | What is the difference between all these user types (full, sub, group, external, ...)? |
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User A2: |
See [http://fex.rus.uni-stuttgart.de/users.html] |
User Q3: | I have uploaded a HUGE file but misspelled my recipient's address. Now I have got an error bounce email. Must I re-upload the HUGE file? |
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User A3: |
No, it is not necessary. You can redirect the file with "user config & operation control" |
User Q4: | I have uploaded a HUGE file but forgot another recipient. Must I re-upload the HUGE file? |
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User A4: |
No, it is not necessary. You can forward-copy the file with "user config & operation control" |
User Q5: | Can I use an HTTP proxy? |
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User A5: |
Yes, but pay attention: Some HTTP proxies like privoxy delay the upload progress bar! You may want to disable proxying fex.heco-schrauben.de if you run into this problem. |
User Q6: | My recipient has lost the notification email with the download-URL. What can I do? |
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User A6: |
You can resend the notification email via "user config & operation control" |
User Q7: | Why should I use a special F*EX client? |
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User A7: |
When you are using F*EX with your webbrowser, you are limited to its restrictions. With a special F*EX client [http://672335.nrum8baaj.asia/tools.html] you can
|
User Q8: | How can I upload several files at once? |
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User A8: |
Put your files in an archive file (ZIP). Your web browser cannot do that. Or you can use a F*EX client, see [http://672335.nrum8baaj.asia/tools.html] |
User Q9: | I cannot upload files > 2 GB with my web browser!? |
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User A9: |
Many web browsers have bugs in their HTML-FORM implementation. The limit mostly is 2 GB, sometimes 4 GB. Firefox and Google Chrome have no limitation. But remember: No web browser is able to resume an interrupted upload. You need a special F*EX client like fexsend or schwuppdiwupp for resuming, see [http://672335.nrum8baaj.asia/tools.html] |
User Q10: | I need to send a file bigger than my quota allows. What can I do? |
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User A10: |
Simply ask [email protected] to raise your quota. If you want to send a REALLY big file, you also have to tell the recipient's address because his quota also has to be raised. |
User Q11: | Why is the upload status window empty and I cannot see the progress bar? |
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User A11: |
Most probably you are using a (enforced) web proxy, which cannot handle dynamic HTML pages. A workaround is using Google Chrome, which shows the upload status by itself. |
User Q12: | My download was aborted before it was finished. Can I resume the download? |
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User A12: |
F*EX supports resuming at download, but your client also has to support this feature. Firefox e.g. is missing this HTTP feature, you need an other client like opera, wget or fexget. |
User Q13: | My upload was aborted before it was finished. Can I resume the upload? |
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User A13: |
F*EX supports resuming at upload, but your client also has to support it. No web browser has this feature, you need a special F*EX client like fexsend or schwuppdiwupp, see [http://672335.nrum8baaj.asia/tools.html] |
User Q14: | Can I integrate F*EX in my mail program (thunderbird, outlook, etc)? |
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User A14: |
Yes, if your mail admin has set up a "fexmail" smtp relay. [http://fex.belwue.de/usecases/BIGMAIL.html] |
User Q15: | Can I use a download manager/accelerator? |
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User A15: |
Generally, no, because they suck: they are not RFC compliant and produce a LOT of unnecessary server load. But there is one exception: axel [http://axel.alioth.debian.org/] |
User Q16: | Why is there an error "FILE has already been downloaded"? |
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User A16: |
Either you or someone else have already downloaded this file. Now it is gone. Downloads are limited to a specific recipient. One cannot share it. Perhaps the sender has fexed it to a mailing list (which is a bad idea!)? |
User Q17: | Can I fex to a mailing list? |
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User A17: |
Generally: no, because the first download makes the file no more available for others. Contact [email protected], he can allow multiple downloads for specific addresses. |
User Q18: | Sending as a F*EX user is easy, but how to receive files from others, outside? |
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User A18: |
Register them as your subusers, create a F*EX group or a one-time upload key with "user config & operation control" See also [http://fex.belwue.de/usecases/foreign.html] |
User Q19: | What is a F*EX group? |
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User A19: |
F*EX group is similar to a mailing list, but for files: When a member fexes a file to this list, then all other members will receive it. Any full user can create a F*EX group and add or delete members. See "user config & operation control" → "Manage your subusers and groups" |
User Q20: | I am not a user of your site. How can I send a file to a registered user? |
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User A20: |
See question above: you must ask a regular user to register you as his subuser. You will then get a specific upload URL from him. |
User Q21: | Sometimes I can download a file more than once, especially when I repeat it quickly. Is the autodelete feature buggy? |
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User A21: |
The F*EX server has a grace time of 1 minute after first sucessfully download in which the file is still available. This is necessary because of some stupid "download managers" which request the file several times at once. Otherwise they would report an error to the user.
Your fexmaster has set AUTODELETE=DELAY as default, which means that the autodelete cleanup process is called once a day.
Power users (use the source, Luke!) can set a "do not delete after download" flag. |
User Q22: | I have uploaded a file to a list of recipients. Will the file be deleted after the first recipient has dowloaded it? |
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User A22: |
No. Every recipient gets his own copy of the file which is independant from the others. |
User Q23: | The default keep time is too short for me (sender), I need more. How can I set it? |
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User A23: |
Use fexsend, ask [email protected] or read the source code :-) |
User Q24: | The default keep time is too short for me (recipient), I need more. How can I set it? |
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User A24: |
Ask [email protected] to raise your default KEEP value. |
User Q25: | I forgot to download a file. Now it is expired. How can I obtain it nevertheless? |
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User A25: |
An expired file is definitively deleted. Even the admin cannot restore it. You must re-request it from the sender. |
User Q26: | When I try to download a file again, I get the error message: "file has been autodeleted after download". Can you restore it? |
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User A26: |
No. You must re-request it from the sender. |
User Q27: | I have sent a second file with the same name, but the recpient has not received a second notification email. Why? |
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User A27: |
A file with the same name to the same recpient overwrites the first one if it is still there (no download so far). A second notification email of the same file(name) is not suggestive. |
User Q28: | How can I sent a more compact notification email? |
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User A28: |
Let your comment start with "!.!", then the notification email will contain only download-URL, size and comment. |
User Q29: | How can I suppress the automatic notification email? |
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User A29: |
Use "!#!" as comment, then no notification email will be sent. Of course you then have to inform the recipient manually. |
User Q30: | Can I delete a file without downloading? |
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User A30: |
Add "?DELETE" to your download URL. |
User Q31: | Can I get a copy of the notification email? |
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User A31: |
Add "!bcc!" to the comment field on upload. |
User Q32: | Can I get a notification email on download? |
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User A32: |
No. Such a feature is in conflict with German and European privacy laws and will not be implemented. With email you also have no acknowledgement of receipt. |
User Q33: | Can I have encrypted emails? |
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User A33: |
See [http://fex.belwue.de/gpg.html] |
User Q34: | I need ACLs for group access, versioning, a file browser and integration in my local file system. |
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User A34: |
This is beyond the scope of F*EX, which is designed for efficient file transfer only. |
User Q35: | I cannot download files with Internet Explorer, it tells me "Cannot open Internet site". What shall I do? |
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User A35: |
Use Firefox or any other Internet-compatible web browser, that Internet Explorer is not. This is one of the many bugs of Internet Explorer. See also [http://support.microsoft.com/kb/323308] |
User Q36: | I cannot login with Internet Explorer, it tells me "This page can't be displayed". What shall I do? |
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User A36: |
Use Firefox or any other Internet-compatible web browser, that Internet Explorer is not. This is one of the many bugs of Internet Explorer. |
User Q37: | I have recived a "file.7z". How can I extract it on my Mac? |
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User A37: |
For example with "Stuffit Expander": [https://itunes.apple.com/us/app/stuffit-expander/id405580712?mt=12] [http://my.smithmicro.com/stuffit-expander-mac-download.html] |
User Q38: | How can I prevent the fexsend error SSL3_GET_SERVER_CERTIFICATE:certificate verify failed ? |
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User A38: |
Set the environment variable SSLVERIFY=0
Rationale: |
Admin Q1: | I cannot install a web server like fexsrv, because I have no root permissions. Is there a pure-CGI-version of F*EX which runs with an apache web server? |
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Admin A1: |
F*EX is hard bound to fexsrv for several reasons (performance, file size limit, session concept, etc) and cannot be run as CGI under apache. But you might have a look at
which implement a file exchange as pure CGIs, but with a 2 GB file size limit, which F*EX does not have. |
Admin Q2: | I have already a webserver (apache) running. How can I install F*EX in parallel? |
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Admin A2: |
You have to use a different port or ip for F*EX, because you cannot run two services on the same ip:port combination. For example port 88, use "./install -p 88" For another ip you can create a new virtual interface or use a virtual machine. See the documentation of your UNIX. |
Admin Q3: | Ok, I have installed F*EX. What now? |
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Admin A3: |
Become user fex and create some users with fac , example:
Then log in using the web interface: http://YOURFEXSERVER/
... and join the F*EX mailing list! ☺ |
Admin Q4: | What is /var/lib/fex/bin/fac and /var/lib/fex/cgi-bin/fac ? |
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Admin A4: |
fac stands for F*EX Admin Control
|
Admin Q5: | F*EX is not working at all! I cannot connect to it with my web browser! |
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Admin A5: |
Check your routing, ipfilters and firewall setup. Also check if xinetd is running. If it is linked with tcp-wrapper, configure it correctly (hosts.allow). /etc/xinetd.d/fex should not contain a line "only_from"F*EX needs port 80/tcp for HTTP and optionally port 443/tcp for HTTPS. Test the connection with: telnet YOURFEXSERVER 80 |
Admin Q6: | What is the difference between all these user types (full, sub, group, external, ...)? |
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Admin A6: |
See [http://fex.rus.uni-stuttgart.de/users.html] |
Admin Q7: | How can I integrate F*EX in the existing user management at my site? |
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Admin A7: |
F*EX has several authentification modules: local, RADIUS, LDAP, mailman and POP. For the last 4 please contact <[email protected]> |
Admin Q8: | Can I make an alias address for an user? |
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Admin A8: |
F*EX users are defined by a directory in the spool. Therefore execute:
Now the user is known as [email protected] and [email protected] |
Admin Q9: | I want that all my local users can use F*EX. How? |
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Admin A9: |
Let them register themselves with http://YOURFEXSERVER/fur
You have to edit @local_hosts = qw(127.0.0.1 10.10.100.0-10.10.255.255); @local_domains = qw(flupp.org ulm.sub.net);Or you can allow anonymous upload for your LAN users with fex.ph variable @anonymous_upload Example: @anonymous_upload = qw(10.10.100.0-10.10.200.255 129.69.1.11);(Of course you have to use your real local hosts/networks!) |
Admin Q10: | I want that external users can fex to my local users. How? |
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Admin A10: |
Let them register themselves with http://YOURFEXSERVER/fur
You have to edit # your local receiving domains @local_rdomains = qw(flupp.org *.flupp.org);
Or you can manually create a restricted external user with (example):
|
Admin Q11: | How can I change user settings like quota, restrictions or keep time? |
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Admin A11: |
Use /var/lib/fex/bin/fac
|
Admin Q12: | How can I delete or temporarly disable a user? |
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Admin A12: |
Use /var/lib/fex/bin/fac
|
Admin Q13: | I have BIG files already on the fexserver host. Can I upload just a link instead of the whole file? |
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Admin A13: |
Set in fex.ph:
and use:
|
Admin Q14: | I want the Bcc mails to fex (admin user) to be sent to another address. |
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Admin A14: |
Set variable $bcc in /var/lib/fex/lib/fex.ph
|
Admin Q15: | My users want to fex to mailing lists, but after first download the file is no more available!? |
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Admin A15: |
Add the mailing list address to @mailing_list in /var/lib/fex/lib/fex.ph
This allows multiple downloads. |
Admin Q16: | I need more security! How can I enable (https) encryption? |
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Admin A16: |
Read doc/SSL and also look for "fop_auth" in doc/concept (doc is a local directory in your installation or online [http://fex.belwue.de/doc/]) For email encryption see [http://fex.belwue.de/gpg.html] |
Admin Q17: | I need a corporate identity look. How can I configure F*EX in this way? |
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Admin A17: |
|
Admin Q18: | F*EX is too complicated for my tie users. I need a simplified upload form. |
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Admin A18: |
See /var/lib/fex/htdocs/fup_template.html and /var/lib/fex/htdocs/sup.html
or use public upload, see [http://fex.belwue.de/usecases/foreign.html] |
Admin Q19: | F*EX is still too complicated! I need something more simplified. |
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Admin A19: |
Try [http://fex.belwue.de/fstools/woos.html] or use F*EX mail (see next question). |
Admin Q20: | Can I integrate F*EX in my users MUAs (thunderbird, outlook, etc)? |
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Admin A20: |
See [http://fex.belwue.de/usecases/BIGMAIL.html] |
Admin Q21: | Can I get a localized version in my native languange? |
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Admin A21: | With your help, yes. Please contact <[email protected]> |
Admin Q22: | I need ACLs for group access, versioning, a file browser and integration in my local file system. |
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Admin A22: |
This is beyond the scope of F*EX, which is designed for efficient file transfer only. |
Admin Q23: | Feature/design XY is missing. |
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Admin A23: | Contact the author <[email protected]> |
Admin Q24: | How can I get fup as start page? |
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Admin A24: |
Execute:
|
Admin Q25: | How can I use my own local FAQ? |
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Admin A25: |
Put your FAQ into file /var/lib/fex/htdocs/FAQ/local.faq and execute:
|
Misc Q1: | F*EX is great! Can I join the developing team? What needs to be done? |
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Misc A1: |
Contact the author <[email protected]>
Requested features are:
|
Misc Q2: | Can I donate something for F*EX? |
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Misc A2: | If you have a pet animal, fex a cute video of it to the author <[email protected]> |