Friday, October 29, 2010

Android VPN - Want to kill self

After days of trying to setup openswan and make it work via IPSec/L2TP with roadwarriors and ultimately make it work with my Nexus One, I now want to kill myself. Setting up openswan is no easy task and requires reading from various sources and skim through outdated posts.

However I did get it to work as expected with Windows road warriors.

It appears that racoon (the IKE daemon on Nexus) dies soon after the tunnel is established:


I think that's why you get all that l2tp traffic on the loose where it isn't supposed to be. I abandon all hope it maybe an openswan | NETKEY issue on CENTOS 5.2.

I will instead go for the OpenVpn solution which I am already using for my net.

Sunday, October 17, 2010

Prepare HylaFax for email to fax gateway with qmail

So this took me some time (mainly because I forgot all about qmail configuration), hence I thought to make a note.

We will use virtual domains in qmail to send faxes with Hylafax.

The default in the hylafax supplied script is to use a 'fax' top level name and send emails of the form user@number.fax. I prefer to use fax.mydomain.com instead. To accomplish this:

1)Add to (or create) /var/qmail/control/virtualdomains the line:
.fax.mydomain.com:fax

Be careful to include the dot in front of the domain. It simply means that we're catching anything below it.

2)Add to /var/qmail/control/rcpthosts:
.fax.mydomain.com

Which means that anything below the domain will be served locally.

3)Create /var/qmail/alias/.qmail-fax-default and add:
| /usr/local/bin/mailfax

4)Copy from hylafax-source-dir/faxmail/mailfax.sh-qmail to /usr/local/bin/mailfax
If you cannot find it, create it empty and read on.

5) Edit /usr/local/bin/mailfax as:


My edits are simply fixing location errors for redhat flavors and add support for emails in the form recipientuser@faxnumber.fax.mydomain.com

6) Do not forget to send a HUP to qmain-send.

Converting text files to fax fails - Hylafax, Ghostscript, FC10

I have been trying to solve the infamous error:

/usr/sbin/textfmt: No font metric information found for "Courier-Bold"

when running sendfax to test asterisk + hylafax.

This is a bug in ghostscript-8.70-1 & fonts for Fedora Core 10. So if you are not using FC10 this may not be the answer you 're looking for.

To fix the error:

1) Download & extract latest ghostscript-fonts http://sourceforge.net/projects/gs-fonts/
2) View the fonts.dir file and locate the file name of the font you wish to use for Courier-Bold, I chose n022004l.pfb
3) Copy n022004l.* (2 files) to /usr/share/fonts/default/ghostscript/
4) Edit /usr/share/ghostscript/8.70/Resource/Init/Fontmap.GS and change:

/Courier-Bold /NimbusMonL-Bold ;

to:

/Courier-Bold (n022004l.pfa) ;

Try it now and it should work.

Of course this is just one of many solutions, the main point being that NimbusMonL-Bold cannot be found and causing the issue.