Narrator: Dean Angelides (ESRI Inc.) Designing Our Future
(share map services across planet and design with live preview of my service :-)
From 21-22.10.2009 / Wednesday to Thursday in Prague Congress Centre you can watch some map (twice) that I designed :-)
This sample runs on nginx reverse proxy and Arcgis server (Apache Tomcat) by ESRI (in OpenVZ containers) and it covers whole Czech Republic.
Clients are AdobeFLEX (thin) and GiselAE (desktop).
There is a very little server overhead, so one server (nginx reverse proxy/load balancer/fail-over) can be used by thousands of clients.
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used OS: modified Gentoo Linux (Gentoo Foundation)
remark: as backend there are two Arcgis servers and balancer can auto-switch to second if first fail.
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Of course you can meet me here…

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There are two kernels (bzImage and bzSafe), bzImage is experimental one and bzSafe is default.
Copy your testing kernel to bzImage and run # grub-set-default 1
After rebooting your new kernel is trying to boot, if anything goes wrong bzSafe is selected after new reboot.
If you like new kernel, simply copy bzImage to bzSafe …

– This is very friendly grub.conf for server –

default saved
timeout 1
fallback 0

title=Kernel Safe
root (hd0,1)
kernel /boot/bzSafe root=/dev/hda2
savedefault

title=Kernel Experimental
root(hd0,1)
kernel /boot/bzImage root=/dev/hda2
savedefault 0

– This is very friendly grub.conf for server –
Change (hd0,1) and root=/dev/hda2 to suit your system configuration, have fun ;-)

Crystal clear code (only PHP engine used – PERL free :-)
www.syscp.org

Apache, Lighttpd, Awstats, Courier, Proftpd // Gentoo Supported

:-) so if you see this error, you have problem with openssl 0.9.8g.
This is small bug in client part of openssl and now is often visible in new Firefox 3
Simply disable TLS v1 in your server (SSHv2 too because of better security)

Insert this line into httpd.conf
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SSLProtocol all -TLSv1 -SSHv2

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That’s it :-D

Spamassassin and postfix greylisting feature are now used on my mail server to prevent some (maybe a lot of) incoming spam. Server returns temporary error for unknown IP and destination mail kombination and wait for another try.

# emerge postgrey // that’s it :-) I love Gentoo