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Suares & Co Open Source Solutions
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Suares was in Nederland vanaf 1992 aktief, maar op 1 januari 2006 alle aktiviteiten overgedragen aan Jan Veuger Internetdiensten.
Vanaf 2002 aktief in de Nederlandse Antillen (Curacao, Bonaire).
Suares & Co levert de service voor 725 domeinnamen, 30 statische websites, meer dan 200 database driven websites (incl. QwikZites), 70 mailinglijsten (samen meer dan 10.000 unieke abonnees) en ruim 1100 email-gebruikers (281 unieke email-domeinen), in de Antillen en in Nederland.
Suares & Co werkt samen met Kuki & Ko in Curaçao en met Jan Veuger Internetdiensten in Nederland.
Kunnen wij ook iets voor U doen !? Neem dan via e-mail contact met ons op, of bel +5999 678 00 60.
Ace Suares speelde een rol in de door de Curacao Tourist Board in de VS getoonde commercial: 'Letters' op YouTube
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ZentyalEbox, slowness, and WDxxEARS Advanced Format
10-02-2011
Zentyal (formerly named Ebox) is an Ubuntu based Small business server that is easy to configure and in my opnion a real breakthrough in Ubuntu-based small business servers. Unfortunately, I had a bit of bad luck (or lack of information) when I installed my first two servers for clients on Curaçao. The server was very, very slow, up to the point where a simple ssh login took 2 minutes and in one case the install halted halfway. I spent many hours trying to troubleshoot the problem and meanwhile I had to revert to webmin or some other solution.
The problems are described in the following posts on the Zimbra forum:
http:forum.zentyal.orgindex.php?topic=3697.0
http:forum.zentyal.org index.php?topic=4212.0
http:forum.zentyal.orgindex.php?topic=3968.0
http:fo rum.zentyal.orgindex.php?topic=3427.0
http:forum.zentyal.orgindex.php?topic=42 73.0
and most notably
http:forum.zentyal.orgindex.php?topic=5724.0
Unfortunately, the forums didn't help much. After many days of frustration, I decided to buy support, which cost 390 EUR. I've never paid for support before in my life and I hope I don't have to do it again. Although the team at Zentyal did their best to help me, they didn't really succeed. Finally, after swapping out all hardware except the harddisks, I bought a new harddisk, although there where no harddisk errors reported and SMART status was okay.
Then it hit me like a brick. I typed in the model number of my Western Digital Caviar Green WD10EARS and what do you think - hundreds of posts about how this harddisk uses Advanced Format and how that gives loads of problems. Google for yourself: any WD of the EARS series has this problem. My new disks where of the EADS series and after copying all the data (which took ages) and reinstalling the server, the server was flying! Normal load, normal speed, everything was fine.
The problem lies in the alignment of sectors on the EARS drive. More information on the Advanced Format can be found here and here.
After I repartitioned the EARS drives by hand, I installed a new server with these disks, and the server was as fast as it should be. Wrong alignment of the EARS drives really really slows all disk IO down.
Newer versions of parted should detect AF automatically and so I hope the Zentyal team will put the newer version of parted into their installer. Also, when giving support, a simple
hdparm -i devsd?|grep EARS
would make the problem clear right away. A pity that the team at Zentyal didn't know that and I hope this information will be integrated in their knowledgebase.
All in all, I find Zentyal a great product that really fills a niche in the small business server market. I am happy with the server now that the slowness problems have been solved.
Ebox 1.4 and HP Color LaserJet 2600N
01-09-2010
Follow instructions here: ubuntuforums.org, except the last step.
$ wget -O foo2zjs.tar.gz http:foo2zjs.rkkda.comfoo2zjs.tar.gz
$ tar zxf foo2zjs.tar.gz
$ cd foo2zjs
$ make
$ .getweb 2600n # Get HP LaserJet 2600n .ICM files
$ sudo make install
$ sudo make cups
Now go to Ebox - Printer Sharing - Add Printer
And go find the HP - Color Laserjet 2600N. It will now have a driver (foo2hp). The next page you can select stuff:
"Color Mode" = Color
"Bits Per Plane" = 2
"ICM Color Profile" = (something like hpclj2600n-0.icm)
Firefox on LTSP as Local Apps (Thin Client, Ubuntu)
20-07-2009
Firefox as Local App on Ubuntu Jaunty 9.04
LTSP: The possibility of running Local Apps on the Thin Client is part of Ubuntu since Jaunty (9.04). The most obvious choice is to run Firefox (inlcuding Adobe Flash) locally. As you might have experienced video (f.e. on YouTube or Vimeo) can be very slow on the thin client because the content gets decoded on the server and video is sent uncompressed over the network to the thin client. Kind of defeats the whole purpose of Flash. (Rant: Flash should be open sourced, it's a PITA on Ubuntu 64bit!)
On the Edubuntu website, it's advertised that it's very easy to install firefox as a local app. Well. It's kind of easy. See www.edubuntu.comDownload. In fact, my lts.conf looks like this:
$ cat varlibtftpbootltspi386lts.conf
# Global defaults for all clients
# if you refer to the local server, just use the
# "server" keyword as value
# see lts_parameters.txt for valid values
################
[default]
X_COLOR_DEPTH=16
LOCALDEV=True
SOUND=True
NBD_SWAP=True
SYSLOG_HOST=server
#XKBLAYOUT=de
LDM_DEBUG=n o
LDM_DIRECTX=True
LOCAL_APPS_MENU=True
DNS_SERVER=10.0.0.1
#SCREEN_0 2 = shell
SCREEN_07 = ldm
By the way, I tried 'locate lts_parameters.txt' but found nothing.
alkisg on #ltsp says: zcat usrsharedocltsp-serverlts-parameters.txt.gz | less
So it's with a dash not and underscore. Someone should file a bug. Why not you!?
What I had to do to get firefox and flash installed:
sudo -s
chroot optltspi386
apt-get install firefox flashplugin-installer
exit
ltsp-update-image
exit
Firefox but no internet...
Firefox worked right away as local app. Not very fast (my thin client is not a powerhorse, that's what thin clients supposed to be: lean and mean, cheap, low RAM, etc. Be advised that Firefox and Flash need RAM and CPU and everything. No Pentium I with 64 MB that normally works fine as a thin client!
Okay, now how about some browsing? Sorry, you need to do a lot of things to make that possible. After some searching and with help of the kind people in #ltsp, I found this: wiki.ubuntu.comThinClientHowtoNAT
Dazzling uh?
My network has a firewallsquid proxy. The proxy is on 10.0.0.1:3128. My LTSP server is on 10.0.0.2 on the LAN side and on the Thin Client side it's 192.168.0.1. The thin clients are in the range 192.168.0.200 - 250, it's a seperate LAN (standard setup by the way).
Now can't I skip the whole ipforward and NAT? The NAT stuff is not that complicated but it opens a whole range of possibilities to get from the Thin Client LAN to the other LAN.
Maybe redir (a TCP redirector) will help? It's helped me many times, when migrating servers for example. Say your old POP3 server is on 1.2.3.4 and the new on on 1.2.3.5. After you changed your DNS there will be a period of time (up to 4 days with our local braindead provider) before all the DNS changes have propagated. Simply install redir on the old server and redirect all TCP traffic for port 110 to the new server. No one will notice any service outage, great!!!
So here's what I did:
sudo apt-get install redir
sudo redir --laddr=192.168.0.1 --lport=3128 --cport=3128 --caddr=10.0.0.1 --bind_addres=10.0.0.2
Here is an explanation of the options to redir:
--laddr: the local address of the LTSP server on the Thin Client side
--lport: arbitrary, but 3128 is the standard.
--cport: it's the port my squid proxy runs on by default
--caddr: the address of the firewallproxy on the LAN
--bind_addr: the address of the LTSP server on the LAN side.
Be sure to make sure to ensure that redir is not quitting on you, it does that often, build some stuff around it that it will always restart.
The funny thing is that,after you told firefox to use 192.168.0.1:3128 as a http proxy, it also doesn't moan about not being able to resolve DNS. (See https:bugs.launchpad.netubuntu+sourceltsp+bug348305 and https:help.ubuntu.comcommunityUbuntuLTSPLocalAppsResolvConf)
Of course it only works for http on port 80, but there are probably ways to make it work for https and other ports too. Is https really proxy-able? Hmm. Anyway, for simple requirements this is sufficient, and maybe Ubuntu 9.10 will have the NAT stuff all automated, that would be nice then this post will be absolutely obsolete. That'd be nice :-)
Oh, flash does give me sound but no image, but I guess that's some other problem.
See also https:wiki.ubuntu.comThinClientProxyRedirect
03-07-2009
ClamAV on Dapper
21-06-2009
Converting an Access database to mysql with mdbtools
14-05-2009
Zimbra, Kmail, Maildir convert, Kaddressbook imports and other Annoyances
11-04-2009
Installing Scalix 11.4 on Ubuntu 8.04 Hardy (32bit)
10-04-2009
Site slow after installing gzip compression: Transparent gzip and zlib.output_compression in PHP and Content-Length
Presentatie: Google Everything
30-03-2009
GOsa, Gonicus, openldap and ubuntu 8.10 (gosa2)
16-03-2009
Linux Cursus Diverse Bedrijven
15-03-2009
Zimbra, Kmail, Maildir convert, Kaddressbook imports and other Annoyances
28-02-2009
Linux Cursus Fatum NV
06-02-2009
Interview Radio Hoyer
04-02-2009
Presentatie Curacao ICT Network
31-12-2008
Linux Cursus Directie Financien Nederlandse Antillen
31-12-2008
Linux Cursus E-commerce Park
11-12-2008
QwikZite drie keer genomineerd voor Innovatieprijs 2008
09-12-2008
Fatum Curaçao overweegt Open Source
13-11-2008
A big Linux advocate on a small island
01-11-2008
Open German Ministry
01-11-2008
SolarNetOne - Internetwork on Solar Energy
25-10-2008
Creating a hunspell dictionary for use as spellcheck in Open Office
23-10-2008
Open Amsterdam
09-10-2008
Verslag enquete Open Source
16-08-2008
CSS-only inline inplace edit (no javascript) in Ruby on Rails
15-08-2008
Using AJAX and link_to_remote with tabnav widgets in Ruby on Rails.
07-08-2008
Fixing plone-site on Ubuntu 8.04 Hardy
07-08-2008
Removing sendmail dependencies from spamass-milter on Ubuntu Dapper when using postfix
24-07-2008
Monitoring X Traffic with xmon on Ubuntu
23-06-2008
Thin Can DBE61 from Artecgroup on Hardy LTSP
18-06-2008
Avoiding Xgl on Ubuntu Hardy LTSP thin clients
13-06-2008
AMS-IX bouwt internet exchange op Curacao
29-05-2008
Eerste OLPC op Curacao
23-05-2008
Installing Ubuntu 5.10 Breezy as Virtual Machine with qemu or kvm
24-03-2008
IBM Lotus Forms (Formerly Workplace Forms, PureEdge)
14-03-2008
ltsp-build-client and apt-mirror
14-02-2008
Adding a second hard disk to winxp under qemu on ubuntu linux.
14-02-2008
Trouble with raid and lvm on Ubuntu Dapper
28-10-2007
Installing jEdit on Ubuntu
22-02-2006
auth_ldap for Apache 1.3: a patch to allow anonymous binds to work properly.
Qwikzite
QwikZite is een door Suares & Co ontwikkeld Content Management System, gericht op individuen en kleine organisaties die wel veel informatie te bieden hebben maar geen kennis van het opzetten van een website. QwikZite is flexibel en nodigt uit tot het actueel houden van uw site.
Developed with QwikZite (version 1.12)
Designed by Kuki & Ko
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