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Wednesday, September 15, 2010

Super Easy Accepting Liberty Reserve Payment

 Liberty Reserve have made few tools and API so that merchants can sell their product or accept payments easily.

i take one of those tools and make it even easier!

with my Liberty Reserve Merchant widget, you can start selling or accepting payments in few seconds.



you can add the widgets to any website/blog that allow javascript or widgetbox widgets. including blogger/blogspot, yola / synthasite, spruz, jimdo, webstarts, etc.

-- tips & tricks on computers and gadgets denny on IT ; let's doIT documenting the brain

Friday, March 19, 2010

wicd + dnsmasq + opendns - opendns (ads) guides = faster browsing

there are many many ways to speed up your browsing experiences.


one of many ways is optimizing your DNS server list.
each and every file on the internet is located on a certain (sub)domain.
so, each and every request of any file from your browser will need to query DNS servers first, before it can be fetch to your browser.

as you can see, DNS play significan roles in your browsing experience. if you're using firefox and see a lot of 'looking up someslowdomainname.com' then your DNS is slow.

here's how i speed up DNS lookup a little bit. first, install dnsmasq to do dns queries and cache all the results. thus repetitive lookup will perform much faster because the result is already in cache.

then, tell dnsmasq to do the queries to opendns to let it filtered out phising and malware sites. but, opt-out the opendns guides and block my local ISP ads.
edit /etc/dnsmasq.conf and add this lines:
#http://winware.org/bogus-domains.txt
bogus-nxdomain=92.242.132.11 #telkom speedy indonesia ads
bogus-nxdomain=67.215.65.132 #opendns guides
#bogus-nxdomain=208.67.219.135 #opendns blocked pages
#bogus-nxdomain=64.94.110.11 #verisign


last, must not pass this one, tell the clients (i use wicd to manage my linux networks), including browsers, messengers, etc.. to query local dnsmasq instead of the far away opendns servers.
edit /etc/resolv.conf.head and add these lines:
nameserver 127.0.0.1 #query local dnsmasq
#dnsmasq will query these. also, in case dnsmasq fail, all apps will query these too:
nameserver 208.67.222.222 
nameserver 208.67.220.220

if you need more redundancy, in case all your dns fail, add this to /etc/resolv.conf.tail
#google's 
nameserver 8.8.8.8 
nameserver 8.8.4.4

wicd will automatically merge dns from your router/isp between resolv.conf.head and resolv.conf.tail


now... our dns is much faster... what else can we do to speed up browsing? what do you do?

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Tuesday, February 09, 2010

Vote Komodo for the New7Wonders of Nature

vote for komodo and put this widget in your web/blogs to show your support



--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Sunday, February 07, 2010

Archlinux faster boot

one great thing about archlinux is the rc.conf which simplify services configuration a lot.

instead of messing with lots lots of rc.X files, you only need to configure one single file for all bootup process.

also, this way, you have full control which services should startup first and which services can start later.

i move kdm service to start earlier so that i can have X starts while other services starts in background.
this is how i arrange the services/daemons:
DAEMONS=(syslog-ng @network hal wicd kdm netfs crond laptop-mode compcache)

or, you could also put a lot of @ in front of each service so it starts in background, as more Arch user use like this:
DAEMONS=(syslog-ng @network hal wicd @netfs @crond @laptop-mode @compcache kdm)

how is yours arranged?

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Friday, February 05, 2010

minimal KDE / KDEmod on Archlinux

if you follow the instruction on kdemod installation, we're told to do 'pacman -S kdemod-minimal' to install minimal KDE.

but that need to download over 400Megs packages and that does not seems minimal for me. coz the Archlinux KDE minimal install, only need much much smaller packages:
pacman -S kdebase-workspace kdebase-konsole

so i guess, i can do the same thing with kdemod. which i did:
pacman -S kdemod-kdebase-workspace kdemod-kdebase-konsole

now, that's what i called a minimal install.

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Thursday, February 04, 2010

offloading wpmu themes and plugins to cdn, fast & easy, without plugins

one of many ways to speed up your wpmu is by offloading your themes and plugins url to CDN.


there are many plugins to let you do this. you can also use htaccess to rewrite all your /wp-content url to cd.

but i just found out, you can do it very easily without any plugins or htaccess rewrite. just edit your wp-config.php like this:

define( 'WP_CONTENT_URL', 'http://your.cdn.host/wp-content');
define( 'WPMU_PLUGIN_URL', 'http://your.cdn.host/wp-content/plugins');

that's all it.
now all your wp-content and plugins url will be change to your.cdn.host and no cost for htaccess rewrite or plugins processing.

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Monday, January 25, 2010

install my widgets on yola synthasite


this is how you can install one of my great free widgets on widgetbox in your yola / synthasite:
  1. login to your yola / synthasite
  2. drag Widgetbox Gallery and drop to your page
  3. search for dennyhalim to see my widgets
  4. choose any widgets, customize it as you like
  5. klik on 'Get Widget'
  6. klik on 'Save' button
  7. klik on 'Update My Site'
  8. done.
that's all it. now you can see my widgets on your yola / synthasite.

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Thursday, January 07, 2010

netinstall urls for virt-manager


i dont know if it's documented coz i cant find this anywhere.

here's a list of url i used to netinstall linux (xen/kvm) using virt-manager:
  • debian: http://ftp.riken.jp/Linux/debian/debian/dists/testing/main/installer-amd64/current/
  • centos: http://ftp.riken.jp/Linux/centos/5/os/x86_64/
  • opensuse: http://ftp.riken.jp/Linux/opensuse/distribution/openSUSE-current/repo/oss/
  • mandriva: http://ftp.riken.jp/Linux/MandrivaLinux/official/current/x86_64/
  • fedora: http://ftp.riken.jp/Linux/fedora/releases/12/Fedora/x86_64/os/
adjust it with your local mirror and the version you want to install.


--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Tuesday, January 05, 2010

upgrade fedora kernel without compiling

i hate compiling. even that gentoo, archlinux and freebsd makes it really very easy.
however easy it gets, i still hate compiling...

i got very recent laptop which have intermittent lan and wifi connection with default kernel.

this one-line is all it takes to upgrade fedora kernel without compiling:

su -c 'yum --enablerepo=rawhide update kernel*'

that's all it.
your kernel will be upgrade to the latest kernel from rawhide (fedora testing)

that fix my intermittent network connection.

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain

Saturday, January 02, 2010

light simple compiz alternative composite window manager

happy new year! wish you all blessed and peace!

introducing xcompmgr - sample X compositing manager.
xcompmgr is a sample compositing manager for X servers supporting XFIXES, DAMAGE, and COMPOSITE extensions. It enables basic eye-effects.

imho, this is very hidden 'treasure' of linux freedesktop xapps.

it's not much know or used. but once i try it, i like it a lot!

well, maybe it's not comparable to compiz (fusion). it's not that feature full. and most important (for me) it's not that heavy weight compositing champion.
i can just run compiz, gnome/kde and all the glory on my Turion II laptop. but i rather let all resources goes to kvm to use/run/test other linux/win/solaris/firewall/servers/etc.
so, i try to keep bare minimal fancy X stuffs on my system. i use fedora lxde spins in this lappy.

i like compiz. but as i said, it's overkill for me. and i need all the resource i can get for kvm. so looks around to find the alternatives. xfce is the well known lightest desktop with compositing.

not anymore...
now with xcompmgr, you can use whatever your favourite lightweight window manager and still can have cool compositing desktop.
tested with fluxbox, awesome2, fvm2, and openbox (with lxde). all works good. it's very light, fast and use very low ram and cpu.

to test it, just install xcompmgr and run it inside X. if you like it, you can put it into autostart so that it start everytime X starts.

xcompmgr -c -f -F &
man xcompmgr

--
tips & tricks on computers and gadgets
denny on IT ; let's doIT
documenting the brain