http://blog.nirkabel.org This blog is here to stay Sat, 01 Nov 2008 03:39:09 +0000 http://backend.userland.com/rss092 en I wanted to play Hello Kitty Online (HKO) on my MacBook. I still got my Fujitsu laptop, but these days I mainly use my MacBook. Sanrio Digital, the developer of HKO, does not seem to have plans for a Mac version of HKO client any time soon (as shown at ... http://blog.nirkabel.org/2008/11/01/hello-kitty-online-on-mac-os-x-with-crossover/ PREROUTING in nat table: DNAT, REDIRECT POSTROUTING in nat table: SNAT/MASQUERADE PREROUTING in mangle table: alter routing (e.g. source-based routing) FORWARD in mangle table: traffic shaping for tc (flowid) In MikroTik RouterOS, /ip firewall nat: srcnat chain = PREROUTING dstnat chain = POSTROUTING http://blog.nirkabel.org/2008/07/09/iptables-mangle-and-nat-notes/ Current MikroTik RouterBOARDs do not have a reset button (if you find a button on your RouterBOARD, it's not the reset-to-factory-default button) to get it reset to the default factory configuration. User guides for each RouterBOARD, which MikroTik provides on routerboard.com, define the identifier and location of the reset mechanism. ... http://blog.nirkabel.org/2008/06/17/reset-mikrotik-to-default-factory-configuration/ Since I don't use it often, I keep forgetting the shortcut keys on taking screenshots in Mac OS X. Here is the list: Command-Shift-3: Take a screenshot of the screen, and save it as a file on the desktop Command-Shift-4, then select an area: Take a screenshot of an area and ... http://blog.nirkabel.org/2008/05/26/taking-screenshots-in-mac-os-x/ In a situation, I had to extend my PPPoE network over a wireless bridge. I do not want to have nor maintain 2 PPPoE servers. I didn't bother failed to understand how PPPoE works and made a wireless bridge without WDS. When one user log in from the bridged side ... http://blog.nirkabel.org/2008/05/20/extending-pppoe-access-network-with-network-bridge/ If connectivity-wise there is no problem, then check system date and time. Most likely system date and time is way off. Synchronize if necessary! Third party NTP clients (such as Automachron) are better than Windows' built-in one since they don't need port 123 (UDP) incoming to be open. http://blog.nirkabel.org/2008/05/20/windows-live-messengermsn-messenger-sign-in-problem/ Check advanced settings of IE, something to do with image link or stuff. Apparently YM uses Internet Explorer component for the chat windows. Probably to ease display formatting since HTML features are already built-in. http://blog.nirkabel.org/2008/05/20/yahoo-messenger-with-broken-emoticon-images/ Oracle JInitiator, Windows Live Messenger, Internet Explorer 7 - possible conflict causes IE to crash, disable Windows Live Messenger add-on on IE to fix. Java applet error (cache failed) requires the correct expected Java version to be installed. http://blog.nirkabel.org/2008/05/20/java-applet-related-problems/ To determine which shell is currently being used, do echo $0. http://blog.nirkabel.org/2008/05/18/determining-current-shell/ Previously I wrote a post which discusses real-time CPU statistics utility. Now if you need historical data of CPU utilization statistics, use sysstat's sar. For Fedora and CentOS, there is an official RPM package for sysstat. Once you have installed sysstat, leave it for a few minutes until you get some ... http://blog.nirkabel.org/2008/05/10/historical-cpu-statistics-utility/