Archive for the Category » Technical «

Tuesday, April 25th, 2006 | Author:

I was looking for a host uptime tracking service and I found Host-Tracker. http://host-tracker.com/

Now I can track my site uptime and the sampling time can be set at every 1 min ! Most other free services offer 15mins to 30mins which is just not good enough.


Category: Technical  | Comments off
Monday, April 24th, 2006 | Author:

Will companies use a system like ISMS to ensure that they are meeting with ISO17799, BS7799 compliance for Information Security ?

ISMS in short, Information Security Management System
ISMS, detailed documentation on controls, threats, vulnerabilities.

Any book to recommend or document templates samples for an inspiring Security Auditor ? :p

Category: Security  | Comments off
Monday, April 24th, 2006 | Author:

When I plugged in my USB harddisk to my PC, to my horror, I started to hear some kind of clicking sound and the harddisk is trying to spin up and stop repeatively.

So I looked at my system’s dmesg messages and realised my HDD is a goner. My OS is unable to mount the vfat partition.

Remove the 2.5in harddisk from my USB casing and connected it back into my IBM X21, inserted an Ubuntu 5.10 LiveCD. Once Gnome desktop came up, I tried to mount the partition again, this time is successful !

I managed to save most of my data except 2 ISO files which I suspected they are residing on the harddisk bad sectors. I ran the harddisk diagnostic tool, guess what, bad blocks were detected.
Googled around and found a site with most of the different harddisk vendors’ Low Level Formatting tools. At the same time, I decided to “nuke” my harddisk.

more…

Category: Linux, Systems, Technical  | Comments off
Wednesday, April 12th, 2006 | Author:

Why use bloatware like Adobe Reader ?

Adobe Reader 7.07 – 20.3MB
Adobe Reader 6.0.1 – 15.9MB
Adobe Reader 5.05 – 9.9MB
Foxit Reader 1.3 – 1.11MB, Uncompressed exe 2.42MB

Single executable file. Faster launch times. Adobe Reader look and feel. Do the comparison.

Of course in Linux, there is always Evince

Category: Technical  | Comments off
Monday, April 10th, 2006 | Author:

Not the whole world but… I just came across this. An open source gaming console ??

Offical site here, wonder is there any units in Singapore yet ?

Category: Technical  | Comments off
Friday, April 07th, 2006 | Author:

I had a major problem. I have to “analyze” Windows event logs from several Microsoft Windows Servers in a centralised location.

Procedures:
Open Event Viewer
Browse to folder
Open hostname-year-month-day.evt
Filter Errors and Failure Audits
Repeat for the rest of the servers

I was lucky to stumble upon the Log Parser, a command-line which allows SQL queries to be run against log files and dump the required results into simple csv files.
“C:\program files\log parser 2.2\logparser.exe” -i:evt “select EventLog, TimeGenerated, EventID, EventTypeName, EventCategoryName, SourceName, Strings, ComputerName, SID, Message into %2 from %1 where EventTypeName like ‘Error%%'” -o:csv -resolveSIDs:on -direction:BW

Where %1 refers to your source and %2 to your destination.

Quoted from my friend “If you have to click on the same thing more than 2 times, automate it.”

Category: Systems, Technical  | Comments off
Tuesday, December 27th, 2005 | Author:

CC=gcc-3.4 /usr/bin/vmware-config.pl

Of coz, Install GCC 3.4 first.

Category: Linux, Technical  | Comments off
Monday, December 19th, 2005 | Author:

Having a “small” problem with HSRP.

ASCII Network Diagram

[switch-a1]--[router-a1]--[ISP 1 Cloud]--[router-b1]--[switch-b1]--- Active Link
|          |                           |              |
[switch-a2]--[router-a2]--[ISP 1 Cloud]--[router-b1]--[switch-b2]--- Standby Link

I configured HSRP all on devices. My problem is, when a switch-a1 fails, router-a1 fails over to router-a2. but router-b1 will not fail over as the link between router-a1 and router-b1 via ISP 1 is still up.

I tried HSRP tracking, but the best tracking method I found is IP Route Reachability.
Track shows the object is up if the gateway to that network is still in your routing table.

so even configuring “track 100 ip route 10.2.2.2/32 reachability” doesn’t work, as the gateway is added manually as a static route.

Sample Config from Cisco.

more…

Category: Network, Technical  | Comments off
Wednesday, December 14th, 2005 | Author:

To reset the Symantec System Center admin user password

1. On the computer running Symantec System Center, start Windows Explorer.
2. Go to \Program Files\Symantec\Symantec System Center\Tools.
3. In the right pane, double-click the IFORGOT.exe file.
4. In the Primary server field, type the name of the server group’s primary server.
5. In the user field, type admin
6. In the New Password and Confirm New Password fields, type the new password.
7. Click Reset Password.
You may be prompted for a Windows user name and password if you specify a remote server.

Category: Technical  | Comments off
Wednesday, December 14th, 2005 | Author:

By default, Microsoft RPC allocate ports from 1024 – 65535.

To restrict them to 5000 – 5100, Use the Registry entries below.

— cut here —
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\Internet]
“Ports”=hex(7):35,00,30,00,30,00,30,00,2d,00,35,00,31,00,30,00,30,00,00,00,00, 00
“PortsInternetAvailable”=”Y”
“UseInternetPorts”=”Y”

— cut here

Category: Network, Security, Systems, Technical  | Comments off