Showing posts with label Computers. Show all posts
Showing posts with label Computers. Show all posts

Wednesday, August 29, 2012

Free SSL Certificate from StarSSL

Do you need free SSL for your web and email service? You may try StartSSL, they provide 128 SSL for free. To manage your certificate, visit control panel but ensure that SSL client ceritifate is installed on your browser. This client certificate is installed while you signup. Thus, you may only access to your control panel by the browser that installed client certificate. Please refer to its the FAQ page for install, backup certificate.

I just register today, not yet implement it on my system. I hope could update this posting later.

Tuesday, August 21, 2012

IP addressing tools with Excel

Are you a network designer? You may need this small tool to design IP address.
http://www.interisle.net/sub/topic_areas/IP_address_planning/IP_Address_Plan_Workbook-v101.xls.

This tool provide IP Address planing and inventory. Developed by Chuck Wade from Interisle Consulting Group.

I hope you found this posting useful :).


Friday, June 8, 2012

Windows 7 HyperTerminal

I need HyperTerminal program to configure network equipment, eg. router, switch and Ericsson RBS. Windows 7 does not provide this tools by default. Fortunately, you may still use it by copy from old Windows XP or by download it here.

Example of hypetermianl on WIndows 7. Lack of icon, but work perfectly.

Example accessing Ericsson RBS 6000 using HyperTerminal.
You may also use other alternative, such PuTTY as terminal emulator.   HyperTerminal is still my favorite tool, its easy to use, work well for generate script report, and or execute batch script.

I hope you find this short post useful :).

Saturday, March 3, 2012

ASUS X44C-VX007D

I just bought Asus X44C-VX007D notebook yesterday. Here its my brief experience about this value-for-money notebook.
Powered by Intel Celeron Dual Core B800 1.58Ghz give you enough power for day to day job. 2GB of RAM and 320GB HDD enough to do standard computing such MS Office, Web browsing and much more.

Also USB 3.0 very impress me. I copy about 1.5GB data from my external drive within 45seconds, much faster then USB 2.0. And IceCool technology keep the keyboard and mouse-pad area stay cool even after hours.

The fan is very quiet, and Asus provide such a utility to monitor fan speed. Nice.

I need to download display driver since the DVD drive since only provide Windows 7 64-bit drivers. And official web page doesn't provide drivers for WinXP :(.

Equiped with Altec Lansing, the sound is clear enough. And ELAN touchpad provide advance feature such zooming, rotating, and scrolling with two fingers.

Please install ELAN touchpad and Intel graphic driver, these driver are not included in DVD bundled. You may download for drivers here. For Rp. 3.500.000, this notebook is a good choice.

Tuesday, February 7, 2012

How To: Create Good Password

Some rule of thumb creating password for your computer and or online account:
-Do not contain your username. Example your username is james.bond, your password should not contain that word, eg. jamesS3cre7.
-Do not contain any of your personal information, eg. your real name, place and or date of birth, your pet's name, your parent's name, etc. Its social engineering, easy to identify your self by people or things around you.
-Easy to remember but hard to be guessed. Your password should contain lowercase, uppercase, number and special character eg. !@#$%^. Example, Gl0b4lwaRminx.
-Change your password at least every three month.
-You should not use same password for your critical service account such as your Internet Banking, with other service such social network sites.

Thursday, February 2, 2012

Free Push Email Software: Emoze

I'm using Emoze for my Nokia E63 push email service. You may use this cool application for free for personal use. Support multiple emails account, with Gmail, Yahoo!, H5 and Microsoft Live pre-configuration, you only need to provide username and password, and Emoze do the rest of set up process.
Read more. Lanjutkan!

Sunday, January 22, 2012

Windows XP Shortcut

Here its list of Windows XP shortcut. Note that this list is shortcut by Windows XP, not by specific application.
Read more. Lanjutkan!

Sunday, January 15, 2012

How To Activate Windows XP License Key

My Windows XP ask for activating, and worse, I don't have the license key. I found that this problem could be solved by editing registry entry.
Read more. Lanjutkan!

Saturday, January 7, 2012

C# free ebook

Are you looking for free C# ebook? Try download it for free here.

The Programmer's Heaven C# School book covers the .NET framework and the C# language. Starting with the basics of the language, it goes on to cover object oriented programming techniques and a wide range of C# languages features including interfaces, exceptions and delegates. Later chapters cover practical topics including database access with ADO.NET, building Windows forms applications, multi-threading and asynchronous I/O. The final chapter covers new features in C# 2.0, including generics.

Thursday, January 5, 2012

TeraCopy: Speed-up your huge file copy

TeraCopy is designated to help end user copying their huge file, especially in copy/move to another computer, in faster way.
Simple interface

Integrated with Windows Explorer

TeraCopy will by-pass check file process before copy or move it, and do the process in parallel. Make copy/move file faster than native windows.

Sunday, October 2, 2011

Compaq 515: Display Blank and Capslock Blinking

My friend's laptop Compaq 515 got problem: display blank and capslock key blinking. To solve this problem, unplug RAM, clean it carefully, then replug. If you install more than one module, try one-by-one on each slot, --usually there are two slots available-- until problem clear.

I hope you found it useful :).

Thursday, June 16, 2011

Maintain Your Computer With CCleaner

CCleaner provides one stop solution for computer maintenance. It support Windows XP, Windows 7, windows Vista and Mac. Unlike its competitor, CCleaner has more features. Most of Windows maintenance software release their free software only with limited features such as registry cleaner, system start-up, cleaning browser chache etc. But CCleaner offers more advance features in free standard edition, some of them:
Read more. Lanjutkan!

Wednesday, June 15, 2011

Windows Xp: Block Unwanted Website With DNS

I write about using Nawala DNS to protect our network/home computer from bad sites. We other option to accomplish this, by edit Windows XP DNS system directly. Open your Widows Explorer, go to C:\WINDOWS\system32\drivers\etc, open hosts file with notepad.
Read more. Lanjutkan!

Acer ASPIRE 4750 Mousepad Can Not Tap

My friend's Acer Aspire 4750 with Windows XP installed get problem: it's mousepad can't tap. Then I try to fix it, with action below:
Read more. Lanjutkan!

Monday, June 13, 2011

Troubleshot Outlook Express: Send Email Report Failure

Microsoft Outlook Express has storage limitation. If Inbox size more than 2GB, Outlook Express will fail manage Sent Items file (email sent report will fail). We need to convert existing full Inbox folder in to archive folder.
Read more. Lanjutkan!

Friday, May 27, 2011

IPMesenger: Chat And Transfer File On Your LAN

IPMesenger is a small (only 156 KB) yet useful program for chating and file transfer on Local Area Network. Its been around since 1997, even its web site and forum is 90's :). Available version for Windows XP and NIX* . You don't need any complex configuration. Just install it on each computer, start the program. Your friend's computer will appear. IPMesenger will display user name (user that is logging in on remote computer) by default, but you can setting further if you need advance configuration.
Read more. Lanjutkan!

Thursday, May 26, 2011

Linux Di Virtualbox: Basic Firewall With IPTABLES

Quick cheat sheet common IPTABLES function, I often forget, so I list here :).

To turn IPTABLES on every boot automaticaly: /sbin/chkconfig iptables on

To check status IPTABLES: iptables -L
To delete all parameters in IPTABLES: iptables -D

# Drop ICMP echo-request messages sent to broadcast or multicast addresses
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts

# Drop source routed packets
echo 0 > /proc/sys/net/ipv4/conf/all/accept_source_route

# Enable TCP SYN cookie protection from SYN floods
echo 1 > /proc/sys/net/ipv4/tcp_syncookies

# Reject ICMP redirect messages, system will not reply when get ping
echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects

# Reject ICMP redirect messages
echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects

# Enable source address spoofing protection, any package that pretend from internal network will be rejected
echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter

# Log packets with impossible source addresses
echo 1 > /proc/sys/net/ipv4/conf/all/log_martians
Read more. Lanjutkan!

Tuesday, May 24, 2011

Monday, May 23, 2011

Tor Hidden Service: Give Your Server Double Protection

I get a few hits on my posting about Tor Browser. Tor Browser is only a part features from Tor Project.

Tor Hidden service: For example, you have a SSH server as your gateway to access your company network. Script kiddies, automated script or any malware robot will easily found it. And they will  try to crack into your system. You may think "Why should I bother? I have strong password that not shared with anybody else. I have most update software. I am security expert, blah blah blah". Remember, hacking/cracking technique is always evolve, and your knowledge perhaps is not up to date. In my humble opinion, by using Tor hidden service, you get double protection. At least, any automated robot will not found your SSH server, because it seem doesn't exist to them.

I never try this service, but it seem promising. I'd love to hear your opinion , or perhaps your experience use it. Please share it, you may drop a message on comment box below :).

Friday, May 20, 2011

Useful DOS net Command

Some example DOS net command I usually use:
Adding user: net user [username] [password] /ADD
Delete user: net user [username] /DELETE
Starting service: net start [servicename]
Stoping service:  [servicename]
Adding administrator account: net localgroup administrators [username]  /ADD

Example adding administrator account via net command

I hope it useful :)