Cisco Lab for Free

amazing, I never imagine if Cisco lab can accessed online. Just signup, make reservation and do real thing you want in real lab. While you’re in China you can access Cisco lab in USA 🙂

I found two labs that might be useful for you :

1. Firewall CX

From their site :

The Cisco lab is a project that started in November 2004. Its purpose, to create the world’s first free, fully equipped Cisco lab and help the community learn and gain hands-on experience with Cisco equipment.

The investment made on this project is remarkable and next to none. Over $US10,000 has been spent on the lab equipment and various peripherals, aiming to provide the best possible simulations a lab can give. Hundreds of hours in research and development have been put in by our Team and other developers in order to enhance the labs and deliver an outstanding quality of service not found even on rented Cisco labs currently on the market.

Our lab is based on real Cisco equipment complemented by services such as ISDN simulators providing real ISDN calls between our routers, TFTP servers to allow you to save and restore your configurations and many more.

Each lab is split into two or more tutorials to gradually increase the experience and knowledge gained. The tutorials are carefully designed to focus on important details that might be required in the real world, while at the same time covering sections of Cisco’s CCNA and CCNP certifications.

The equipment comprising our labs make it possible to cover up to the CCNP level of Cisco certifications.

The flexibility offered by our labs is equally impressive; you are not confined in any way, and are allowed to freely modify all equipment you have access to. This gives you the ability to create and test your own setups, to help you troubleshoot problems or test new designs which can then be applied in your real working environment

Provide Cisco lab equipment has been installed in a 26U – 19′ inch rack, complemented by blue neon lighting and a 420VA UP to keep everything running smoothly, should a blackout occur.

Firewall CX have three labs :

  • The lab’s Catalyst 1912 supporting two cascaded 1603R routers, and a 501 PIX Firewall.
  • The lab’s two 1603R routers
  • Three high-end Cisco switches flooded in blue lighting, making VLAN services a reality. Also optical links connecting the three switches together, permitting complex STP scenarios.

Make sure check lab 1 tutorial

2. FreeCiscoLab

The lab is powered by a cisco access server which gives full access to the console port of each device in the lab. When your registered timeslot becomes avaiable, you telnet into the access server on port 23 using any standard telnet client.

Same as Firewall CX, make reservation first 🙂

3. Free Labs supplies access to live cisco equipment over the internet. Certification Candidates and Network Analysts can study protocol behavior, simulate network problems, or test new deployments.

Why are we doing this for free? – Because we know how difficult it can be to afford access to real Cisco equipment while working on your certifications. Also, we hope that by offering you this exceptional service, you will become comfortable enough with our company to buy our Expert-Labs timeslots, when the time comes for more serious network analysis or deeper CCIE-level study.

Overview – Pod #1

The Pod 1 Lab Topology includes 7 routers, 1 switch, 9 serial links and 7 Ethernet links. The star topology hubbed on router 7 is ideal for Frame Relay or any NBMA type protocol simulation. All devices are equipped with the most feature-rich software available, allowing simulations of virtually all routing protocols, and even IPv6.

Overview – Pod #3

Pod #3’s Topology is slightly different, with 2 less routers. Use the Frame Relay Mesh to learn your Routing Protocols inside out!

After learning how to configure the lab, I suggest that you increase your knowledge in security and experience by receiving a cissp certification or by attending a computer forensics boot camp course.

I’ll update this list, soon as I find other lab.

Time to update 101 resources

Free, secure and smart dns with OpenDNS

Recent surf activity sent me to interesting website, OpenDNS

What is OpenDNS?

OpenDNS helps you navigate the Internet in a safer, faster, smarter and more reliable way. Our service is free and requires nothing to download. OpenDNS doesn’t replace your existing Internet connection, it just makes it better.

Important useful things for me (taken from their FAQ) :

Why is OpenDNS safer than what I’m using now for DNS?

OpenDNS intercepts phishing attempts. OpenDNS customers will be warned if they attempt to visit a phishing site.

Why is OpenDNS faster than other DNS services?

Two things make OpenDNS faster than similar services. First, OpenDNS runs a really big, smart cache, so every OpenDNS user benefits from the activities of the broader OpenDNS user base. Second, OpenDNS runs a high-performance network which is geographically distributed (see network map) and serviced by several redundant connections. OpenDNS responds to your query from the nearest location. That means we’re very fast (and extremely reliable, to boot).

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in Dns | 526 Words

Install Microsoft Loopback adapter in Windows XP

Loopback adapter, what was that? another tutorial in dynamips tell about loopback adapter.
After googling for a while I found some interesting link to help me to answer my question.

Loopback adapter, this adapter suitable for computer who don’t have network adapter installed.

I see, I already use vmware where I can add new adapter as much as I can 🙂
I like graphic visualization , here’s the steps :

1.  The network before add loopback adapter


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-r switch in portupgrade

During update process from php4.4.6 to php4.4.7 I have problem, suhosin patch not found, force me to leave update process for few days while doing some other importing job.

Today I try again to update php4 ports and working well but then I become lazy after see a lot of php4-* ports 🙂

After read more in portupgrade manual I found -r :

From manual :


–recursive            Act on all those packages depending on the given
packages as well.

kongja# portversion -v | grep ‘< '

XFree86-libraries-4.5.0 < needs updating (port has 4.5.0_1) freetype2-2.2.1_1 < needs updating (port has 2.2.1_2) gd-2.0.34,1 < needs updating (port has 2.0.34_1,1) gettext-0.16.1_1 < needs updating (port has 0.16.1_3) gmake-3.81_1 < needs updating (port has 3.81_2) libdrm-2.0.2 < needs updating (port has 2.3.0) libungif-4.1.4_2 < needs updating (port has 4.1.4_3) ming-0.3.0 < needs updating (port has 0.3.0_1) p5-GD-2.35 < needs updating (port has 2.35_1) p5-GD-TextUtil-0.86 < needs updating (port has 0.86_1) pfstat-2.2_2 < needs updating (port has 2.2_3) php4-4.4.6 < needs updating (port has 4.4.7) php4-bz2-4.4.6 < needs updating (port has 4.4.7) php4-ctype-4.4.6 < needs updating (port has 4.4.7) php4-ftp-4.4.6 < needs updating (port has 4.4.7) php4-gd-4.4.6 < needs updating (port has 4.4.7) php4-imap-4.4.6 < needs updating (port has 4.4.7) php4-mbstring-4.4.6 < needs updating (port has 4.4.7) php4-mcrypt-4.4.6 < needs updating (port has 4.4.7) php4-mysql-4.4.6 < needs updating (port has 4.4.7) php4-overload-4.4.6 < needs updating (port has 4.4.7) php4-pcre-4.4.6 < needs updating (port has 4.4.7) php4-posix-4.4.6 < needs updating (port has 4.4.7) php4-recode-4.4.6 < needs updating (port has 4.4.7) php4-session-4.4.6 < needs updating (port has 4.4.7) php4-snmp-4.4.6 < needs updating (port has 4.4.7) php4-sockets-4.4.6 < needs updating (port has 4.4.7) php4-tokenizer-4.4.6 < needs updating (port has 4.4.7) php4-xml-4.4.6 < needs updating (port has 4.4.7) php4-zlib-4.4.6 < needs updating (port has 4.4.7) png-1.2.14 < needs updating (port has 1.2.18) popt-1.7_3 < needs updating (port has 1.7_4) sarg- < needs updating (port has t1lib-5.1.1,1 < needs updating (port has 5.1.1_1,1)

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in Unix | 84 Words

Mysql Workbench

From mysql page :

MySQL Workbench is a database modeling tool for MySQL. You can use it to design and create new database schemas, document existing databases and even perform complex migrations to MySQL. Main features:

  • fast OpenGL based canvas (requires hardware OpenGL)
  • database reverse-engineering
  • database/model synchronization
  • SQL script generation
  • quickly accessible ‘Overview’ mode, where the entire model is zoomed out to fit the canvas
  • design your database in conceptual, logical and physical levels
  • extensible architecture
  • export as SQL CREATE script
  • import/export DBDesigner4 models
  • visual representation of tables, views, stored procedure/functions
  • support for MySQL 5 features
  • selectable notations for diagram

at time of writing latest version mysql workbench is 1.1.0Alpha, download link for windows x86

Mysql workbench formerly was dbdesigner from

I try to install it before learn it more :


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