Friday, March 06, 2009
Areas of Work Where a Juniper Engineer Works Best
There are three areas where you can efficiently utilize the services of a third party or in-house Juniper engineer. The expertise that can be provided by a Juniper engineer could improve the security protocols of your network. Network security should become one of the top priorities of your company’s IT infrastructure. That’s because risks and vulnerabilities have increased overtime due also to the increasing sophistication of technologies designed to breach the defenses of corporate IT networks. By utilizing the expertise of a Juniper engineer, your company will be able to deploy effective network security solutions. Analyze and Assess Network Security with the Help of a Juniper Engineer An expert Juniper engineer can accurately assess and analyze the security performance and defense posture of your company’s networks. Proper evaluation of existing networks and security protocols deployed on it would enable you to address vulnerabilities. Analysis and assessment can also provide information on what areas of your network need improvement. Through the expert evaluation of a Juniper engineer, you can enhance your network’s security performance and add value to your IT investments. The return on investments of your network facilities could also improve if it can be properly evaluated by a Juniper engineer. Specifically, a Juniper engineer will look into the current security protocols deployed on your system. After assessing the procedures and security policies of your network, the Juniper engineer could provide mitigating actions which could minimize risks and vulnerabilities. Assessment and analysis of your network are critical steps you need to optimize the performance of your company’s IT environment. A Juniper Engineer Can Design and Plan Network Security If you are still planning to build your company’s network infrastructure, a Juniper engineer can provide valuable help in designing the appropriate security protocols for it. Design is a critical phase of network building. This is the stage where a Juniper engineer can correctly configure the core security applications of your network infrastructure. After the design stage, the actual network implementation plan should be created. At this stage, a Juniper engineer can provide valuable input and assistance in terms of pinpointing the areas where security optimization can be deployed. Planning robust and scalable network security applications can also be done by a Juniper engineer. It could help your company maximize the potential benefits of a secured network and reduce incidence of malicious attacks. With the help of a Juniper engineer, you can shorten the time involved in network design and planning, thus giving your company much savings in time, resources, and effort. Deployment and Implementation of Network Security One of the biggest network projects is the actual deployment of security applications, protocols and procedures. This stage requires the expertise of a network security professional. A Juniper engineer can provide the expertise for such project. For new networks, the task could be simpler as the infrastructure will be built from scratch. Deployments become more complicated during migration procedures of existing networks. Migration of security protocols from one system to another could expose the network to vulnerabilities and greater risks. That is why it is extremely important to get proper support from an expert Juniper engineer during network security migrations and actual deployments.
Article Source: http://www.articlesbase.com/networks-articles/areas-of-work-where-a-juniper-engineer-works-best-627370.html
About the Author:
Bsecure is a Sydney based Network Security Services company that provides affordable assessment, consultation, design and implementation services in all areas of network and information security.
Tuesday, March 03, 2009
Algorhyme
A graph more lovely than a tree.
A tree whose crucial property
Is loop-free connectivity.
A tree which must be sure to span
So packets can reach every LAN.
First the Root must be selected
By ID it is elected.
Least cost paths from Root are traced
In the tree these paths are placed.
A mesh is made by folks like me.
Then bridges find a spanning tree.
by Radia Perlman (creator Spanning Tree Protocol / STP)
Saturday, February 28, 2009
Unblocking Google Talk Contact
This topic would sound absurd, but it really isn’t, so keep on reading :) Have you ever blocked a contact in Google Talk? Well, recently a friend of mine was annoying me a lot. I even warned him not to disturb, but he kept on bugging me, so in the end the only choice I had was to block him. After block, I worked in peace but the next day I felt sorry for what I have done and wanted to unblock him back. But to my surprise, there was no way I can unblock him from Google Talk itself.
I know, this is very weird, but when I blocked him, Google Talk blocked and deleted him from my list. In the end, I did found how to get the contact unblocked back. In thsi post, I’ll tell you how to unblock contacts.
Note: After reading the above paragraphs, please don’t try blocking anyone just for the sake of trying. If you block, and cannot unblock afterwards, I’m not responsible for that. Read on further to learn how to unblock contacts. Here I’ll be using sizzled.test@gmail.com as a sample. I have blocked this contact through my Google Talk, and now want to unblock it.
1. After blocking, you’ll notice that the contact entry in your Google Talk has been permanently deleted. Even if you try searching from the search bar, you won’t find him.
2. Open you Gmail inbox, and wait for the Google Talk module to load in the left sidebar. Then type the user id/email of the contact in it’s search bar whom you blocked and want to unblock. Then point to it’s Profile link, and press the big Chat button.
(click the image to enlarge)
3. It will show the contact as offline (doesn’t matter if the contact is really online or offline). Try typing anything in the chat box. I wrote hello, and got a message above saying: You cannot send a message to a blocked contact.
4. Press the Options button now, and click Unblock [contact name].
5. Contact unblocked! :)
See, I told you that unblocking is a little tricky. If there’s any other method, let me know below.
Courtesy from :
http://www.sizzledcore.com/2007/10/11/how-to-unblock-contacts-in-google-talk/
Monday, February 23, 2009
Why BGP MPLS VPNs?
We need VPNs because enterprises need private connectivity, and they need that over a shared infrastructure to minimize their costs.
"Why do we need MPLS?"
This is because MPLS offers a good infrastructure for converged networks. Rather than using passwords, it offers hierarchy, data privacy, traffic engineering, and differentiated services.
"Why do we need BGP?"
We need BGP because it offers a common framework for providing all VPN types--Layer 2 VPNs, IP VPNs, and VPLS. In addition, it can do auto-discovery, VPN label exchange, and interprovider and carrier-to-carrier VPNs.
Why do we need all these kinds of VPNs?
We need Layer 2 VPNs because of their legacy; they are there and have been for a long time.
We need IP VPNs because traffic is increasingly all IP, and any-to-any connectivity has its benefits. Moreover, outsourcing routing can be a big cost saver.And we need VPLS, as this is an exciting new service that takes advantage of an exciting new medium, Ethernet.