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/

Why BGP MPLS VPNs?

"Why do we need 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.

Debugging my fault

I had taken a sat at JNCIP exam before. Its a remote lab, telnet-ing to physical lab in Amsterdam.
Its an 8-hour practical exam excluding one hour lunch time, start from 10 AM to 7 PM including one hour lunch time. I had build an ISP consisting of seven M-series routers and multiple EBGP neighbors. All 7 router's IGP, BGP route reflector and EBGP neighbors had been reach up. And then i jump into IGP/BGP customization task and routing policy, but i saw the clock already 5 PM, i hurried up finish my task, and by 7 PM i feel i had meet all the requirements but i did not had time to check and verified the configuration.

15 days after the exam, Gary Hausser, who is proctoring me send me an email, he said i failed the exam and i lost big points in IGP/BGP customization task and routing policy. I feel very sad to had receiving email like that. :( i realized that i had no enough time to verified again my configuration at that area. Its because i didn't wisely allocate my time wisely, the pitfall was my battle against unfamiliar interface at beginning of exam taking 3 hour to conquered them.

Debugging my fault
After receiving email from Gary, i check again configuration my m7i's logical router, yeah i found a lot of mistake because i didn't re-read the requirements, i just follow my assumption not following what the juniper want.
Now, i preparing myself to taking another exam by trying bunch of exam scenario and a lot of what if question...

Wish me luck okay :D

show version and haiku

IS-IS screams,
BGP peers are flapping:
I want my mommy!

IS-IS sleeps.
BGP peers are quiet.
Something must be wrong.

Look, mama, no hands!
Only one finger typing.
Easy: commit scripts.

TTL down one
the end nearer with each hop
little packet, poof.

3am; darkness;
Maintenance window closing.
Safety net: rollback.

Weeks of studying,
Days of lab exercises:
JNCIE.

Juniper babies
The next generation starts
Gotta get more sleep

General Networking Troubleshooting Tips

• You must know what is "NORMAL" for your system
• Start with a visual inspection
• A divide-and-conquer approach is ideal when multiple fault can lead to a common symptom
• Failure hypotheses should be testable-be definitive about parameter of the test
• Please do not blinded by subjectivity-open your eyes and mind
• Layered troubleshooting approach

modern communication networks are modeled around architecture layer

matching a symptom to the root-caused layer is a critical step in rapid diagnosis and restoration

identifying the specific fault within the root-cause layer is icing on the cake!