DNS Resolving to Wrong Production IP internally on the Server

Good day All,

The other day we a had a little issue when client reported that when Pinging from outside its resolving to correct Production IP but when we run Ping from Internally on the Server it showing some other IP, so why is it ?

Couple of things to rule out

1. DNS is resolving properly so its not external issue
2. Is it local host file, so i checked if anyone added the IP address in local host file, but its not.
3. Checked other IP's on the Server and Server was resolving to MGMT IP internally from the Server. So i checked in TCP/IP properties if DNS registration is enabled but its not..

So any ideas to anyone what is the issue? well if anyone guess Binding Order for NIC's then yup that is the right answer

Binding Order place a important role when any application is trying to resolve DNS internally.. it will always PICK the 1st NIC on the top and resolve without going to localhost or DNS Server.

So always make sure that Production NIC is on the top of list

Hope this helps someone!!!!

Income Tax Filing if your Employer already deducted the Taxes

Good day All,

Well this is not technical topic but wanted to help guys as it’s this time of Year and we usually need to file our returns.

Note I am not a Charted Accountant, this is useful for guys who already paid their Taxes through your Employer and just have to file the returns.

Prerequisites before you start:

1.       PAN Number

2.       Form 16 and Form16A of Company

3.       Registered and Login details of Income-tax e-filing website.

https://incometaxindiaefiling.gov.in/e-Filing/UserLogin/LoginHome.html

• Now let’s start Step-by-Step Process to file your returns
• 1.       We have 2 ways to file returns either by downloading an Excel sheet or On-line Filing. I have done both but I think offline mode of Excel sheet is pretty simple, so this article I will go over Offline Mode.
• 2.       Click on the below link and download ITR 1and extract the Excel sheet to a folder.
• https://incometaxindiaefiling.gov.in/e-Filing/Services/DownloadItrLink.html

• 3.       You will see a file called 2015_ITR1_PR1.xls, open it. Please make sure to read the Read Me.txt file to enable Macros, this is very important

• 4.       A pop will show-up, read it… it tells you that anything Red Labels are Mandatory.. see below and say ok

• 5.       You start filling in the details in Income Details Sheet

• 6.       As said Above anything Marked Red are Mandatory so start filling all the details as possible till Row 32

• 7.       Row 41

1.       INCOME FROM SALARY: Open your Form 16 1^st line would be your Gross Salary, look couple of rows below after your HRA and Standard Deductions You will see something called “Income chargeable under the head SALARIES(3-5)” , make a note so that will be your INCOME FROM SALARY

2.       Row 42 Income from One House Property: If  you have Let out then mention it if not just leave it blank.

3.       Row 44 will be Auto Filled

4.       Row 46, 80c Maximum value is 1, 50,000.Open your Form16 and add all the amounts under Section 80C and fill in the field.

5.       Row 47 to 63 if you have anything mentioned in your Form 16 then fill the respective Fields.

6.       Row 65 Taxable Total Income is Auto Filled as below

7.       Row 66 to 78 you don’t have to fill anything just leave as it is

•          8. Now save your Excel sheet and Click on Validate as below

•          9. Sheet Income Details OK.If you see any error, a description will be present asking to correct   it.  
  
   
•          10. Click on TDS Tab Sheet and Fill Row which shows 19 TDS1, as seen below. TAN Number and   Name of the Employer can be found in your Form 16A, Income under Salary would be same Salary you mentioned in Income Details Sheet ROW 41 and Tax Deducted would be amount mentioned under  Tax payable in Form 16

Note: If you have mulitple Form 16, you need to put both the employers 

•         11. Click Save the sheet and Click Validate to make sure Sheet is ok.

•          12. Now go to Taxes Paid and Verification tab and Fill Row 27. Make sure you mention the number of Savings Bank Account you hold and all his details as below

•         13. Now save your sheet and click Validate

•          14. Now Click on Sheet Income Details and Click Calculate Tax ,
  
• 15. It will take a moment to calculate Tax and now if you go at Row 25 Under Refund of Taxes paid and Verification Sheet you will see that it Auto calculated and Value show as Zero(0).

 Note if your Refund is not Zero then either you paid more Tax or Less Tax and need to re-verify everything.

 This was easy.. Click Generate XML and you will see  xml generated in the same location as Excel sheet was opened.

The below is just to remind in case Calculate Tax was not done 

Now login to Income tax e-filing webiste

Click the Submit button a confirmation mail with IRT-1 will be sent to your registered Email ID.

Open the IRT-1 PDF, just double check to make sure everything is ok and take a print and send to Banglore Address given in the same PDF.

Well this was easy, all you need to do is spend like 5 bucks for Stamp and like 30mints of your time :)

Income tax Slab:

Hope this helps someone... till next time have a good day!!!

Smart Link on a c3000 HP Enclosure - Shared uplink set down caused half my ESX host unreachable

Good day All,

Welcome back!!! before i start sharing on the outage and how a small configuration would have avoided the outage we had, just want to share something on how to make sure you are redundant if you ever have to work on c 3000 as all embedded NIC's use only Interconnect module 1 to go out.
Confused see below


c3000:

c7000:

So you guys where you able to differentiate.. if not let me explain... On a Blade lets assume you have 2 Embedded Flex NIC's(LOM ) , so if you need to have redundancy you need 2 Interconnect Modules so that NIC 1 will have all his traffic go through Bay 1 and NIC 2 will have all this traffic go through Bay 2.. well this on a c7000.

Same Scenario on c3000 , both NIC 1 and NIC 2 will use Interconnect Module 1 to go out, so there is no redundancy for Interconnect Modules and also for the NIC's.. So how do you achieve that..
Well you take the help of Mezzanine Cards.. So what you have to do is add in a additional Mezzanine card which will be your additional 2 port NICs and its traffic will go through the Interconnect Module 2. So when you team them you need to make that you are teaming 1 on-board Embedded NIC along with 1 Mezzanine card NIC so that you get NIC's redundancy and also Interconnect Module redundancy.

Question would be then why not go buy a c7000, well cost and also if its small location you can buy 2 c3000 and have them redundancy for say like ESXi farm rather than 1 c7000 right?


Now let me go over the outage we had: We have 2 c3000 Frames and we got 4 ESXi blades on each frame and we have configured or created the Cluster in such way that 2 ESXi host from each Frame are part of each Cluster for Production and NON-Production.We also have created 4 uplink Sets 2 from each Interconnect Modules configured as Active/Active with same VLAN's going through both uplink sets.

The issue we had was Uplink from Interconnect Bay 2 got unlinked on the Switch end  and any VM's which was using that uplink was not communicating to Network ,VMotion link was down too and we unable to VMotion any VM's.

As part of Initial troubleshooting to bring VM's to Network we enabled Smart Link in Virtual Connect , basically what it does is it keeps checking if any UPLink Set is down, if any Link goes down it moves the traffic to other working uplink Set and we didn't had this configured on the Frames..

Steps to enable Smart Link:
1. Log into VC Manager
2. Edit the shared uplink sets, one at a time
3. Edit each of the Associated Networks within the shared uplink set and check the "Smart Link" box and click Apply, do not click Apply on the main shared uplink edit screen until all Associated Networks have been edited
4.After all has been edited click Apply on the main shared
5. Repeat for all shared uplink sets on both enclosures.

the reason for uplink down was some Network changes done and it was reverted back and issue got fixed.. but with this outage we atleast came to realize that Smart link could have save the day and i hope anyone reading this article will go back and check there settings..
I have lot more c3000 and started to do the same..


Hope this helps someone , till next time all have a good day!!!!