This article describes how to verify the integrity of a NetScaler Firmware file and to confirm that the checksum file is not tampered or corrupted in Network transfer. Use one of the following two Checksum:

• sha2 for NetScaler Release 10.1 and later
• MD5 for earlier NetScaler releases

Instructions

Complete one of the following two procedures:

• Using sha2
• Using MD5

Using sha2

To verify the integrity of the NetScaler Firmware file using sha2 Checksum, complete the following procedure:

1. Click NetScaler ADC  to go to the download page for the Firmware.

   Every NetScaler ADC Firmware release 10.1 contains an sha2 Checksum file as shown in the following screen shot.
   

2. Click Get sha2 Checksum.

   A window that displays the sha2 values for all files associated with the NetScaler build appears as shown in the following screen shot.
   

3. Click Download.

4. Accept any license agreements from Citrix.

5. Issue the following commands to create a separate directory in the NetScaler appliance for each Firmware build.

   Cd /var/nsinstall
   Mkdir 10.1.126.12.nc

   This step avoids creating duplicate files across multiple Firmware versions.

6. Use WinSCP or any other secure file copy utility to copy the downloaded file (in Step 3) to /var/nsinstall/10.1.126.12.nc directory in the NetScaler appliance.

7. Issue the following command to verify the integrity of the downloaded file.

   sha256 build-10.1-126.12_nc.tgz

8. Compare the hash value output with the hash value in Step 2.

   SHA256 (build-10.1-126.12_nc.tgz) = a5cead92210a79001b4947d494b092620f4d227f16e6a1e5f35bafd7848747e4

   Citrix Web Site: build-10.1-126.12_nc.tgz
   a5cead92210a79001b4947d494b092620f4d227f16e6a1e5f35bafd7848747e4

   If the numbers match, integrity of NetScaler Firmware file is correct.

Using MD5

To verify the integrity of the NetScaler Firmware file, complete the following procedure:

1. Click NetScaler ADC  to go to the download page for the Firmware.

   Every NetScaler ADC Firmware release earlier to version 10.1 contains an MD5 Checksum file as shown in the following screen shot.
   

2. Click Get MD5 Checksum.

   A window that displays the MD5 values for all files associated with the NetScaler build appears as shown in the following screen shot.
   

3. Click Download.

4. Accept any license agreements from Citrix.

5. Issue the following commands to create a separate directory in the NetScaler appliance for each Firmware build.

   Cd /var/nsinstall
   Mkdir 10.0.75.7.nc

   This step avoids creating duplicate files across multiple Firmware versions.

6. Using WinSCP or any other secure file copy utility, copy the downloaded file (in Step 3) to /var/nsinstall/ns-10.0-75.7.nc directory in the NetScaler appliance.

7. Issue the following command to verify the integrity of the downloaded file.

   md5 build-10.0-75.7_nc.tgz

8. Compare the hash value output with the hash value in Step 2.

   MD5 (build-10.0-75.7_nc.tgz) =fd6d2090ea0ffc7962f3a5fb1c7c25b6

   Citrix Web Site: build-10.0-75.7_nc.tgz
   fd6d2090ea0ffc7962f3a5fb1c7c25b6

   If the numbers match, integrity of NetScaler Firmware file is correct.

http://www.citrix.com/downloads/netscaler-adc/firmware.html