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Modifying License Mac on CUCM/CUC/UCCX/

Modify License MAC on CUCM, CUC or UCCX

Do you want to modify the license mac for your Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC) or UCCX? Here is the procedure to modify the license mac.

First and the foremost, you need to have root access to your UC application in order to modify the license mac. In case you have don’t know how to root your UC application, please follow the blog link to do so:

Get Root Access to your UC Application like CUCM, CUC or UCCX:

Get CUCM, Cisco Unity Connection, UCCX Root Access – Click Here

(You can modify the license mac while rooting your UC Application or you can do post rooting as well.)

Modifying the License MAC via SSH or Console:

  1. Login to your UC Application using root account via SSH using applications like Putty or direct via console.
  2. Enter the command “vim /usr/local/bin/base_scripts/LicenseMac.sh” without quotes
  3. Locate the line FinalString= by typing /FinalString= in VIM mode.uccollabing.com
  4. Replace the below by pressing “a” to append:FinalString=’expr substr “$SHA1sum” 1 12′With:

    FinalString=”abcdabcdabcd”¬†

    Original File
    uccollabing.com
    Modified File
    uccollabing.com

  5. Save the file by typing “:wq” without quotesThat’s all! Reboot the VM and you are done!

Note: UC Collabing does not recommend to try and apply it on your production server. This could be illegal and UC Collabing will not be held for any damages that could occur to your system. In case you perform this on your production servers, you may void Cisco contract. This is only for lab and learning purpose!

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Claudio Quiroz Cabello

Electrical Engineer CCNA Collaboration CCNA Voice CCNA R&S. I'm Electrical Engineer and I work like Support Engineer for a Telephony Service Provider Company. Before that I had position like Pre-Sale Engineer about small and medium multivendor telephony solutions. I have 5 years of experience working in Telephony Multivendor Projects. I am also 3 years of experience working in Support and implementation about Cisco Collaboration platforms: UCS server, UCM, Cisco Unity, Presence Server, Jabber, Gateway. Support Community is most useful in finding design, implementation and support tricks and shortcuts that greatly help me in my daily activities. If you need to contact me, please you can writte me.

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Kanishka Singh

CCNA Routing and Switching
Am a technology enthusiast. I work in network support providing support with implementation, maintaining and precisely troubleshooting the infra.
Realm of collaboration makes me want to learn and face new challenges more and more.

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