Forum Discussion

Anony_Moose_356's avatar
Anony_Moose_356
Icon for Nimbostratus rankNimbostratus
Mar 19, 2018

F5 VPN Broken on Ubuntu 18.04 LTS

Heads up, the Ubuntu package for the F5 VPN is broken under the upcoming Ubuntu 18.04 LTS.   The dependencies are clearly wrong since there has been an ABI change between Qt5.5 (as advertised) and...
18.04
BIG-IP
deb
Secure Web Gateway
security
ubuntu
vpn
NickTurner_2185's avatar
NickTurner_2185
Icon for Nimbostratus rankNimbostratus
Apr 26, 2018

I've just stumbled upon this issue after a user reported Ubuntu 18.04 (officially released today) wasn't working.

 

https://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/related/relnote-supplement-bigip-13-0-1.htmlA710407-1 identifies that QT 5.10.1 has issues and the "workaround" is to "Install Qt version 5.9.0 or lower, and make it the default installation."

 

I've not looked on an Ubuntu installation itself but Google suggests Ubuntu 18.04 runs QT 5.9.1 (maybe 5.9.5) so it's a case of nearly but not quite :(

 

  • miostreams_1604's avatar
    miostreams_1604
    Icon for Nimbostratus rankNimbostratus
    May 01, 2018

    Ubuntu 18.04 uses QT 5.9.5, however after running into this problem, I downgraded to QT 5.9.1 using the Ubuntu 17.10 repos and the problem is resolved. Not the best solution, but there is indeed something going on with QT.

     

  • NickTurner_2185's avatar
    NickTurner_2185
    Icon for Nimbostratus rankNimbostratus
    May 31, 2018

    I've just had an update on this issue from F5 support:

     

    "I discussed this with an escalation engineer who already has a case open with F5 Production development team. As per his case the issue is due to newer distributions of Linux that have QT with hardcoded dependency on OpenSSL. The fix for this bug is that will package Qt with our installation.

     

    What is more, F5 planned to release client 7.1.1 with these fixes in later part of June."

     

    This sounds very promising as, if I've understood correctly, it should resolve QT version related issues across multiple distributions of Linux.

     

Related Content