Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Oreoluwa's avatar
Oreoluwa
Icon for Altocumulus rankAltocumulus
Dec 18, 2019

AUTOMATIC F5 BACKUP TO SFTP SERVER

Hi Guys,   I just deployed an iapp for automated backup and sending to a SFTP server.   The issue is that when i generate a private key on the F5 cLI and input it into the column for it on t...
application delivery
big-ip
iApps
cjunior's avatar
cjunior
Icon for Nacreous rankNacreous
Dec 18, 2019

Hi,

Usually this kind of error is because you don't trust the key on sftp server.

Did you sent the pub key to your authorized_keys on sftp server?

It's just a little shot.

 

Regards.

  • Oreoluwa's avatar
    Oreoluwa
    Icon for Altocumulus rankAltocumulus
    Dec 18, 2019

    Do you mean after generating the private key on the F5 then input the key on the authorized_keys directory on the SFTP server?

    • cjunior's avatar
      cjunior
      Icon for Nacreous rankNacreous
      Dec 18, 2019

      Yes, but the public key, not private that you fill on iApp.

      Are you generanting a RSA key pair, right?

      Regards.

    • Oreoluwa's avatar
      Oreoluwa
      Icon for Altocumulus rankAltocumulus
      Dec 18, 2019

      yes i am generating a RSA key pair.

  • Oreoluwa's avatar
    Oreoluwa
    Icon for Altocumulus rankAltocumulus
    Dec 18, 2019

    Yes i ran the command to send the public key to the authorized_keys on the sftp server.

     

    But when i run that command, i get the error: exec request failed on channel 0.

     

     

    • cjunior's avatar
      cjunior
      Icon for Nacreous rankNacreous
      Dec 19, 2019

      Hello,

      What do you see when running on command line to debug?

      Did you tried this before?

      ex;

      sftp -vvv -i <id_rsa_file> <username>@<destination>

      Kind regards