B.2. Warning Messages
When executing GnuPG commands, you may see the following message:
gpg: Warning: using insecure memory!
This warning is because non-root users can not lock memory pages. If
users could lock memory pages, they could perform out-of-memory Denial
of Service (DoS) attacks; thus, it is a possible security problem. For
details, refer to https://www.gnupg.org/(en)/documentation/faqs.html#q6.1.
You might also see the following message:
gpg: WARNING: unsafe permissions on configuration file "/home/username/.gnupg/gpg.conf"
This message is shown if the file permissions of your configuration file
allows others to read it. If you see this warning, it is recommended
that you execute the following command to change the file permissions:
chmod 600 ~/.gnupg/gpg.conf
Another common warning messages is as follows:
gpg: WARNING: unsafe enclosing directory permissions on configuration file
This message is shown if the file permissions of the directory that
contains the configuration file allows others to read its contents. If
you see this warning, it is recommended that you execute the following
command to change the file permissions:
If you upgraded from a previous version of GnuPG, you might see the
gpg: /home/username/.gnupg/gpg.conf:82: deprecated option "honor-http-proxy"
gpg: please use "keyserver-options honor-http-proxy" instead
This warning is because your ~/.gnupg/gpg.conf file
contains the line:
Version 1.0.7 and higher prefers a different syntax. Change the line
to the following: