Normally, the file permissions on cicscli.bin allow only the owner, and group to write to the file, and only the owner to read it. However, a user who has write access to the ⁄var⁄cicscli subdirectory can delete cicscli.bin regardless of the file permissions.
If however you use the -b option (see Starting client tracing), every process is given read access to the trace files.
chmod 755 ⁄var⁄cicscliallows users to see files in ⁄var⁄cicscli subdirectory but not to create, delete, or move them.
The Client daemon prevents you from starting tracing if an unauthorized user has deleted and recreated cicscli.bin.