Installing and Administering Internet Services

192 Chapter4
Installing and Administering sendmail
Security
Disabling Privacy Options
You can now disable the ETRN and VERB privacy options by using the
noetrn and noverb flags:
• PrivacyOptions=noetrn
The noetrn flag will disable the SMTP ETRN command, enabling
sendmail to process its queue in a synchronous mode.
LinkedAliasFileInWritableDir Allows an alias file that is a link in a writable
directory.
LinkedClassFileInWritableDir Allows class files that are links in writable
directories.
LinkedForwardFileInWritableDir Allows .forward files that are links in writable
directories.
LinkedIncludeFileInWritableDir Allows :include: files that are links
LinkedMapInWritableDir Allows map files that are links in writable
directories.
LinkedServiceSwitchFileInWritable
Dir
Allows the service switch file to be a link even if
the directory is writable.
FileDeliveryToHardLink Allows delivery to files that are hard links.
FileDeliveryToSymLink Allows delivery to files that are symbolic links.
WriteMapToHardLink Allows writes to maps that are hard links.
WriteMapToSymLink Allows writes to maps that are symbolic links.
WriteStatsToHardLink Allows the status file to be a hard link.
WritesStatsToSymLink Allows the status file to be a symbolic link.
RunProgramInUnsafeDirPath Allows sendmail to run programs that are in
writable directories.
RunWritableProgram Allows sendmail to run programs that are group-
or world-writable.
Table 4-3 option_values for DontBlameSendmail
Option Value Description