h (include/
sm/conf.h beginning with V8.12).
If you suspect that you need to define SYSTEM5 when porting to a new system, you should
also investigate SYS5SIGNALS and SYS5SETPGRP in sendmail/conf.h (include/sm/conf.h
beginning withV8.12) and sendmail/README. If you are running a precompiled version of
sendmail, you can use the -d0.10 debugging command-line switch(?§15.7.3 on page 543) to
discover whether SYSTEM5 or SYS5SETPGRP is defined (if either appears in the list, it is
defined).
3.4.66 TCPWRAPPERS
Use libwrap.a for connects (V8.8 and above) Tune with confENVDEF
Beginning withV8.8 sendmail, it is possible to use the libwrap.a library to validate
incoming SMTP connections.
* Don??™t just arbitrarily change the size. You must matchit to the buffer size defined by your syslog(3) library
routine.
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
148 | Chapter 3: Tune sendmail with Compile-Time Macros
3.4.67 TLS_NO_RSA
Turn off RSA for STARTTLS (V8.12 and above) Tune with confENVDEF
Beginning withV8.12 sendmail, if you do not want to use the RSA algorithms with
STARTTLS (?§5.3 on page 202), you can turn off those algorithms by specifying this TLS_
NO_RSA compile-time macro:
APPENDDEF(`conf_sendmail_ENVDEF??, `-DTLS_NO_RSA=1??)
One good reason to do this would be if using RSA encryption is illegal in your country.
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