Linux System Administration Recipes A Problem-Solution Approach

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CHAPTER 7 ■ WORKING WITH APACHEThen check that the certificate corresponds to the private key. The output of these two commandsshould match:openssl x509 -noout -modulus -in my.domain.org.pem | openssl sha1openssl rsa -noout -modulus -in my.domain.org.key | openssl sha1Now install my.domain.org.key and my.domain.org.crt into /etc/apache2/ssl, and set thepermissions correctly:cp my.domain.org.key my.domain.org.crt /etc/apache2/sslchown root:root my.domain.org.key; chmod og-r my.domain.org.keychown root:root my.domain.org.crt; chmod a+r my.domain.org.crtIt’s important to make sure that the server key is readable only by root, while the server certificateshould be world-readable but owned and writeable only by root. (If you already did this when yougenerated the certificate and key, you shouldn’t need those last two lines.)7-4. Compiling and Configuring Apache with SSLOnce you’ve set up your SSL certificate as in the previous recipe, the next step is to get SSL working inApache. The best bet for this is to use the package provided for your distro. With Debian/Ubuntu,Apache comes with the SSL module available, but it’s not automatically enabled. To enable it, use this:a2enmod ssl/etc/init.d/apache2 restartThe generic way to do this is to add this line to your /etc/apache2/apache2.conf or /etc/apache2/httpd.conf file:Include /etc/apache2/mod_ssl.confYou may need to edit this to give the correct location for mod_ssl.conf in your setup. Then restartApache2.For configuration, the following instructions assume that you want to run both a secure server (onport 443) and a regular server (on port 80). First, you need to configure the server to listen on both ports.In Debian/Ubuntu, edit /etc/apache2/ports.conf or directly edit /etc/apache2/apache2.conf to includethe lines:Listen 80Listen 443Next, edit /etc/apache2/sites-enabled/yoursite to use the SSL settings. The most maintainableoption is to separate the regular and secure server settings out with VirtualHosts.164Download at WoweBook.Com
CHAPTER 7 ■ WORKING WITH APACHE■ Note Any configuration outside the VirtualHosts sections (such as setting the ServerAdmin) will apply to both(and any other) VirtualHosts.Add the following section to your config file:# =================================================# SSL/TLS settings# =================================================NameVirtualHost *:443DocumentRoot "/local/www/ssl_html"SSLEngine onSSLOptions +StrictRequireSSLRequireSSLSSLProtocol -all +TLSv1 +SSLv3SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUMSSLRandomSeed startup file:/dev/urandom 1024SSLRandomSeed connect file:/dev/urandom 1024SSLSessionCache shm:/usr/local/apache2/logs/ssl_cache_shmSSLSessionCacheTimeout 600SSLCertificateFile /etc/apache2/ssl/server.crtSSLCertificateKeyFile /etc/apache2/ssl/server.keySSLVerifyClient noneSSLProxyEngine offAddType application/x-x509-ca-certAddType application/x-pkcs7-crl.crt.crlSetEnvIf User-Agent ".*MSIE.*" \nokeepalive ssl-unclean-shutdown \downgrade-1.0 force-response-1.0SSLEngine makes the server actually use SSL. DocumentRoot sets the root directory for this virtualhost, so you can entirely separate secure content from regular content. You can then set SSLRequireSSL165Download at WoweBook.Com
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Contents■About the Author .......
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■ CONTENTS3-7. Writing a Nagios P
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■ CONTENTS■Chapter 8: Using the
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■ CONTENTSAbout the Author■Juli
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■ CONTENTSAcknowledgmentsMany tha
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■ CONTENTSIntroductionThis book i
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■ INTRODUCTIONDownloading the Cod
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C H A P T E R 1■ ■ ■Saving Yo
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CHAPTER 1 ■ SAVING YOURSELF EFFOR
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C H A P T E R 2■ ■ ■Centraliz
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CHAPTER 2 ■ CENTRALIZING YOUR NET
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C H A P T E R 3■ ■ ■Monitorin
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CHAPTER 3 ■ MONITORING AND UPDATI
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C H A P T E R 4■ ■ ■Taking Ba
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CHAPTER 4 ■ TAKING BACKUPS AND MA
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CHAPTER 11 ■ TRACKING DOWN BUGSTh
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CHAPTER 11 ■ TRACKING DOWN BUGS01
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CHAPTER 11 ■ TRACKING DOWN BUGS
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CHAPTER 11 ■ TRACKING DOWN BUGSAn
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CHAPTER 11 ■ TRACKING DOWN BUGS#
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C H A P T E R 12■ ■ ■Managing
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CHAPTER 12 ■ MANAGING TIME AND PE
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APPENDIX■ ■ ■Perl TipsSee rec
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APPENDIX ■ PERL TIPS• Date::Par
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APPENDIX ■ PERL TIPSPerl Syntax N
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■ ■ ■Index■Symbols$CDPATH,
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■ INDEXenscript option (printing)
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■ INDEX■NNagiosadding hosts to,
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■ INDEXsyslogcentralized logging
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