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On one of my two sle11 machines i had a java exception which i could not explain. java.lang.IllegalStateException: No Java compiler available org.apache.jasper.JspCompilationContext.createCompiler(JspCompilationContext.java:229) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:581) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.mule.galaxy.web.ThreadLocalCacheFilter.doFilter(ThreadLocalCacheFilter.java:27) [...] # rpm -qa tomcat6 tomcat6-6.0.18-20.35.36.1 Oracle Java JDK 1.6.0_27 After i compared both, i’ve found some missing links on the second one. # ln -s [...]

If you getting errors like this one $ /path/to/program /usr/lib/libcrypto.so.0.9.8: no version information available you need a libcrypto.so and a libssl.so with version information. Here are some information about the problem. openssl has evolved to a very important library in Linux distribution. A lot of cryptographic applications link to it including system libraries like pam [...]

Some linux distribution are shiped without a config for the catalina.out (Tomcat application server) $ cat /etc/logrotate.d/tomcat /var/log/tomcat/base/catalina.out { compress copytruncate create 644 tomcat tomcat rotate 30 size 4M } The catalina.out will be rotated after 4 mb and stored for 30 days (/var/log/tomcat/base/catalina.out.1; /var/log/tomcat/base/catalina.out.2.gz and so on)