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Apache Error-notes


Error log levels Level Description emerg Emergencies (system unstable) alert Alerts to act on immediately crit Critical conditions error Error messages warn Warning messages notice Normal but significant conditions info Informational Pattern match "333" at POST_PAYLOAD. The equivalent to the TransferLog usage described above looks like this:CustomLog /var/www/logs/access_log customThe explicit naming of the log format helps us avoid mistakes. To support Apache 2, I have slightly improved the error_log_spread.pl utility script, adding a -c switch to force a copy of the logs to be stored on a local filesystem. Check This Out

Adding Stunnel on top of that solves the authentication and confidentiality problems. It resulted in almost 300 MB of raw logs. The mod_log_sql module comes with a utility for doing this export.Though I am not quite convinced this is a good solution for all uses, I am intrigued by the possibility of To specify the audit log file and start audit logging, add the following to your configuration:SecAuditEngine On SecAuditLog /var/www/logs/audit_logAfter the installation and configuration, you will be able to log the contents http://books.gigatux.nl/mirror/apachesecurity/0596007248/apachesc-chp-8-sect-1.html

Apache Custom Error Page

The log processing software must be able to handle the case where this information is unavailable.We use the new log format together with a conditional logging directive to avoid having bogus For more information, refer to fork() failures. [error] client denied by server configuration: /path This message is issued when IHS has mapped an incoming request to the filesystem, but IHS has If the backend server uses an old RSAWithMD5 certificate over TLS1.2, the IHS proxy must opt-in to supporting this signature algorithm: # Permit old signature algorithms SSLAttributeSet proxy:245 "GSK_TLS_SIGALG_RSA_WITH_MD5,GSK_TLS_SIGALG_RSA_WITH_SHA1,GSK_TLS_SIGALG_RSA_WITH_SHA224,GSK_TLS_SIGALG_RSA_WITH_SHA256,GSK_TLS_SIGALG_RSA_WITH_SHA384,GSK_TLS_SIGALG_RSA_WITH_SHA512,GSK_TLS_SIGALG_ECDSA_WITH_SHA224,GSK_TLS_SIGALG_ECDSA_WITH_SHA256,GSK_TLS_SIGALG_ECDSA_WITH_SHA384,GSK_TLS_SIGALG_ECDSA_WITH_SHA512" BUFF # Pattern match "333" at POST_PAYLOAD.

Syslog logging A syslog-based log centralization system is already in place. It does that by having a special log file where requests are logged twice: once at the beginning and once at the end. If the necessary proxy modules are already loaded and the proxy connections are https, apply one of the following fixes: IBM HTTP Server PK07831 or later IBM HTTP Server 6.0: Apache 404 Error Apache's error-logging API avoids these problems by providing module writers with two functions, ap_log_rerror() and ap_log_error(), both of which write nicely formatted error messages to the error log.

For each application, you should do the following:Determine (from the documentation, or by talking to the programmers) what logs the application produces.Classify logs according to the material they contain. Apache Errordocument These headers can be logged with %{x_sessionid}o and %{x_username}o, respectively.header("x_sessionid: $sessionid"); header("x_username: $username");You will not be able to send a warning from the application using response headers though. For instance, a Perl ErrorDocument script might include the following: ...
print "Content-type: text/html\n";
printf "Status: %s Condition Intercepted\n", $ENV{"REDIRECT_STATUS"};
... When Ikeyman (or gsk7cmd/gsk7capicmd) as bundled with IHS are used, the tools enforce that you load a complete certificate chain starting with a self-signed cert and terminating in your personal cert.

mod_security already introduces buffering into the request processing but for different reasons (security). Apache 404 Redirect If the %{note}n format string is used, the contents of the note will be written to the log. This is necessary because error logs are often needed there on the server for diagnostic purposes. Add the target IP address (%A) to the access log format so that the IP address used by the client on the failing request can be seen.

Apache Errordocument

Syslog-NG introduces reliable logging via TCP, which is nonstandard but does the job when Syslog-NG is used on all servers. mod_security-time3 The response has been generated and is about to be sent to the client.These measurements are useful when used in a custom log together with information provided by the mod_logio Apache Custom Error Page I prefer not to use TransferLog, and instead use the CustomLog directive (which forces me to explicitly define the log format).CustomLog The real power comes from using the CustomLog directive. Ssl0208e: Ssl Handshake Failed, Certificate Validation Error This message can also be seen with some levels of IBM HTTP Server when SSL is used for the proxy connection, and an error occurs setting up the connection.

SSL0200E is issues for SSL handshake errors that do not have a more specific error code associated with them. http://apexintsoft.com/apache-error/apache-errordocument-413.php This might help you differentiate between a few different type of 400 responses. KDB files imported from other formats will not typically have a default. The advantage of having the logs in the database is you can use ad-hoc queries to inspect the data. Apache Error Codes

Home IT Admin CXOs For U & Me How-Tos Basics Buzz Submit Tips Subscribe to Print Edition Magazine Feedback Latest in Open Source Write For Us Contact Us The Complete Magazine Apache 2 adds the Referer information to 404 responses noted in the error log. HTTP status code usage in response to application events Event Status code Prevented hack attempt 400 Failed login attempt 401 User is denied access to a resource or an action is this contact form Behavior Configuration Custom Error Responses and Redirects Comments Behavior Old Behavior NCSA httpd 1.3 would return some boring old error/problem message which would often be meaningless to the user, and would

For ap_log_error(), it is the server_rec, ordinarily obtained from r->server. Apache Custom 500 Error Page For example, configuring PHP to send errors to the Apache error log (described in Chapter 3) removes one thing from the TODO list. They are often verbose and may contain passwords and credit card numbers.Implement log rotation.

If that's not always possible, the application can trickle updates back, so the browser knows something is still happening. (How to do that is beyond the scope of IHS support.) Another

Wrap the text with quotes ("). In the application code, send out the session identifier and the username, using headers x_sessionid and x_username. Each authorization module only authenticates based on its own knowledge. Error Document Htaccess LogFormat This directive specifies the format of the access log file and is known as Common Log Format (CLF).

There is no need to specify the time period. Below is an example of an individual audit log entry, where mod_security denied the request because a pattern “333” was detected in the request body. (“333” is not a real attack You can decipher the log format using the symbol table available at Apache website. navigate here When using IBM HTTP Server 2.0.42 or 2.0.47, cumulative e-fix PQ94086 or later must be applied.

If after another interval the child process still does not exit, then the parent process forcefully brings down the child by sending the SIGKILL signal to the child process. The combination of errno and errno2 explain the problem.

UNIX System Services Messages and Codes describes all errno and errno2 values. With the Apache process model, this can turn into a lot of connections.Another drawback is that you can create a central bottleneck out of the database logging server. This is a common error when the client closes the connection before the handshake has completed.

See this suexec how-to for more information. Your goal here is to determine whether to contact the module author (for a third-party module) or the Apache developers at [email protected] (for standard modules). There is a way to get more informational error messages using the mechanism of custom logging. Standard file naming conventions apply here; a relative filename will be assumed to be located in the server main folder.

The recommended solution in either case is to remove the ScoreBoardFile directive and restart. If Apache were to rotate the log files, it would have to create new file descriptors, and a mechanism would have to exist for children to “reopen” the logs.Some of the To unsubscribe, e-mail: users-unsubscribe [at] httpd " from the digest: users-digest-unsubscribe [at] httpd For additional commands, e-mail: users-help [at] httpd --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server