Available Languages: The suEXEC feature provides Apache users the ability to run CGI and SSI programs under user IDs different from the user ID of the calling web server. Zico On The Block Rar. Normally, when a CGI or SSI program executes, it runs as the same user who is running the web server.
Used properly, this feature can reduce considerably the security risks involved with allowing users to develop and run private CGI or SSI programs. However, if suEXEC is improperly configured, it can cause any number of problems and possibly create new holes in your computer's security. If you aren't familiar with managing setuid root programs and the security issues they present, we highly recommend that you not consider using suEXEC. Before jumping head-first into this document, you should be aware of the assumptions made on the part of the Apache Group and this document. First, it is assumed that you are using a UNIX derivative operating system that is capable of setuid and setgid operations. All command examples are given in this regard.
How To Set Up Mass Virtualhosting With Apache2 + mod_rewrite + mod_userdir + mod_suexec On CentOS 5.3 This howto shows one method of doing mass v. More Install Mod Suexec Centos videos. Mod_suexec.c: Compatibility: Available in Apache 2.0 and later: Summary. This module, in combination with the suexec support program allows CGI scripts to run as a. I am trying to RPM build apache 2.4.18 with mod_http2 on CentOS 7. Enable-suexec --with-suexec. Which shows you the manual steps to install it if.
Other platforms, if they are capable of supporting suEXEC, may differ in their configuration. Second, it is assumed you are familiar with some basic concepts of your computer's security and its administration. This involves an understanding of setuid/setgid operations and the various effects they may have on your system and its level of security. Third, it is assumed that you are using an unmodified version of suEXEC code. All code for suEXEC has been carefully scrutinized and tested by the developers as well as numerous beta testers. Every precaution has been taken to ensure a simple yet solidly safe base of code.
Altering this code can cause unexpected problems and new security risks. It is highly recommended you not alter the suEXEC code unless you are well versed in the particulars of security programming and are willing to share your work with the Apache Group for consideration. Fourth, and last, it has been the decision of the Apache Group to NOT make suEXEC part of the default installation of Apache. To this end, suEXEC configuration requires of the administrator careful attention to details.
After due consideration has been given to the various settings for suEXEC, the administrator may install suEXEC through normal installation methods. The values for these settings need to be carefully determined and specified by the administrator to properly maintain system security during the use of suEXEC functionality. It is through this detailed process that the Apache Group hopes to limit suEXEC installation only to those who are careful and determined enough to use it.
Still with us? Let's move on! Before we begin configuring and installing suEXEC, we will first discuss the security model you are about to implement. By doing so, you may better understand what exactly is going on inside suEXEC and what precautions are taken to ensure your system's security. SuEXEC is based on a setuid 'wrapper' program that is called by the main Apache web server.
This wrapper is called when an HTTP request is made for a CGI or SSI program that the administrator has designated to run as a userid other than that of the main server. When such a request is made, Apache provides the suEXEC wrapper with the program's name and the user and group IDs under which the program is to execute.
The wrapper then employs the following process to determine success or failure -- if any one of these conditions fail, the program logs the failure and exits with an error, otherwise it will continue: • Is the user executing this wrapper a valid user of this system? This is to ensure that the user executing the wrapper is truly a user of the system. • Was the wrapper called with the proper number of arguments? The wrapper will only execute if it is given the proper number of arguments. The proper argument format is known to the Apache web server.
If the wrapper is not receiving the proper number of arguments, it is either being hacked, or there is something wrong with the suEXEC portion of your Apache binary. • Is this valid user allowed to run the wrapper? Is this user the user allowed to run this wrapper? Only one user (the Apache user) is allowed to execute this program. • Does the target CGI or SSI program have an unsafe hierarchical reference? Does the target CGI or SSI program's path contain a leading '/' or have a '.' These are not allowed; the target CGI/SSI program must reside within suEXEC's document root (see --with-suexec-docroot= DIR below).