Wireless Modem Router: How to secure UNIX based web server

How to secure UNIX based web server
In the growing popularity of computer networks of today, computer security requires not only combat computer viruses, but also to improve the system's ability to resist hackers have illegally entered, but also to improve the confidentiality of remote data transmission and avoid the transmission on the way the victim of unlawful theft. Therefore, I need to know the vulnerabilities and more than that, I want to know the security measures for UNIX based web server.
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#2
Old 16-02-2010
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Vulnerabilities UNIX base web server
According to me, first you must know the vulnerabilities of UNIX based web server.
1. In the Web server, you do not allow visits to the secret files, directories, or important data.
2. From the remote users to send information to the server, especially when something like credit cards, half-way by lawless elements from the illegal interception.
3. Web server itself, there is some loopholes allow some people to invade the host system to the detriment of some important data, and even cause the system to a standstill.
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#3
Old 16-02-2010
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re: How to secure UNIX based web server
Limited to Web server, open an account on a regular basis to delete some off the process of users. For the Web server to open the account, change the password length and on a regular basis to make demands, prevent theft. As far as possible FTP, MAIL and other servers with separate, remove ftp, send mail, ftp, NIS, NFS, finger, net stat and some other related applications.
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#4
Old 16-02-2010
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re: How to secure UNIX based web server
On the Web server, such as removing a number of really do not have a SHELL-like interpreter that when in your CGI program is useless to the PERL, the respect as far as possible PERL interpreter in the system removed. Regularly check the server logs in the log files, analysis of all suspicious incidents. In the error log appears rm, login, / bin / perl, / bin / sh and other like records, your server may have been a number of unauthorized users invasion.
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#5
Old 16-02-2010
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re: How to secure UNIX based web server
Set up the system files on a Web server, the permissions and attributes people access to the document that can be assigned to a common group, such as the WWW, and only the allocation of its read-only rights. Ownership of all the HTML files WWW group, managed by the Web Administrator WWW group. Configuration files for the Web-only Web administrator has write rights.
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#6
Old 16-02-2010
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re: How to secure UNIX based web server
Some Web server, the Web document directory and FTP directory is referred to in the same directory, it should be careful not to FTP a directory with CGI-BIN to specify a directory. This is to prevent some users via FTP to upload the like, such as PERL or SH procedures, and use Web-CGI-BIN to implement, resulting in adverse consequences.
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