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Enterprise Ready Server™ FAQ


Is Covalent Enterprise Ready Server available worldwide?

I'm running Windows, but I don't see it on the list of supported platforms. What do I do?

How does Enterprise Ready Server benefit a Java user?

What are Apache JServ and Jakarta Tomcat?

Why are those important to have for your site?

What is the DAV module?

What is mod_perl?

How does Enterprise Ready Server work with the MySQL database management system?

TLS support is mentioned for Covalent SSL. What is TLS support, and what are the benefits?

Is Covalent SSL based on mod_ssl?

Does Covalent SSL support Global Server IDs?

Is a trusted third party the same thing as a Certificate Authority?

Are all Certificate Authorities the same?

Does each virtual host need a separate certificate?

Why should I pay money to get a digital certificate for my server?

How can I get a digital certificate?

What Certificate Authorities does Covalent support?
Does ERS FTP allow files to be transferred securely?
Does ERS FTP encrypt the data channel or the command channel?
Does ERS FTP support Implicit or Explicit SSL?
What is Implicit SSL?
What is Explicit SSL?
What is the advantage of transfering files via FTP rather than HTTP?
How does ERS FTP provide additional security?
How does ERS FTP increase integration with my existing infrastructure?
How does ERS FTP improve performance?
What FTP clients will work with ERS FTP's SSL capabilities?


Is Covalent Enterprise Ready Server available worldwide?
Yes, except in those countries that are subject to U.S. export controls such as Iran, Iraq, Libya, Syria, Sudan, North Korea, and Cuba.
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I'm running Windows, but I don't see it on the list of supported platforms. What do I do?
Another version of Enterprise Ready Server is available, Enterprise Ready Server Version 2.0, that supports Windows 2000 and NT. All other features and specs are essentially the same as Enterprise Ready Server Version 2.1.
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How does Enterprise Ready Server benefit a Java user?
You have the option to install Apache JServ or Jakarta Tomcat when you install the Enterprise Ready Server. Apache JServ contains the JavaServer Development Kit and Apache's Java Servlet engine. Jakarta Tomcat includes the Sun Java 2 Standard edition (J2SE). Install either one of these modules and your Web server is Java ready.
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What are Apache JServ and Jakarta Tomcat?
JServ is the Apache Group's initial implementation of a Java servlet engine, and Tomcat is the second, enhanced version.

  JServ Tomcat
Servlet API 2.0 yes  
Servlet API 2.2   yes
Written in Java for portability yes yes
Operates separate from server for stability yes yes
Integrated load balancing yes yes
Servlets may be separated into different logical containers to ease administration yes yes
MD5 based connection authentication yes yes
Java server pages As ext modules 1.1
Works with Apache 1.3.x yes yes
Works with Apache 2.x   yes

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Why are those important to have for your site?
If you want to run JavaServer Pages or servlets on your Web site, you need a servlet engine.
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What is the DAV module?
The DAV module implements the standard WebDAV protocol, allowing distributed Web authoring tools to interact with the Apache Web server. If your company is an ISP, and you would like to give your customers a way to update the content on their site without giving them access to your server, DAV is a structured way to manage content through the Web server, rather than the standard FTP protocol to upload and download files.
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What is mod_perl?
Mod_perl (written by a Covalent employee) is one of the most widely used languages for CGI scripts. Mod_perl improves the performance of Perl CGIs, allowing Perl programmers to enhance the Apache Web server by making it possible for Apache to understand modules written in Perl.
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How does Enterprise Ready Server work with the MySQL database management system?
Covalent Enterprise Ready Server provides PHP with MySQL support. Contact Covalent Support if you require further details.
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TLS support is mentioned for Covalent SSL. What is TLS support, and what are the benefits?
Transport Layer Security (TLS) is the third incarnation of Secure Socket Layer (SSL) protocol. Since Covalent SSL supports both SSL and TLS, you can support a wider variety of secure connections.
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Is Covalent SSL based on mod_ssl?
Yes, but the module's value is that it provides ease of management, installation, and support, and is compatible with hardware accelerators from Rainbow and nCipher.
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Does Covalent SSL support Global Server IDs?
Yes. The Covalent SSL module supports the use of Global Server IDs (GSID), which upgrade standard 40-bit browsers to use full 128-bit security. GSID server certificates are issued to those organizations which meet U.S. government criteria.
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Is a trusted third party the same thing as a Certificate Authority?
Yes, a Certificate Authority (CA) is a trusted third party that certifies specific claims about public keys.
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Are all Certificate Authorities the same?
No. Well-established companies such as VeriSign, Equifax, Thawte, GTE Cybertrust, and Entrust are regarded as the most commonly trusted CAs. If your certificate is signed by a relatively unknown company, such as "Joe's Trucking," your customers may not trust your Web site's reliability.
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Does each virtual host need a separate certificate?
Yes, usually. Browsers verify that the server name in the server's digital certificate matches the server name in the URL being accessed. If they do not match, it may indicate a security problem, so the browser will warn the user.

Some Web hosting sites have worked around this by getting one certificate for the main site, and serving all secure Web pages from that site. In most cases, this is harmless; however, it may be disconcerting to users who are expecting a secure transaction with one site, but are presented with a certificate for a different site.

So if you want to use virtual hosts with Covalent SSL, it's best to have a certificate for each virtual host serving secure pages. Covalent SSL fully supports per-virtual-host certificates.
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Why should I pay money to get a digital certificate for my server?
While your digital certificate can be issued by any Certificate Authority (CA), most Web browsers contain a list of trusted CAs, such as VeriSign or GTE CyberTrust. For example, if viewers go to a Web site that has a certificate issued by "Slick Rick's Speedy Certificate Authority," they will be asked if they wish to accept that CA as valid. Not knowing who Slick Rick is, they may decline.
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How can I get a digital certificate?
Use the Covalent SSL Certificate and Key Management Tool to generate a Certificate Signing Request (CSR). Submit the CSR to the CA of your choice for signing.
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What Certificate Authorities does Covalent support?
Covalent SSL supports almost all CAs, and has relationships with VeriSign, Thawte, Entrust, and Equifax.
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Does ERS FTP allow files to be transferred securely?
Yes. Covalent SSL provides 168-bit encryption, and is compatible with both SSL and TLS (Transport Layer Security, the third incarnation of Secure Socket Layer (SSL) protocol), in order to support a wider variety of secure connections.
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Does ERS FTP encrypt the data channel or the command channel?
Both. Covalent Enterprise FTP Server supports encryption of user IDs, passwords, and FTP commands as well as the data that is being transferred.
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Does ERS FTP support Implicit or Explicit SSL?
ERS FTP provides two methods of implementing SSL: Implicit SSL and Explicit SSL. The decision to use Implicit SSL or Explicit SSL is a policy choice dictated by the enterprise. ERS FTP provides support for both.
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What is Implicit SSL?
Administrators select Implicit SSL if they require FTP clients to be "SSL enabled." With Implicit SSL, the socket is setup immediately for secure communication and no clear text is passed between the client and server. These servers usually run on port 990. With this mode of operation, only clients that support SSL will be permitted access. Also no AUTH command is needed when using Implicit SSL, since all control and data connections are secure.
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What is Explicit SSL?
Administrators implement Explicit SSL when they want to provide access to a mixture of FTP clients. With Explicit SSL, the user connects like standard FTP (i.e., without any security required). When a user requests sensitive data, the server can then require the client to upgrade to a secure connection. The advantage of Explicit SSL is that SSL is not required of the client, so older clients will be able to access the server.
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What is the advantage of transferring files via FTP rather than HTTP?
With bandwidth management and data flow control, FTP is the most efficient and reliable protocol to transfer large files over a TCP/IP network. FTP is simple to implement, reliable, and commonly available.
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How does ERS FTP provide additional security?
Covalent Enterprise FTP Server takes advantage of the filtering capabilities of Apache 2.0 to enable FTP to be used with SSL. Both FTP and SSL are simply modules within the Apache 2.0 framework, and the ability of Apache 2.0 to cascade filters allows FTP to incorporate SSL. This enables IDs and passwords to be encrypted, as well as encryption of the transmitted data itself. And since SSL supports digital certificates, so, then, does FTP. Along the same lines, you can enforce client authorization on a per request basis.
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How does ERS FTP increase integration with my existing infrastructure?
Securing FTP transmissions have typically involved cumbersome workarounds that increase infrastructure complexity. Because Covalent Enterprise FTP is incorporated within the same Apache server that is serving HTTP, workarounds and FTP-dedicated infrastructure elements can be eliminated.

And because Covalent Enterprise FTP is incorporated within the same Apache server that is serving HTTP, the same configuration syntax can be shared for both FTP and HTTP, for example the same LDAP directory can be used to authentication users requesting Web pages and files.
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How does ERS FTP improve performance?
It can take advantage of the performance-tuning capabilities of the underlying Apache 2.0 structure. You can choose the balance between performance and scalability by picking the desired Apache processing module (pre-fork, threaded, hybrid). Requests are handled from a pool of workers instead of starting a process for each request.
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What FTP clients will work with ERS FTP's SSL capabilities?
The clients in the following list have been tested by Covalent. Please check back periodically for updates.

  bsdftpd-ssl (http://bsdftpd-ssl.sc.ru/)
CuteFTP PRO 2.0 (http://www.globalscape.com/products/cuteftppro/index.asp)
Glub Tech Secure FTP (http://www.glub.com/products/secureftp)
WS_FTP Pro (http://www.ipswitch.com/Products/WS_FTP/index.html)
FTP Voyager (http://www.ftpvoyager.com/)
LFTP (http://lftp.yar.ru/)

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Apache Geronimo, now a fully certified J2EE platform, is competitive with other J2EE application servers and should be considered by customers when choosing a J2EE solution...This move by Covalent is comforting and promising. Expert commercial support is extremely important to the future of the Geronimo platform.

Richard Monson-Haefel
Senior Analyst, The Burton Group and co-founder of the Apache Geronimo project





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