Posts Tagged “SSL Certificate”

I was tasked with configuring VSFTPD to allow SFTP or FTPES (FTP over explicit TLS/SSL) tonight for a client. The configuration already had regular FTP working which I verified using FileZilla as an FTP client. I was able to login and transfer files in both directions to and from the server. Next I verified that SFTP worked without issue and I was able to also transfer files in both directions using SFTP. For FTPES I had to make some changes and once I did make the changes I was still getting an error when attempting to do a directory listing using FileZilla. Below I describe the initial changes I made to vsftpd.conf, the errors I received attempting to connect with FTPES, and the way I resolved the problem.
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There are many tricks or little configuration items you can use to make your WordPress powered site more secure than it comes by the default install. One of those items is to require the login to happen over HTTPS and require that all WordPress admin traffic takes place over HTTPS as well. I personally also use a plugin called WP Block Admin to only allow users with certain credentials access to wp-admin so consider looking into that as well if you have areas of your site that are not in the admin section that require users to login like a forum or to leave comments.

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Recently when installing a second SSL certificate for a secondary IP address on a Linux server running Litespeed as the web server I received the below error. The error at first made me think that maybe the key file still required a password even though I knew I had generated the key file not requiring a pass phrase. The error below will show up in your error.log file located in /var/lsws/logs/error.log.

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You may receive the below error in FireFox when attempting to add a SSL certificate security exception. If you do follow the below steps to be able to actually add the security exception.

Error:
server.example.com:443 uses an invalid security certificate.
The certificate is not trusted because it is self signed.
(Error code: sec_error_untrusted_issuer)

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First off you can add multiple IP’s to each SliceHost VPS. Adding the secondary IP address to a SliceHost Virtual Private Server (VPS) is easy. Open the SliceManager control panel and click the Help tab to open a support ticket. In the ticket state that you want a secondary IP, the justification for it, and that you understand it will cost $2/month. Typically support responds very quickly and will configure the secondary IP address for you.

Typical justification would be that you are running a web server and need to have multiple SSL certificates.

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