IT Blog

Configuring FTPS in cPanel

I will give an example of setting up FTPS for PureFTPd running on a server with cPanel. For ProFTPD, the setup is almost the same.

Tuning nf_conntrack

In this article I will give an example of optimizing the parameters of nf_conntrack for a high-loaded NAT server.

Solution to Microsoft Word error “Word experienced an error when trying to open the file”

I noticed once when opening a downloaded file in Microsoft Word format the following error:

Word experienced an error trying to open the file. Try these suggestions.
* Check the file permissions for the document or drive.
* Make sure there is sufficient free memory and disk space.
* Open the file with the Text Recovery converter.

cPanel. Solution of the error “dovecot: pop3-login: Disconnected (no auth attempts in 0 secs)”

Recently, Dovecot was automatically updated on one of the servers with cPanel, and the PHP self-recording system stopped importing letters, that is, it could not connect to the mail server, in the log file /var/log/maillog I discovered the following:

IPTables quick setup script

Sometimes it is necessary, for example, to delete all IPTables rules and to add only the necessary, so for convenience, you can specify them in the script, and then execute it.

Disabling site statistics in cPanel

Sometimes it is useful to disable visitor statistics for some frequently visited sites, since there is no point in loading the server by analyzing huge log files and if you can use other statistical tools, such as Goole Analytics, for example.

Email notification when users login to WordPress

Once on several sites, it was necessary to set up sending emails about each user logging into the site.

Dahua IPC-K35 Firmware Update

On the test, I will update the firmware of the IP camera Dahua IPC-K35.

List of network protocols and ports

I will give a small list of some popular network protocols, the ports that they use and their brief description: