Vyacheslav

Solution apparmor=”DENIED” operation=”open” profile=”/usr/sbin/mysqld”

Once optimizing one of the servers, I executed the command:

dmesg

I will give an example of installing the Unbound caching DNS server.

You can install Unbound in Ubuntu with the command:

In this article I will give an example of setting up port security on D-Link switches.

With Port Security, the ports on D-Link switches can limit the number of devices allowed to connect to the network.
Continue reading “Configuring Port Security on D-Link Switches”

I will give an example of updating the BIOS P80 on the HP ProLiant DL320e Gen8 v2 server.

Update is necessary through iLO4.

AS – Autonomic System.
BGP – Border Gateway Protocol.

You can install quagga in Ubuntu/Debian with the following command:

Once on the server with Quagga after adding several thousand network interfaces, I noticed a message in the logs /var/log/zebra.log:

ZEBRA: netlink-listen recvmsg overrun: No buffer space available

I will give examples of setting logging for nginx.

To change the log settings, open the nginx configuration file in any text editor:

Below is an example of some commands for viewing information about a computer in Linux.

I will give examples of commands for viewing information about a network adapter in Linux.

Once I noticed problems with a link on different Mimosa B5.
The link rose and fell at 1000Mbps every 5-10 seconds, respectively, the customers had a degradation of traffic, pings fell out.
Continue reading “Solving the problem with a link to Mimosa B5”