Author Archives: Vyacheslav

Solution of the iLO error “HTTP SSL_ERROR_BAD_MAC_ALERT”

I noticed the following error when opening the iLO web interface in the browser:

Error establishing secure connection
An error occurred while connecting to 172.16.1.2. The SSL node reported an incorrect message authentication code. Error code: SSL_ERROR_BAD_MAC_ALERT
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

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Updating iLO 3 firmware on HP servers

Once I set up iLO on servers and noticed that when opening an interface in the browser, an SSL error occurs and the iLO web interface does not open.

See how to temporarily solve this error in my article – Solution of the iLO error “HTTP SSL_ERROR_BAD_MAC_ALERT”.

For example, I will use HP ProLiant DL380 G7 with old firmware iLO 3 1.10 (Jul 26 2010)

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Changing CPU Scaling Governor on Linux

Through “Scaling Governor”, you can choose the optimal CPU frequency control scheme, which affects power consumption and performance.

On highly loaded access servers, acquaintances had cases of server hangup during “ondemand”, although I did not have such cases, but still I recommend changing it to “performance”.
On laptops and lightly loaded servers, you can leave “ondemand” to save energy.

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How did I make a request to Hetzner to replace the disk in the raid

Already quite often I wrote in Hetzner to replace disks in a raid and in this article I will describe one of the cases.

And so, one morning, after a disk dropped out of a raid, mdadm sent me a message by email.
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