I noticed somehow after installing Ubuntu Server 16.04 LTS that when booting the system, the monitor does not display the login and password entry line, and every time the black screen, the system does not respond to keystrokes, and the system has booted and you can connect to it via SSH.
Continue reading “Solving black screen problems in Ubuntu Server 16”Author Archives: Vyacheslav
Solution of the error when opening wp-admin after the update
I noticed somehow when upgrading WordPress to version 4.7 that after the update wp-admin does not open, instead of the admin window there is an empty window and in the address bar of the browser the following address:
Continue reading “Solution of the error when opening wp-admin after the update”View the temperature on the Cisco Catalyst 6500
I will use Cisco Catalyst 6509-E on the test.
To view the temperature of the sensors, connect via the console or telnet for example and execute the command:
Increase the volume of calls in Asterisk
To increase the call volume during calls, you need to add a couple of lines (on which you need to increase the volume) in the /etc/asterisk/extensions.conf file, at the beginning of each dialplan:
Continue reading “Increase the volume of calls in Asterisk”FoxGate S6224-S4 Firmware Update
On the test, I will update the firmware on the FoxGate S6224-S4 switch (R5) with version 7.0.3.1 (R0058.0010).
I noticed that on this version of the firmware on the switch, the Vlan management interface often fell off, and the switch performed its functions, but was unavailable.
Configuring ports on Huawei switches
I will give an example of setting up ports on Huawei switches. For the test, I will execute commands on the Huawei Quidway S2326TP-EI.
Continue reading “Configuring ports on Huawei switches”How to enable Compliance Test on UBNT devices
It was necessary to somehow put the frequency on the AirMAX PowerBeam M5 with firmware 5.6.2 under license, but alas, it is not on the list! The country is chosen Ukraine, after updating the firmware to the newest 5.6.3 frequencies did not appear, they cannot be chosen, although state sells them!
UPD: I note that in the new firmware versions the “Compliance Test” has been renamed to “Licensed”.
Continue reading “How to enable Compliance Test on UBNT devices”NanoStation M2 Firmware Update
Once I updated the Nano Station M2 with firmware 5.5.6 to 5.6.5.
Version 5.6.5 did not immediately become, as there was not enough memory in the device for downloading it, so I first had to upgrade to 5.6.2, and then 5.6.5.
How to change email after registering Certbot (Let’s Encrypt)
One day after installing Certbot, I entered the wrong email address and later notifications from Let’s Encrypt did not go where necessary.
Continue reading “How to change email after registering Certbot (Let’s Encrypt)”How to solve on MacOS “REMOTE HOST IDENTIFICATION HAS CHANGED”
Once I transferred the IP address to another server and after connecting to it via SSH from MacOS I saw a warning and therefore failed to connect:
Continue reading “How to solve on MacOS “REMOTE HOST IDENTIFICATION HAS CHANGED””