Vyacheslav

How to reset Linux root password via GRUB

I will give an example of changing the root password for systems similar to Ubuntu, CentOS, Fedora:

How to reset Linux root password via Live CD

If it is not possible to use the GRUB bootloader as I described in this article – How to reset the root password in Linux via GRUB, you will have to run a Live CD, for example Ubuntu Desktop, at startup select “Try Ubuntu …” instead of installing, and then it will start.
How to make bootable flash drives I described here – How to create a bootable flash drive

ABillS. External connection diagnostics.

Thanks to the external connection diagnostics, you can execute various commands directly from the ABillS interface (a button is added on the client page near the online session). In this article I will give some examples.

Resolving the error when starting the MC “Unable to create directory” /home/user/.local/share/mc “”

I noticed once the following error when starting MC (Midnight Commander):

Assigning admins in AMXmodX

AMXmodX administrators are added at the end of the \cstrike\addons\amxmodx\configs\users.ini file.

It can be assigned both by IP address and by nickname.

RAID Creation During Ubuntu Installation

On the test, when installing Ubuntu Server 14.04 LTS, we will create software RAID1.
I note that when creating RAID will be used mdadm automatically.
I will connect two identical disks to the server (similarly, you can try to create RAID on a virtual machine, for example, created in VirtualBox).

IPhone 5s Repair – Blue Screen

Once I changed the battery in the iPhone 5s and at the same time decided to remove dust on the camera, for this I had to unscrew the protective plate, disconnect the display and camera cables.
And not with care, I mixed up the four bolts that held the plate, but they are of different sizes!
Below the photo, the first bolt does not magnetize, the rest are magnetized.

Repair iPhone 5s – rear camera does not work

Once I dropped a new iPhone 5s from a knee-height onto a tile, the phone was in a protective bumper, as soon as I lifted it, I noticed that the flashlight button was not active. I rebooted it, the button became active and the flashlight worked, at that moment I even shot a video, but the next day when the camera was turned on, a black screen was displayed when the camera was turned on.
For some time, I managed to switch to the front camera, but the rear one did not work.
Sometimes you could see the warning “Flash is Disabled – The iPhone needs to cool down before you can use the flash.”, But the phone was not used before and naturally could not overheat.
Sometimes also after a couple of reboots, the rear camera could start working and then again there was a black screen.

Configuring TDM410P with Asterisk

In the test, I connected a Chinese TDM410P board with four FXO ports (red) to the PCI slot of the turned off Ubuntu server.
For convenience, immediately switch to the root user:

General TFTP Phonebook for IP Phones

It took one day to make a shared phone book for a large number of Grandstream IP phones.