Linux – Page 19

Solving the error “mount: unknown filesystem type LVM2_member”

I once executed a command to mount a disk:

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

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):

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).

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:

Configuring FSK in Asterisk to determine phone numbers

To determine the number from analog lines, you need to specify in the context for each Trunk channel Dahdi:

Using the vim text editor

vim is a free powerful text editor based on the vi text editor.

Configuring SIP Trunk in Asterisk from Ukrtelecom

I will give an example of setting up SIP Trunk in Asterisk, that is, Asterisk will be in the role of a SIP client.
From the provider Ukrtelecom received data: number, password and address of the telephony server (sip.ukrtel.net).
SIP number was taken to make multi-channel not an ordinary city number, by forwarding in case of busy lines.
I will configure on a Linux server with a real IP without using NAT, as well as on another with NAT (in the second case, you need to change nat=no to nat=yes and comment out canreinvite).

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