No DAHDI modules on the system. Not starting

You need to retrieve the correct kernel-devel for the kernel of linux you are running, and remake DAHDI from source

SSH onto the machine and run:
uname -r

Note the kernel version.

then, google for kernel-devel (kernel version)
find a suitable download source (i.e. from rpm.pbone.net)

then on the machine
rpm -ivh ftp://ftp.is.co.za/mirror/centos/6.5/updates/x86_64/Packages/kernel-devel-2.6.32-431.1.2.0.1.el6.x86_64.rpm  Click here for more details..

Contact Details:
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

Case Study – Router Upgrade – from 8Mbps to 200Mbps

We were approached by a client in central London to help with their internet connection. Although they had upgraded to Virgin Media’s 200MB/s DOCSIS3 service from a standard ADSL connection, they were still getting poor broadband speeds.

Old Hardware

As soon as we visited the site, the problem became apparent. They were using a Netgear FVS318v3 – this is a very out of date unit, that has a maximum throughput of 11.5Mbps. See the technical specifications here for a blast from the past: fvs318v3. Click here for more details..

Contact Details:
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

Join a wireless network before login

Export the existing wifi setup
​netsh wlan export profile %SSIDName% folder=c:temp

XML files of the existing connections will be exported to c:temp. Find the one you want all users to access. You need to modify the to false and enter the wireless key.

You will end up with something like this:

<?xml version="1.0"?>
<WLANProfile xmlns="http://www.microsoft.com/networking/WLAN/profile/v1">
<name>Best Network</name>
<SSIDConfig>
<SSID>
<hex>42657374204E6574776F726B</hex>
<name>Best Network</name>
</SSID>
</SSIDConfig>
<connectionType>ESS</connectionType>
<connectionMode>auto</connectionMode>
<MSM>
<security>
<authEncryption>
<authentication>WPA2PSK</authentication>
<encryption>AES</encryption>
<useOneX>false</useOneX>
</authEncryption>
<sharedKey>  Click here for more details..

Contact Details:
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

Manually set FreePBX timezone

Check here for the correct timezone: http://en.wikipedia.org/wiki/List_of_tz_database_time_zones​
SSH into the server
Run the following, with the relevant TZ database timezone. In this example, Europe/London
​ln -sf /usr/share/zoneinfo/Europe/London /etc/localtime
Then, edit /ect/sysconfig/clock
nano /etc/sysconfig/clock
Change the line to the correct TZ timezone:
ZONE="Europe/London"   Click here for more details..

Contact Details:
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

FreePBX – convert WAV call recordings to MP3

One of our customers recently reported an interesting issue. They were running FreePBX on a machine with a very small amount of hard drive space. Usually, this would not be an issue, as FreePBX can be installed easily onto a small drive, even less than 10GB (I have a moment of reflection now, thinking that actually 10GB is massive!!)

In any case, when you start recording calls on a system, the free space is quickly eaten up.

Within FreePBX, there is no way to set the call recording to MP3, and as a result, large WAV files are created.

The solution? Convert them to MP3, and update the CDR database to reflect the changed filenames – so that if you wish to download the call recordings from the web UI, the links are correct.
Click here for more details..

Contact Details..
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

Using Ansible to Update MikroTik Routers

Administering a large installed base of MikroTik routers can be difficult. You can use The Dude, but this has not been updated in some time, and MikroTik have not made their long term intentions clear in relation to the continued development of the software.

We use Ansible internally to remotely configure machines, so it seemed a natural choice to update the firmware of the MikroTik routers we have installed.

Firstly, you need to generate an appropriate DSA SSH key. Refer to: MikroTik Wiki for full instructions.

From the source server, test the SSH connection works:
ssh admin-ssh@remoteserver.com

If you do not immediately connect, you may need to add the appropriate identity file to ~/.ssh/config
IdentityFile ~/.ssh/mikrotik_dsa
Click here for more details..

Contact Details..
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 08007879258
Web: https://www.jaytag.co.uk/

Remote IT Support London - Remote Support Services - Jaytag, London

What are the benefits of using Jaytag’s remote IT support service?

The biggest benefit is its ease of use and efficiency. If you have a problem or request arise you would most likely want it solved as soon as possible.

Using remote support we can start fixing your IT issues instantly. As soon as you download and run our remote support program, we can connect – and see what you see on your PC screen.

In many cases we can completely diagnose and fully repair your software problems and network problems via remote support, which will save time – we will not need to travel out to you. It will also save you money – we don’t charge a call-out fee for remote support. You only pay for the time needed for the work to be completed. Click here for more details....

Contact Details:
Jaytag Computer Limited
Maddison House, 226 High Street
Croydon, Surrey, CR9 1DF
Phone: 0800 7879 258
Web: http://www.jaytag.co.uk/