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Running Cinnamon on Linux Mint 12


I have been using Linux Mint since Mint 8 and I love it.  I run Linux Mint 13 in the office and it covers all of my day to day needs.  It is fast, slick and generally a pleasure to use  because it just works.  However, recently there are some small issues with the new desktop which has made me think about tweaking it a bit.

You see when Mint changed the default desktop to Gnome 3 with Mint Gnome Shell Extensions (MGSE) from Gnome 2 I was as sceptical as the rest.  Overtime you get used to the new interface and begin to appreciate the finer points (e.g attaching applications to the favourites bar and showing all open windows at once to name two) but I still miss the ‘traditional’ interface of Gnome 2.  So this is where Cinnamon comes in.  The Mint developers decided that Gnome 3 isn’t really their bag so they have started a project called Cinnamon which uses Gnome 3 technology but looks more like the Gnome 2 desktop.  And yes you can run the current stable release on Mint 12!!

Open up a terminal and type:

sudo apt-get install cinnamon

When prompted enter your password.  When the software has been downloaded and installed you need to logout.  When you see the login screen click on settings and choose Cinnamon from the choice of desktop environments and voila you are now running Cinnamon!!

Word of warning here.  Although Cinnamon is classed as a stable release it is still undergoing development so it might still be rusty around the edges (I have had no issues so far though).  With Cinnamon you lose the top panel (never did like being able to load applications from the top or bottom) but retain the ability to view all open windows on one screen.  You still get the traditional Menu button which allows you to launch you applications and desktop effects come as standard.

So far my first impressions of Cinnamon are positive.  Don’t take my word for it go and have a play.

About the Author

Hi I am Chris the owner of ComTech. I provide IT Support, Laptop repairs and Computer repairs to both personal and business clients in and around Stirling. For a list of what I can offer you why not visit my website www.comtech247.net where you will find my blog, testimonials, services and much more.  Start supporting a local business today so I can start supporting you.

If you found this blog useful then why not sign up to my RSS Feed for news, tutorials, views and general techie stuff!!

How to set up a DHCP server on Linux Mint 12


Recently I did a tutorial on setting up a Linux dhcp server using the dhcp3-server package.  With the arrival of Linux Mint 12 the configuration is slightly different so I shall revise the tutorial to show this.

First thing to do is to give your server a static ip address. For details on how to do this read this.

Now we need to install the dhcp package.  Open up a terminal and type:

sudo apt-get install isc-dhcp-server

There are two main files /etc/default/isc-dhcp-server and /etc/dhcp/dhcpd.conf which we will need to configure so lets take the first.  Open up a terminal and using your favourite text editor type:

sudo gedit /etc/default/isc-dhcp-server

You should get the following:

———————————————————————————————–

# Defaults for dhcp initscript
# sourced by /etc/init.d/dhcp
# installed at /etc/default/isc-dhcp-server by the maintainer scripts

#
# This is a POSIX shell fragment
#

# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
# Separate multiple interfaces with spaces, e.g. “eth0 eth1”.
INTERFACES=”eth0″

————————————————————————————————–

Replace eth0 above with the name of your network interface that you want the server to lease addresses on.  Onto the next file.  Open up a terminal and type:

sudo gedit /etc/dhcp/dhcpd.conf

which should give you the output below.

————————————————————————————————-

#
# Sample configuration file for ISC dhcpd for Debian
#
# Attention: If /etc/ltsp/dhcpd.conf exists, that will be used as
# configuration file instead of this file.
#
#

# The ddns-updates-style parameter controls whether or not the server will
# attempt to do a DNS update when a lease is confirmed. We default to the
# behavior of the version 2 packages (‘none’, since DHCP v2 didn’t
# have support for DDNS.)
ddns-update-style none;

# option definitions common to all supported networks…
option domain-name “example.org”;
option domain-name-servers ns1.example.org, ns2.example.org;

option domain-name “comtech.com”;
default-lease-time 600;
max-lease-time 7200;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
#authoritative;

# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;

# No service will be given on this subnet, but declaring it helps the
# DHCP server to understand the network topology.

#subnet 10.152.187.0 netmask 255.255.255.0 {
#}

# This is a very basic subnet declaration.

subnet 10.0.0.0 netmask 255.255.255.0 {
range 10.0.0.150 10.0.0.253;
option routers 10.0.0.2;
option subnet-mask 255.255.255.0;

option broadcast-address 10.0.0.254;
option domain-name-servers 10.0.0.1, 10.0.0.2;

option ntp-servers 10.0.0.1;
option netbios-name-servers 10.0.0.1;
option netbios-node-type 8;
}

# option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org;

#}

# This declaration allows BOOTP clients to get dynamic addresses,
# which we don’t really recommend.

#subnet 10.254.239.32 netmask 255.255.255.224 {
# range dynamic-bootp 10.254.239.40 10.254.239.60;
# option broadcast-address 10.254.239.31;
# option routers rtr-239-32-1.example.org;
#}

# A slightly different configuration for an internal subnet.
#subnet 10.5.5.0 netmask 255.255.255.224 {
# range 10.5.5.26 10.5.5.30;
# option domain-name-servers ns1.internal.example.org;
# option domain-name “internal.example.org”;
# option routers 10.5.5.1;
# option broadcast-address 10.5.5.31;
# default-lease-time 600;
# max-lease-time 7200;
#}

# Hosts which require special configuration options can be listed in
# host statements. If no address is specified, the address will be
# allocated dynamically (if possible), but the host-specific information
# will still come from the host declaration.

#host passacaglia {
# hardware ethernet 0:0:c0:5d:bd:95;
# filename “vmunix.passacaglia”;
# server-name “toccata.fugue.com”;
#}

# Fixed IP addresses can also be specified for hosts. These addresses
# should not also be listed as being available for dynamic assignment.
# Hosts for which fixed IP addresses have been specified can boot using
# BOOTP or DHCP. Hosts for which no fixed address is specified can only
# be booted with DHCP, unless there is an address range on the subnet
# to which a BOOTP client is connected which has the dynamic-bootp flag
# set.
#host fantasia {
# hardware ethernet 08:00:07:26:c0:a5;
# fixed-address fantasia.fugue.com;
#}

# You can declare a class of clients and then do address allocation
# based on that. The example below shows a case where all clients
# in a certain class get addresses on the 10.17.224/24 subnet, and all
# other clients get addresses on the 10.0.29/24 subnet.

#class “foo” {
# match if substring (option vendor-class-identifier, 0, 4) = “SUNW”;
#}

#shared-network 224-29 {
# subnet 10.17.224.0 netmask 255.255.255.0 {
# option routers rtr-224.example.org;
# }
# subnet 10.0.29.0 netmask 255.255.255.0 {
# option routers rtr-29.example.org;
# }
# pool {
# allow members of “foo”;
# range 10.17.224.10 10.17.224.250;
# }
# pool {
# deny members of “foo”;
# range 10.0.29.10 10.0.29.230;
# }
#}

————————————————————————————————

This needs a little bit of explaining.

1. Everything in bold needs adding to the file.  Adjust your settings according to your network requirements.

2. The option domain name is your dns zone name.  For example mine is set to comtech.com.

3. Range should be the range of ip addresses that you want the server to give out to clients.

Now restart the dhcp service by typing:

sudo service isc-dhcp-server restart

Thats it!! Your dhcp server should be running, however it is best to check.  Open up a terminal and type:

sudo netstat -uap

which will show you the following information:

————————————————————————————————

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

udp 0 0 *:55827 *:* 916/avahi-daemon: r
udp 0 0 chris-desktop.lo:domain *:* 1273/named
udp 0 0 chris-desktop:domain *:* 1273/named
udp 0 0 *:bootps *:* 4525/dhcpd
udp 0 0 *:17500 *:* 1768/dropbox
udp 0 0 *:54407 *:* 4539/VirtualBox
udp 0 0 10.0.0.255:netbios-ns *:* 1016/nmbd
udp 0 0 chris-deskto:netbios-ns *:* 1016/nmbd
udp 0 0 *:netbios-ns *:* 1016/nmbd
udp 0 0 10.0.0.255:netbios-dgm *:* 1016/nmbd
udp 0 0 chris-deskt:netbios-dgm *:* 1016/nmbd
udp 0 0 *:netbios-dgm *:* 1016/nmbd
udp 0 0 *:mdns *:* 916/avahi-daemon: r
udp6 0 0 [::]:domain [::]:* 1273/named
udp6 0 0 [::]:51853 [::]:* 916/avahi-daemon: r
udp6 0 0 [::]:mdns [::]:* 916/avahi-daemon: r

————————————————————————————————

This shows that the dhcp daemon is working.

About the Author

Hi I am Chris the owner of ComTech. I provide IT Support, Laptop repairs and Computer repairs to both personal and business clients in and around Stirling. For a list of what I can offer you why not visit my website www.comtech247.net where you will find my blog, testimonials, services and much more.  Start supporting a local business today so I can start supporting you.

If you found this blog useful then why not sign up to my RSS Feed for news, tutorials, views and general techie stuff!!

 

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