How do i edit the different files (dhcpd.conf). Please remember im a total noob 
Personally I use ‘Text Editor’ right click for options .
Ok i can open and edit the files, but i cant save them.
File - save should do it , then close the editor. the original copy will be appended by the ~ character. saves renaming files all the time 
I dont have permission to write to the directory or file. How do i cange the permissions, have tried to rightclick on the files but everything is greyed out.
I did everthing in ‘root’ , this will give you the permissions you need , but has its drawbacks , when you create the node folders and scripts (eg. ws001) they aquire ‘root’ permissions and will not run on the nodes , so I changed those files permissions to ‘nfsanybody’
how do i go about doing that?
‘root’ is the same as windows administrator so you can change anything - you got the idea with right click on the file ,( under root all is possible ), as with MAJOC and DT , I dont want to give too much away as it detracts from the learning experience. frustrating as hell if you havent got a software background , but ultimately rewarding.
I disagree, the learning experience is just frustrating 
For LTSP Ubuntu is brainless on the DHCP, I did nothing to to get onboard PXE nodes to login.
Now how do log in as admin, i never set a login or password( i think) other than my root psw. mayby a reinstall is in order. unless…?
just want to get crunching whith tis last one, wich may multipy;)
Normaly when you install you have ‘root’ which has the highest level permissions and a user created in the final steps of the install after first boot from hard drive, this can normally only modify its own files.
Most of your creating/editing would normally be done when logged into root , but this then gives some user files root permissions that cannot be excecuted by a user especially LTSP nodes, you will need to right click and use the properties box to give ownership back - tis fairly intuitive .