4P Development

2006-08-27T17:52:00.000+01:00

Samba
1.setup samba file server

sudo apt-get install samba

sudo /etc/init.d/samba stop

sudo mv /etc/samba/smb.conf /etc/samba/smb.cnf.template

sudo touch /etc/samba/smb.conf

sudo vi /etc/samba/smb.conf

then add the following code to the file

[global]
; General server settings
netbios name = YOUR_HOSTNAME ##(steveserver)
server string =
workgroup = YOUR_WORKGROUP ##(HQ)
announce version = 5.0
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192

passdb backend = tdbsam
security = user
null passwords = true
username map = /etc/samba/smbusers
name resolve order = hosts wins bcast

wins support = yes

printing = CUPS
printcap name = CUPS

syslog = 1
syslog only = yes

; NOTE: If you need access to the user home directories uncomment the
; lines below and adjust the settings to your hearts content.
;[homes]
;valid users = %S
;create mode = 0600
;directory mode = 0755
;browseable = no
;read only = no
;veto files = /*.{*}/.*/mail/bin/

; NOTE: Only needed if you run samba as a primary domain controller.
; Not needed as this config doesn't cover that matter.
;[netlogon]
;path = /var/lib/samba/netlogon
;admin users = Administrator
;valid users = %U
;read only = no

; NOTE: Again - only needed if you're running a primary domain controller.
;[Profiles]
;path = /var/lib/samba/profiles
;valid users = %U
;create mode = 0600
;directory mode = 0700
;writeable = yes
;browseable = no

; NOTE: Inside this place you may build a printer driver repository for
; Windows - I'll cover this topic in another HOWTO.
[print$]
path = /var/lib/samba/printers
browseable = yes
guest ok = yes
read only = yes
write list = root
create mask = 0664
directory mask = 0775

[printers]
path = /tmp
printable = yes
guest ok = yes
browseable = no

; Uncomment if you need to share your CD-/DVD-ROM Drive
;[DVD-ROM Drive]
;path = /media/cdrom
;browseable = yes
;read only = yes
;guest ok = yes

[MyFiles]
path = /media/samba/
browseable = yes
read only = no
guest ok = no
create mask = 0644
directory mask = 0755
force user = YOUR_USERNAME ##(steve)
force group = YOUR_USERGROUP ##(steve)

man smb.conf for details on config
sudo /etc/init.d/samba [stop] [start] [restart] to control daemons.cw

Setting up Webdav server

2006-08-25T14:32:00.001+01:00

Learning Linux

Things to do and learn

learning vi

to edit a file: - sudo vi [filepath/file]

to insert text into the file:- i

to end editing press esc

to save and exit:- :wq

to exit no save:- :q

scrolling:- h j k l

there is an entire section on SAMBA in the Running Linux 4^th Edition.pdf

Useful Commandline Tools in Ubuntu Server 6.06

cp – copy file – for multiple files delimit each filename with a space

rm – remove files

ls – lists contents of directory in color

using tab key for tool searching - example: ../:fi [tab] [tab]

returns everything with fi at the start

apt-cache – for package management – can be used to list all packages, i.e:-

sudo apt-cache pkgnames

nano – q&d text editor

ifconfig – networking tool

telnet – connection tool

man – manuals for applications

iptables – use to configure rules for networking firewall

useradd – add user

userdel – delete user

usermod – Modify a user account

find – a tool for finding files

more/less tools for viewing the contents of files at command line

i.e:- /: more [filename]

ps – shows running processes

$ ls /usr/bin > ~/Binaries :output goes to file 'Binaries'

$ noclobber=1

$ ls /bin >> ~/Binaries – the >> appends data to a file rather than overwrite.

You will find the technique of output redirection very useful when you are running a utility

many times and saving the output for troubleshooting.

sudo shutdown -r now restarts the machine

Interesting directories

/usr/share

/proc/ is a dynamically generated directory, generated by the kernel on startup that lists processes/hardware info etc

cat /proc/meminfo lists memory data

cat /proc/ioports list of I/O addresses that are in use

mod_dav module directory:- /usr/lib/apache2/modules/mod_dav_fs.so

mod_dav configuration directory:- /etc/apache2/mods-available

Setting up for mod_dav calendar server

According to tutorial this is how you configure the mod_dav module, need to restart apache to initiate the mod.

Added the following lines to /etc/apache2/httpd.conf

(then changed that to /apache2.conf)

LoadModule dav_module /usr/lib/apache2/modules/mod_dav.so

LoadModule dav_fs_module /usr/lib/apache2/modules/mod_dav_fs.so

Dav On

DavLockDB /usr/local/apache2/var/DavLock

ERRORS

This is currently returning an error when the kernel starts up and apache is loaded :-

the first module loads fine dav_module but the second module fails dav_fs_module

Samba

1.setup samba file server

need to modify smb.conf in /etc/samba

man smb.conf for details on config

How to assign Hostname to local machine with dynamic IP using free DynDNS service

Read #General Notes
Read #How to add extra repositories
Register free Dynamic DNS at http://www.dyndns.com/services/dns/dyndns

sudo apt-get install ipcheck
gksudo gedit /etc/ppp/ip-up.d/dyndns_update.sh

Insert the following lines into the new file

 #!/bin/sh

USERNAME=myusername
PASSWORD=mypassword
HOSTNAME=myhostname.dyndns.org

cd /root/
if [ -f /root/ipcheck.dat ]; then
 ipcheck -r checkip.dyndns.org:8245 $USERNAME $PASSWORD $HOSTNAME
else
 ipcheck --makedat -r checkip.dyndns.org:8245 $USERNAME $PASSWORD $HOSTNAME
fi

Save the edited file

sudo chmod 700 /etc/ppp/ip-up.d/dyndns_update.sh
sudo sh /etc/ppp/ip-up.d/dyndns_update.sh

Apache Configuration

Apache2.2 on Ubuntu (Debian)

directory where web pages are stored (DocumentRoot)

/var/www

directory for apache configuration

/etc/apache2

Setting up Sagem 800 Modem (tiscali) drivers under linux

$ sudo apt-get install build-essential linux-headers-'u-name -r'
where u-name -r  is the kernel version (type at prompt)
sudo lsmod | grep eagle  to check if eagle-usb is installed, if so it needs removing
:- sudo modprobe -r eagle-usb

remove modules:-
sudo rm /lib/modules/'uname -r'/kernel/drivers/usb/atm/usbatm.ko
sudo rm /lib/modules/'uname -r'/kernel/drivers/usb/net/eagle/eagle-usb.ko

http://download.gna.org/ueagleatm/ueagle-atm-1.3.tar.gz to download latest drivers for ueagle-atm

$ cd ~
$ tar -xvzf ueagle-atm-1.3.tar.gz
$ cd ueagle-atm-1.3
$ sudo make
$ sudo make install

http://eagle-usb.org/ueagle-atm/non-free/ to download firmware

$ tar xzf ueagle-data-1.1.tar.gz
$ cd ueagle-data-1.1

then:-

sudo mkdir /lib/firmware/ueagle-atm
sudo cp -a * /lib/firmware/ueagle-atm
sudo modprobe ueagle-atm
dmesg|grep ueagle

Create a file called ueagle-atm in /etc/ppp/peers, containing the following :

Code:

user "myusername"
plugin pppoatm.so 0.38

noipdefault
usepeerdns
defaultroute
persist
noauth

then:-

sudo gedit /etc/ppp/peers/ueagle-atm
sudo gedit /etc/ppp/chap-secrets

replace "myusername"  "*"  "mypassword"  "*"

with ISP account details

then:-

sudo modprobe pppoatm

pon ueagle-atm

to check connection

ifconfig

ERRORS

got this error on start up after updating headers

*Loading hardware drivers...

[42949423.670000] scb2_flash: flash probe failed!

[42949423.710000] piix4_smbus 0000:00:0f.0: Illegal interrupt configuration (or code out of date)!

How to setup a LoJack system for your laptop

What: Quote from Wikipedia: "LoJack is an aftermarket vehicle tracking system that allows cars to be tracked by police after being stolen. The manufacturer claims a 90% recovery rate. The name "LoJack" is a play on the word "hijack," meaning the theft of a vehicle through force."

Why: If your laptop is ever stolen and connected to the Internet. You will be able to find out from what IP it connects to the Internet from and contact the authorities.

Best I can get

2006-08-17T09:49:00.000+01:00

Well, I've got a solution although I'm not really happy that its the best technique i could use, it involves positioning and controlling the z-index of particular divs:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"><head> <meta
http-equiv="content-type"
content="text/html; charset=iso-8859-1" /> <title>4Productions
Competition Services</title><meta name="generator"
content="amaya 9.51, see http://www.w3.org/Amaya/" />

<style
type="text/css">
.page { display: inline;
margin-top: 0%;
padding-top: 0%;
top: 0%;
}

div { }

.floatleft { float: left;
width: 600px;
margin-top: 0%;
padding-top: 0%;
top: 0%;
}

.leftblock { width: 200px;
margin-top: 0%;
padding-top: 0%;
top: 0%;
position: relative;
z-index: 1;
}

.centreblock { width: 400px;
position: relative;
z-index: 1;
}

.leftblock, .centreblock { float: left;
background-color: red;
}

.rightblock { background-color: green;
margin-left: 0px;
margin-right: 0px;
width: 100%;
margin-top: 0%;
padding-top: 0%;
position: absolute;
}

.tackleft { float: left;
}

.tackright { float: left;
}

.leftblock, .centreblock, .rightblock { height: 5cm;
}

.footer { background-color: rgb(204, 255, 255);
}

body { margin-top: 0%;
padding-top: 0%;
top: 0%;
}

</style></head>
<body><div class="page">
<div class="floatleft"><div class="leftblock">
<div class="logo"><h1>LOGO</h1>
</div><div class="translogo">
logo</div>
</div><div class="centreblock">
centre</div>
</div><div class="tackleft"></div>
<div class="rightblock">right</div><div
class="tackright"></div>
<div class="footer">footer</div>
</div></body></html>

I relatively positioned the left and central block and increased their z-index by +1 while absolutely positioning the 'rightblock' div and setting its width to 100%.

CSS

2006-08-16T15:50:00.001+01:00

Today i've been trying to work out layout options using CSS and div tags to create the illusion of table-like design for our competitions page, the layout idea is inspired by http://www.siemens-foundation.org/, as usual played around with it for ages, came up with a complex approach that didn't work and then read a few articles for inspiration. The problem was getting the right-hand div to float inline with the other two (3 column layout) while flowing to the edge of the page without defaulting to the next line: the solution is quite simple:-

.leftblock{ width: 200px;}
.centreblock{ width: 400px; }
.leftblock, .centreblock {float: left; background-color: red;}
.rightblock{background-color: green; margin-left: 0px; margin-right: 0px;}

<body><div class="page">
<div class="leftblock">left</div>
<div class="centreblock">centre</div>
<div class="rightblock">right</div></div>
</body>

Well, that was a pain in the ass, Steve - remember to use < > to display all the > and < tags.

The left and central div now pose a problem:- when i shrink the browser window too much the layout breaks and the central div defaults to the line below. To solve this i use a div to encase them both, set it to float:left and its width to the sum of the two divs it contains (600px).

Now I'm faced with the problem that the right-hand div breaks out of the layout to the line below when you shrink the browser window past the righthand div. Researching.