This is simple – the reason for this is that a recovery partition has not been installed abs you are not using an installation media.
Just connect and Ethernet cable to a working network or click top right on the WiFi signal abs connect to your network.
Now retry the installation.
Recursively reset the folders and file permissions on a wordpress install
chown www-data:www-data -R * # Let Apache be owner
find . -type d -exec chmod 755 {} \; # Change directory permissions rwxr-xr-x
find . -type f -exec chmod 644 {} \; # Change file permissions rw-r--r--
To initialise a git repository and push local files to a remote repository.
Basic commands to configure your remote URL; add your local files; commit with comment and then push files.
git init
git remote add origin <url>
“Login to your GitHub account and enter the Dashboard. Select a repository from the Your Repositories list. Click the Clone or download button and copy the repository link (for SSH).” Source
git add .
git commit -m “Comment”
git push -u origin master
To initialise a git repository and pull down existing repository files.
git clone <url> .
To switch between branches
git switch <branch name>
To delete a branch
git branch -d <branch name>
git pull <URL> <branch>
An excellent article, clearly and accurately written.
https://www.linux.com/learn/easily-encrypt-your-flash-drives-linux
An easily found solution to gathering your network external IP address:
dig +short myip.opendns.com @resolver1.opendns.com.
Simple cheat sheet for connecting via ssh with no password.
#ssh-keygen -t rsa
#cat .ssh/id_rsa.pub | ssh user@server 'cat >> .ssh/authorized_keys'
Simple
If you experience a hard drive failure and need to re-install the Mac OS X operating system, you can create a USB install media.
You need a working Mac and a minimum of an 8GB USB pen drive.
sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install OS X Yosemite.app --nointeraction
It takes a good 20 minutes to complete and once finished, in the ‘Terminal’ app, you will see the line
Copy complete. Done.
Put the USB drive into the Mac you want to install on and when it boots hold down the alt key and choose your USB drive.
If you regularly use the command line and want to directly open an application and pass a file to it you can use the following:
open -a TextEdit ~/Documents/myfile.txt
The switch -a says use this application:
More switches from the command line:
open --help -a Opens with the specified application. -b Opens with the specified application bundle identifier. -e Opens with TextEdit. -t Opens with default text editor. -f Reads input from standard input and opens with TextEdit. -F --fresh Launches the app fresh, that is, without restoring windows. Saved persistent state is lost, excluding Untitled documents. -R, --reveal Selects in the Finder instead of opening. -W, --wait-apps Blocks until the used applications are closed (even if they were already running). -n, --new Open a new instance of the application even if one is already running. -j, --hide Launches the app hidden. -g, --background Does not bring the application to the foreground. -h, --header Searches header file locations for headers matching the given filenames, and opens them. --args All remaining arguments are passed in argv to the application's main() function instead of opened.
Simply edit the ~/.bach_profile file adding the following :
export PATH=$PATH:/path/to/your/bin/dir
Thats it, open a new terminal session and :
echo $PATH
Your /path/to/you/bin should now be listed
Quite often, after a computer or laptop has been used for a while, we may need to know what is taking up all of the hard drive space.
An open source command-line utility called ‘du’ allows us to check file and directory sizes.
Here is a little snippet to check the size of the items in the present wording directory (also known as `pwd` ).
du -hs ./*|grep ^\.*[0-9]\.[0-9]*G\.*$|sort -n
You should now have a list of files and folders that are 1 Gigabyte or greater in size.
So, you have setup a nice lvm partitioning scheme to future proof life, maybe the system will have a heart attack and need a new mobo; maybe we will fill up 20TB within the next year or so; maybe we get new architecture and want to migrate our huge data store across – ah haa !
So you get the set of lvm drives into the new system, boot up and can see the drives using:
fdisk -l
Great so far so good, now what ?
Well, we dont need to know why, just do this:
pvscan (will search all lvm block devices for physical volumes)
vgscan (scans all disks for volume groups)
If you are here its because you haven’t done this before and therefore have not taken the steps to prepare an lvm migration therefore:
1 – mark the volume group inactive
vgchange -an <volume group name here>
2 – export the volume group
vgexport <volume group>
3 – import the volume group into the system (kernel)
vgimport <volume group>
4 – activate the volume group
vgchange -ay <volume group>
Job done !
You can go ahead and mount as required.
Credited source over here
Ever find yourself on another Linux system wondering why is this system so slow !
I wonder what RAM is installed I hear you thinking, the answer is the ‘free’ command.
# free
This will show you the amount of free and used memory installed in your machine with the option to use the following switches:
-b this will display the output in bytes
-k again in kilobytes
-m megabytes
-g gigabytes
-h in human readable form
-t will give you column totals
-s <variable> will repeat the command every <var> seconds
http://linux.about.com/library/cmd/blcmdl8_mtr.htm
A very helpful command that allows network admins to find and to see packet losses and ping times etc.
It is described as being a culmination of traceroute and ping. (see link above)
# TIME CHEAT SHEET # 300 5 MIN # 600 10 MIN # 900 15 MIN # 1800 30 MIN # 2700 45 MIN # # 3600 1 HR # 7200 2 HR # 10800 3 HR # 14400 4 HR # 18000 5 HR # 36000 10 HR # 39600 11 HR # 43200 12 HR # 46800 13 HR # 50400 14 HR # 54000 15 HR # 86400 24 HR # # 86400 1 DAY # 172800 2 DAY # 259200 3 DAY # 345600 4 DAY # 432000 5 DAY # 518400 6 DAY # 604800 7 DAY # # 604800 1 WEEK # 1209600 2 WEEK # 1814400 3 WEEK # 2419200 4 WEEK # # 2419200 1 MONTH # 4838400 2 MONTH # 7257600 3 MONTH # 9676800 4 MONTH # 12096000 5 MONTH # 14515200 6 MONTH # 16934400 7 MONTH # 19353600 8 MONTH # 21772800 9 MONTH # 24192000 10 MONTH # 26611200 11 MONTH # 29030400 12 MONTH
credit given here
Dependencies to install asterisk from source:
zlib-devel
ncurses-devel
openssl-devel
gcc
make
glibc-devel
autoconf
autotools
kernel-headers
newt-devel
once having downloaded the asterisk source file into /usr/src and untarred it. There is a useful script that can be found in /usr/src/contrib/scripts/ called ‘install_prereq’.
Pass the parameter ‘install’ and sit back !
If you want to instigate a filesystem check on a Linux file system during the next reboot, create a blank file called forcefsck in the root directory (/).
I would suggest running the following commands as an administrator or user with elevated permissions:
touch /forcefsck
reboot
If you have Exchange setup and want to accept email to more than one domain, you can achieve this by doing the following:
Open system manager.
Drill down to recipient policies.
Right click on the default policy choosing properties.
Amend as necessary.
Should do the job.
LCRM is proud to present the recently refurbished WWRS website.
Working closely with the team at WWRS has helped produce a satisfying end result.
Worldwide Recovery Systems build and supply many different types of vehicles including:
Service Vans
Multi-car carriers
Accident Units
Transporters
Trailers
The newly refurbished website provides a streamlined view of their vehicles.
WWRS also supply accessories such safetywear, lifting gear, lighting and more.
Take a look at http://www.worldwiderecovery.co.uk.
To change the default size of allowed emails on Microsoft Exchange 2003.
Open System Manager, go to Global Config area, expand and right click on Message Sending.
Choose the defaults tab where you will be able to adjust both incoming and outgoing size limits.
Found a great website to help with useful IMAP commands:
http://bobpeers.com/technical/telnet_imap.php
Enjoy
If you are setting up a new Kerio mail server and want to use imapsync to port across your emails, this following command helps to re-locate your email folders from the existing server into a nice way on your tidy new Kerio server.
imapsync –syncinternaldates –subscribe –ssl1 –ssl2 –authuser1 admin –user1 user1 –passfile1 /home/user1/.passwordfile –user2 olduser1 –passfile2 /home/user1/.oldpasswordfile –sep2 / –prefix2 “INBOX/” –nofastio1 –nofastio2
That should nicely transfer all existing emails into their respective folders underneath your new Kerio Inbox folder.
replace admin; user1; user2; /home/user1/{.passwordfile, .oldpasswordfile} with your details.
Enjoy
Costa
Seems there has been a breakdown in communication between Imapsync developers and main distro developer teams – perhaps even perl – – who knows !!
Anyhow there is a problem at hand between Imapsync and Mail::Client.
Problem
Subroutine Authuser redefined at /usr/bin/imapsync line 2557.
imapsync needs perl lib Mail::IMAPClient release 2.2.9 exactly, future imapsync release may suppoort 3.0.x, but sorry not now. See file BUG_IMAPClient_3.xx
# Looks like your test died before it could output anything.
Solution
rpm --nodeps -e perl-Mail && rpm -ivh ftp://rpmfind.net/linux/dag/redhat/el5/en/i386/dag/RPMS/perl-Mail-IMAPClient-2.2.9-1.2.el5.rf.noarch.rpm
Enjoy
Hi all,
For Linux administrators ,SSH is as important ,if not more so, than a watch.
Typing in a password every time a remote connection is established is detrimental to both workflow and security.
Using the tried and tested
cat .ssh/id_rsa.pub | ssh admin@remote.com 'cat >> .ssh/authorized_keys'
to bypass the password prompt is a great help.
However, it has been found that sometimes this doesnt work, the answer might be the permissions on the ‘authorized_keys’ file.
The solution (on the remote server – after executing the above command)
cd .ssh && chmod 600 authorized_keys
Now logoout and try to re-connect using ssh again
Hope this helps
This problem is rectified by adding PTR records:
I had this problem and resolved it by ensuring DNS replication of a reverse lookup zone for the subnet.
I also added PTR records for each DNS server to the domain and the reverse lookup zone.
Enjoy
If you use many distros you probably think ‘why hasn’t yum got a re-install’..
me too
But i found a work-around
rpm -e --justdb --nodeps %packagename%
yum install %packagename%
Thats a way to ensure you only remove the specified package allowing you to use yum to reinstall it again.
Found the original article and info here
Enjoy
So I installed VMWare server and wanted to know how to set my DHCP server to listen on just eth0.
Simple answer on Fedora is to edit
/etc/sysconfig/dhcpd
adding the following
DHCPARGS=eth0
Hi all,
Question: Many times I wondered why is there a vnc service and why does it always fail on startup?
Answer: Simple configuration of the /etc/sysconfig/vncservers
Examples:
this sets up a remote desktop service for user ‘john’ with a resolution of 1024×768
edit /etc/sysconfig/vncservers
VNCSERVERS="2:john"
VNCERSVERARGS=[2]="-geometry 1024x768"
If you want more than one user to have access, do the following:
VNCSERVERS="2:john 3:paul 4:harry"
VNCSERVERARGS[3]="-geometry 800x600"
VNCSERVERARGS[4]="-geometry 1600x1200"
That’s it.
Restart your vnc service and add it to the startup line:
/etc/init.d/vncserver restart
chkconfig vncerver on
Enjoy
Sales are up and we have the pooch of the month competition prize winner in.
Murphy, the ex RAF Spaniel won the competition this month.
Congratulations Murphy – looking forward to seeing you in store soon.
If you have only one parallel port and need to connect two printers check to see if one has an ethernet port with an RJ45 connector, if so here is what you do:
Connect up your parallel port printer as needed and install as neccesary with drivers and such.
Find yourself a cross-over cable and and extra ethernet card, and manually connect up the second printer to the new network card.
Manually configure the second ‘Local Area Network Connection’.
Most probably the following setting will work on a Windows~ machine.
IP 192.168.2.1
Subnet 255.255.255.0
Gateway 0.0.0.0
DNS: <leave empty>
Follow the instructions to setup your ethernet card connected printer with the following configuration:
IP 192.168.2.2
Subnet 255.255.255.0
Gateway 0.0.0.0
Now add the new printer by Control Panel > Printers and Faxes, choose Local Printer but do not click the attached directly button.
Click next and then create your own port at the bottom by chooing TCP/IP.
Click next and just type 192.168.2.2 in the IP Address box.
Click next and you should instanty be shown the new printer successful install page – click Finish to Finish.
Thats the best way, you can then share those printers on your locally connected network. The serial pors for printers are useless and parallel port switch boxes are just very inconvenient on a network with more than one PC or laptop.
Enjoy
It’s easy, just run as root:
;ifconfig eth0 192.168.1.x netmask 255.255.255.0;
The example shows a class c address with a common subnet mask.
The example above also assumes eth0 as the example network adapter. Other common interfaces may be wlan0 for wireless cards on laptops.
So, you just came across a 2-Port KVM switch and have hooked it up to two PC’s.
Now what ?
How on earth do you switch between machines……?
Simple !
Press the “Scroll lock” key twice
Now use the up/Down arrow key to switch between machines.
Simple, there you go.
Enjoy.
Hello all,
If like me you seem to be missing the Airport Disk Utility and have spent the last few hours searching through Apple’s website for a simple download then are in the right place and at the end of your journey.
Go to http://www.apple.com/downloads and look for the the most recent Airport Base Station update.
Enjoy
Having to send my Nokia N95 back for the third time now, all with different problems.
Trying to reset the phone through the Tools menu to factory defaults still did not clear my calendar etc
Then i found out to use the network command:
<code>*#7370#</code>
Enjoy
Hello,
So to access the service menu of the Apple TV to reboot the box just:
Hold down the ‘ Menu’ button and the menu scroll down button ‘ – ‘
Then select ‘Restart’ to reboot Apple TV.
Select diagnostics to run automated self tests.
Select ‘Factory Restore to reset Apple TV to how you first had it – probably deleting all music, photos off of it too.
Enjoy
This is my interpretation on setting up a self-signed SSL certificate for an Apache web-server.
The instructions are generic and apply to most versions of Apache on almost any Linux platform.
Firstly, I suggest creating a separate directory to store your SSL certificates e.g.
mkdir /var/www/ssl/mydomain
Now lets browse to the directory we just created:
cd /var/www/ssl/mydomain
We are using the ‘openssl‘ utility to generate our SSL certificate.
Firstly, we create a private key** using:
openssl genrsa -out mydomain.key
Now we generate a certificate signing request or CSR for short using:
openssl rsa -in mydomain.key -out mydomain.csr
Fill in the appropriate fields with relative information….
and, finally create the self-signed certificate using:
openssl x509 -req days 365 -in mydomain.csr -signkey mydomain.key -out mydomain.crt
This creates a selfsigned ‘mydomain.crt’ for 365 days.
**For safety only allow root to read the private key using:
chown root mydomain.key && chmod 600 mydomain.key
http://dogsboutique.co.uk are running a monthly competition to find the most pampered pooch.
The winner will win £25 to spend in-store or on-line.
All you need to do is to email us a picture of your groomed model perfect pooch with his name and a contact email address- that’s it!
The competition is running through January only at present but, if it proves popular – it will be back!
email: info@dogsboutique.co.uk with subject “DogsBoutique pooch of the month competition” and attach your image maximum 5MB in size.
E-mail us at info@dogsboutique.co.uk,
After spending about two days struggling I finally managed to network Ubuntu 7.10 and Mac OS X Leopard using AFP.
The final piece in the puzzle was
nano /etc/defaults/netatalk
I read many tutorials but, and not the 100%, complete one I ended with was here.
So thanks everyone
Using Linux BASH environment I needed to find a way to create m3u playlists.
I first trawled the Internet looking a program to automate this for me — none!
So I then decided to find the m3u file syntax to create my own by hand — none!
Reverse engineering an existing m3u (and speaking with an Apple creative genius) I found that m3u files are simply text files which point to mp3 files.
Simple I thought — just use a loop to write file names to an m3u file.
Therefore, current working directory ($CWD) /your/music, within $CWD we have many directories, listed by artist name i.e. /your/music/abba.
Furthermore, within artist directories we have albums i.e. /your/music/abba/album1; /your/music/abba/album2.
This procedure requires entering each album artist i.e. cd /your/music/abba == present working directory.
Now for the script:
for x in */*.mp3; do echo "$x" >> "${PWD##*/}.m3u"; done
Result
We have a file with the name of the artist i.e. abba.m3u which contains a list of all mp3’s within the albums !!
Voila – Amend as necessary
**UPDATED**
I created a new script file below that allows you to pass directories into – not 100% for everyone but its a good start.
1 – Copy the code into the script m3uplaylist.sh
#!/bin/bash
m3u="${1##*/}.m3u"
echo "m3u= $m3u"
for x in “$1″/*/*.mp3; do echo “$x” >> “/your/music/M3u/$m3u”; done
2 – add execute permissions chmod +x m3uplaylist.sh
3 – run sh m3uplaylist.sh /your/music !! do not add trailing ‘/’ !!
4 – [optional] run a for loop to recurse your main music folder for M in /your/music/*; do /bin/sh m3u-playlist.sh $M; done
Done I hope – let me know if you have trouble or can suggest improvements please
Enjoy !
** latest **
finished perfecting the script after many attempts and here is the final code
for i in /your/music/*; do find "$i" -maxdepth 3 -iname "*.mp3" > "$i/${i##'/your/music/'}.m3u";done
I used this command to truncate the beginnings of strings of text from files
for x in *.mp3; do echo "orig: ${x##*'text string'}";done
Another great article is here
and then to move them
for x in *.mp3; do mv "$x" "${x##*'text string'}";done
The work on Dogs Boutique has allowed me to use AJAX for the first time.
The Dogs Boutique website has an online store, selling products such as dog collars, dog beds, dog carriers, dog clothing, dog jewelery and more.
Dogs Boutique Online Store – Everything for your pampered pooch
Dogs Boutique also provides an in-house doggy holiday home service.
DogsBoutique now offers an online store for purchases 24 hours a day.
The shop can be found at http://dogsboutique.co.uk/mail-order
Hi,
I have ben using Linux for ages and always wanted to know the size of folders when using the command line.
I often used ..
df -h
.. to find how much space was left on the system drives – but what if you were in a sub-directory of your device and wanted to know which folders were the culprits for eating your away at your ~500GB drive…
du -hs *
That code will tell you the disk usage (du), using options to display the results in human readable form (-h) summarizing the folders only (s).
The * will recurse the current directory displaying results for all directories within you current directory.
Enjoy
Hi,
Just finishing my BSc in I.T. and have chosen to write my 8000 word project report on HSPA technology.
Wikipedia has a great section on the past/present and future surrounding technologies such as W-CDMA.
Here is a brief list of the pages I found useful on Wikipedia.
http://en.wikipedia.org/wiki/CDMA
http://en.wikipedia.org/wiki/Enhanced_Data_Rates_for_GSM_Evolution
http://en.wikipedia.org/wiki/HSDPA
http://en.wikipedia.org/wiki/High-Speed_Packet_Access
http://en.wikipedia.org/wiki/HSUPA
http://en.wikipedia.org/wiki/QPSK
http://en.wikipedia.org/wiki/16QAM
http://en.wikipedia.org/wiki/Spread_spectrum
A great book by a couple of Nokia employees also adds some real technical material to the mix:
#15 Tolma Harri; Toskala Antii; (2006) HSDPA/HSUPA for UMTS – High Speed Radio Access for Mobile Communications, John Wiley & Sons Ltd, Wiltshire. [Available from Waterstones – priced ~£65.00 ISBN 0-470-01884-4]
I will be writing some more soon.
Hi,
If you have followed some instructions on setting up Gentoo and eventually have trouble with samba, I reckon its because your /etc/samba/smb.conf file is bloated with a hole load of unnecessary code.
It just needs to look like this:
[global]
workgroup = MSHOME
security = user
local master = yes
[homes]
valid users = %S
read only = no
browseable = no
That’s it!
Nice simple and secure. Allowing users to login to their home directories.
Enjoy
Hi all,
Not wanting to buy Microsoft Office and having to use .doc files – I have OpenOffice 2.3 Aqua on my Mac.
It usually takes a while to load which is annoying – so after some searching I found a way to speed it up.
1) As superuser run the following :
sudo su -
nano /Applications/OpenOffice.org\ 2.3.app/Contents/MacOS/sofficerc
simply change 'Logo=1' to 'Logo=0'
To enhance the usability there are some more instructions at the link below:
http://www.zolved.com/synapse/view_content/28209/How_to_make_OpenOffice_run_faster_in_Ubuntu
(shown on Ubuntu Linux but can be applied to any OS)
Okay so you are working away day after day and every now and then when you right click on a folder or file all your Finder windows just up and disappear.
Oh that’s a bother but never-mind it will be back in a minute…… or two.
Basically its the contextual menu folder that has an issue and more specifically the StuffItCM.plugin (from stuffit & co).
Simple solution is to :
Go to “~/Library/Contextual Menu Items” or “/Macintosh_HD/Library/Contextual Menu Items” and delete the file StuffItCM.plugin.
Maybe a reboot or logout/login just to be safe and also empty your trash for good!
et voila
Let me know if this works for you with a quick thanks.
I found this out from the thread here.
If like me you have constant issues with your Nokia N95 – and the factory default setting does nothing, you can always try the hard code *#7780#.
Always backup your data first and regularly before messing with any settings !
So you have tightened security on your main server by changing the default port number.
Once a week to backup your server data by using the rsync application on a local backup server – possibly even running a crontab script.
All of a sudden you get errors such as:
ssh: connect to host port 22: Connection refused
rsync: connection unexpectedly closed (0 bytes received so far) [receiver]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-24.1/rsync/io.c(359)
Why is this ???
The option rsh allows the desired port to be specified through ssh.
In the following example, the -r option specifies ‘recursive’; -z enables compression; –rsh=’ssh -p1234′ tells rsync to use port number 1234 for transfers/connection.
The code would look something like this:
rsync -r -z --rsh='ssh -p1234' /dir1 maybe@me.my.my.domain:/rdir --progress --stats
That’s it enjoy
Hi all,
After being pre-occupied for a while I decided to get back into writing on my blog.
I found it quite a hassle, however, as I am sure you also do – to have to keep opening a web browser, logging in, creating a new blog etc….
I thought it would be great to have a piece of software that I could write my blog article in, even when I am not able to login, although hardly ever nowadays.
The work on Dogs Boutique has allowed me to use AJAX for the first time.
The Dogs Boutique website has an online store, selling products such as dog collars, dog beds, dog carriers, dog clothing, dog jewelery and more.
Dogs Boutique Online Store – Everything for your pampered pooch
Dogs Boutique also provides an in-house doggy holiday home service.
If you are going on holiday and do not want to leave your precious pooch in kennels – Dogs Boutique is your answer. They provide a home-from-home service in a doggy friendly environment.
Why not give them a call – not only are they highly experienced but there is also a dog grooming service on-site that has been established for over 30 years.
LCRM Blog 