Tips Archives - Page 9 of 12 - Yet Another Linux Blog

5 Unique Tips for New Ubuntu Users

Update! Before you read the article, please note that an inaccuracy of Point Number 3 has been pointed out in comments by cafeina. Thanks for pointing this out…there are downloadable guides for Ubuntu Dapper Drake available at http://help.ubuntu.com. These guides could be much more user friendly (they don’t have pics included) but that they get the job done quite nicely. Thanks for pointing this out Cafeina!

With the popularity of Ubuntu swelling these days, one can hardly visit digg or other tech news sites without seeing a Dapper Drake or Breezy Badger (both recent titles of Ubuntu releases). Another strong indicator that Linux in general, dapper drake aside, may be seeing an influx of users is the news that Microsoft receives a call back from Windows computers daily. Many users expressed deep concern about false positives where Microsoft receives reports that you are using a pirate copy of Windows when you are running a licensed version. Also, why not examine why WGA (Windows Genuine Advantage) fits the bill for Spyware? So, what’s a ticked off user to do? Give Linux the old college try, that’s what!

I’ve seen an influx of people dusting off Mandrake (that’s right, Mandrake not Mandriva…we’re talking pre-name change) and Red Hat 7.2 disks and firing off questions in forums about how to do various things in Linux. Renewed interest in alterntives to Microsoft coupled with big headlines for Ubuntu means many new users are examining Ubuntu when they evaluate (or re-evaluate) the state of Linux. This being said, I have 5 Tips for New Ubuntu Users that you won’t hear anywhere else.

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Fan the Linux Flames

Anyone who knows me knows that I HATE inefficiency. If I find a new way of doing things that eliminates the resources I spend doing that thing, I pounce on it. So when I ran across a nifty little program that makes life managing my two linux boxes easier, I pounced. The tool I’m speaking about is called “Fanterm” and it makes managing a limited amount of Linux boxes a snap. I had forgotten that I had installed this and when I brought up my second Linux box (upgrade motherboard) I remembered reading about it on the web somewhere. A quick google search refreshed my memory…although this article only talks about fanout. Fanterm really brings a powerful tool for smaller network system admins.

So what does it do? It’s pretty easy and straightforward. After you download & install the necessary files, open up an Xterm and use the following syntax to parse your command:

fansetup onemachine anothermachine user@yetathirdmachine

The command above opens up 3 xterm windows in addition to the local one you opened up. Now you type your command in the original and watch as the command is mirrored in the other xterm windows. Making quick changes to smb.conf files works like a top. If you want to know the uptime of all your systems, you’re set. This makes managing a limited number of linux boxes a snap…apt-get update; apt-get upgrade anyone? The thing I like most about it is that I get to SEE what happens on each computer…that way if something goes haywire, I’m not executing a command on a file that doesn’t exist on the remote linux box.

Make sure you give this tool a go, it makes life much easier in small networks. Hope it comes to be as useful to you as it is to me.

I can’t get MySQL to work!!! Something about mysql.sock…

So you’ve got problems getting MySQL to start? You’re not alone. There are a couple of things you can do to get things rolling. Linux comes with a database that tells it how to add MySQL users and MySQL tables. However, MySQL is not started by default…and if it is, it requires that default table to be created before it can run without incident. Here are the commands you can issue to get things going:

cd /usr/bin

su mysql

mysql_install_db

Lastly, issue the command:

mysqld_safe &

What you’ve just done is logged into you Linux box as user mysql, then installed the default database…and then with the mysqld_safe & command you initiated the mysql daemon to run in the background. So, things should be good to go now. MySQL is running and you’ll be able to press on with things by adding users and databases.

A bit more info for you…creating databases and users can get tedious via the linux prompt. You can use phpmyadmin or webmin to automate this process and save yourself time and effort.

Slackware 10.2 Tips and Tricks

Want to Install the 2.6.13 Kernel is Slack but don’t know how? Ask and ye shall receive!

First, mount the CDROM…in my case, it is /dev/hdb

mount -t auto /dev/hdb /mnt/cdrom

mount -t auto /dev/cdrom /mnt/cdrom

Next, let’s install that Kernel! Insert Slackware Disc 2…then issue the commands below.

installpkg /mnt/cdrom/linux-2.6.13/kernel-source-2.6.13-noarch-1.tgz

installpkg /mnt/cdrom/linux-2.6.13/kernel-modules-2.6.13-i486-1.tgz

installpkg /mnt/cdrom/linux-2.6.13/kernel-headers-2.6.13-i386-1.tgz

installpkg /mnt/cdrom/linux-2.6.13/kernel-generic-2.6.13-i486-1.tgz

installpkg /mnt/cdrom/linux-2.6.13/alsa-driver-1.0.9b_2.6.13-i486.1.tgz

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KDE Shortcut Keys

Most people know shortcuts in Windows but neglect to find out shortcuts in KDE when they make the switch to Linux. So, if you have a shortcut in KDE that isn’t covered here…please comment it so that others can benefit from your knowledge! PS: Some of these might not work with your version of KDE…just test them out and see if they do!

Alt-F2
Brings up a “Run Command” prompt

Alt-Print and Cntrl-Print
Take a screenshot. You have to paste it from your clipboard

Alt-Esc or Control-Esc
Shows the KDE session manager, from which you can switch to a specific application or log out of KDE.

Ctrl-F[1..8]
Switch to a specific desktop.

Alt-Tab or Alt-Shift-Tab
Cycle through your windows.

Ctrl-Tab or Ctrl-Shift-Tab
Cycle through your desktops.

Alt-F4
Close the current active window.

Ctrl-Alt-Esc
Window destroyer (every window you click on will be destroyed).

Alt-F3
For your Window Menu

Ctrl-Alt-Backspace
This exits KDE but doesn’t save your settings or work.

Ctrl-Alt-Numpad +
Cycles to the next screen resolution available.

Ctrl-Alt-Numpad –
Cycles to the previous screen resolution available.

Hope these help you out…please post any you might have that are helpful and I’ll add them to the list with credits. Thanks again for reading.

The 10 Minute Linux Firewall

If you’re like me…you still have to run some form of Windows for daily operations at your house or office. While most of the time there are helpful hardware additions at work such as a firewall/avtivirus…at home, you’ll find a more simple router/firewall and antivirus solution that doesn’t protect as well. While this is better than nothing, it also doesn’t have the power that a Linux firewall does…nor does it have the ability to patch itself when a vulnerability is discovered.

Did you know that most router/firewalls that you can buy at the store come with a set of default passwords that work on ALL MODELS? Yours could be open to hacking right now. To lock down your network, you can take an old computer, install Linux, and use it as a firewall with your own custom rules and regulations…plus it’s great to show off to the ladies Wink 😉 lol.

I wrote a tutorial on how to do this at http://daniweb.com. If this sounds like something you’d be interested in (very easy to follow directions) then check out this link: http://daniweb.com/tutorials/tutorial14094.html.

Or continue reading the article in full below…

The 10 Minute Linux Firewall

At the forefront of almost every single System Administrators mind is security. Redmond has been catching a lot of flack lately about not being as secure as they could be. As some of you have noticed, there has been a market swing in the use of Mozilla and Firefox as webbrowsers, creating a small nick into the 90% marketshare that Redmond owns with IE. Some IT Specialists are also seeing the same swing in the Server market.

So what does this have to do with Firewalls? Well, just like switching webrowsers or servers away from M$, a Linux firewall means added security AND possibly even increased browsing speed. Today, I’ll discuss the easiest way to get up and running with the 5 minute Linux firewall.

First things first. I’m not going to go into detail on many distros…I’m going with one that I know work…and that I know work FAST…and that would be something a ‘Windows’ person could install and configure in a matter of minutes. In my mind, the easiest distro is Smoothwall.

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