Category Archives: Linux

The Linux Category actually encompasses *BSD, RH, Fedora, Ubuntu, and the like.

Analog On Ubuntu

This is a step by step process to install Analog logging server for apache on Ubuntu Server.

Update your ubuntu server
sudo apt-get update
sudo apt-get upgrade

Install analog
sudo apt-get install analog

Edit analog config file
sudo nano /etc/analog.cfg

Now I ended up putting in the following:

OUTFILE /var/www/stats/report.html
HOSTNAME “My Site”
MONTHLY ON
WEEKLY ON
DAILYREP ON
REQUEST ON
DIRECTORY ON
SEARCHWORD ON
SEARCHQUERY ON
BROWSERSUM ON
OSREP ON
FAILURE ON
REQLINKINCLUDE pages
REFLINKINCLUDE *
REDIRREFLINKINCLUDE *
FAILREFLINKINCLUDE *
SUBBROW */*
SUBTYPE *.gz,*.Z

And I kept all the search engine and page include stuff by default.

You can then run a crontab to allow the script to run every hour or day or month.
For everyone’s reference, here’s my settings in Crontab:
sudo crontab -e
15-45 * * * * /usr/bin/analog
That forces analog to run 15 and 45 minutes after every hour, every day, every week, every month.

VHCS On Ubuntu

I was given the project of DNS entries for several customers. After playing around with BIND9 for several hours (I actually got it to work for all sites EXCEPT http://sitename.tld – it worked fine for subdomains), a colleague suggested that I try VHCS. VHCS is a free software suite that allows for Virtual Hosts, DNS, and other web related items to be shared and easily managed between several groups. You can grab more data here: VHCS.net

I also chose to put this on Ubuntu because debian packages are easy to install, Ubuntu is fully supported by a huge user base, and Ubuntu also uses a very small footprint.

Once you download the suite, follow the Install directions all the way until you get an error similar to this:
If specified by -literal_key, then the key length must be equal to the chosen cipher's key length of 56 bytes at /var/www/vhcs2/engine/setup/../vhcs2_common_code.pl line 1443
Compilation failed in require at ./vhcs2-setup line (line whatever)
.

Here’s the fix:
nano /var/www/vhcs2/engine/vhcs2_common_code.pl
Control + W and search for db_pass_key
Any time you see 'key' => $main::db_pass_key fill in the following ABOVE the line:
'keysize' => 32,

Then rerun the script ./vhcs2-setup

P.S. By the way even, the instructions don’t really mention that you have to copy some folders over. Make sure you copy everything in the vhcs2-2.4.7.1/configs folder to /etc/vhcs2/ otherwise it will fail out. If you get some postfix errors, that’s probably ok.

P.S. Part 2 There is a much easier product to setup: ISPConfig. You can find it at ISPConfig.com. I recommend using ISPConfig as it is actively maintained.

Webmin Install Ubuntu 8.04 Server

1.) Log into your server. You can use SSH or your TTY.
2.) wget http://prdownloads.sourceforge.net/webadmin/webmin_1.340_all.deb
3.) sudo dpkg -i webmin_1.340_all.deb
4.) If you get errors, just type sudo apt-get install -f (this will install all the required pre-reqs)

EDIT: I had this as 8.06 server, when in fact it’s 8.04. My mistake. And since I always seem to install this right after installing the server, it’s a good idea to apt-get update, then apt-get upgrade

EDIT PT 2: The newest package is webmin_1.430_all.deb

EDIT PT3: if you’re installing on a CENTOS 5 box (like I am right now), you’ll need to wget http://downloads.sourceforge.net/webadmin/webmin-1.430-1.noarch.rpm
and then rpm -i webmin-1.430-1.noarch.rpm

EDIT PT4: Newest package is webmin_1.470_all.deb (http://prdownloads.sourceforge.net/webadmin/webmin_1.470_all.deb)

EDIT PT 5: Newest is webmin_1.490_all.deb (http://prdownloads.sourceforge.net/webadmin/webmin_1.490_all.deb)

CentOS and VMWare Server 1.0.6/2.0.0

It was a toss up between a 64bit Ubuntu Server (8.04) and a 64bit CentOS Server (5.1). I couldn’t decide between the two, except for the fact that more people have installed VMWare server on CentOS than Ubuntu. And most of those people have been successful. Yay!

The server is a Dell PowerEdge 2850, 2X 3.0GHz Intel Xeon Processors (800FSB), 12GB RAM, 6X 300GB SCSI HD in RAID10 (1+0). It’s a beast. Why didn’t I go with a 32 bit OS? Because of the 2 to 4GB limitations imposed upon single processes. Take MySQL for example:
64Bit OS MySQL will use up as much RAM as you have (actually it uses up roughly 8 out of 12GB in another server)
32Bit OS MySQL will use up to 2GB RAM in the same spec server.

So I want to use VMWare to it’s full potential.
Install CentOS with most of the defaults. I didn’t choose to install support for virtualization.

First thing is first: UPDATE your server. yum update
Next we have to install GCC. yum install gcc
Then install the developer kernel yum install kernel-devel
Reboot your system. This will make the new kernel active.
Download VMWare Server from vmware.com
tar xvfz vmware*.tar.gz
cd vmware
/etc/init.d/xinetd start
./vmware_install.pl

If you ever update the kernel you will need to run the vmware configuration again /usr/bin/vmware_config.pl

Getting Samba to work was a whole different matter. Issues… Issues… Issues.

************************************************

2.0.0 is the same, but I made the mistake of installing the xen kernel on the development machine. VMWare will not work with the xen kernel – you will get an error:
You cannot install VMware Server on a system running a xen kernel

So then you must:

yum install kernel
yum remove xen kernel-xen
nano /boot/grub/grub.conf

and then make sure that in the grub.conf menu that it’s trying to load the kernel and not the xen kernel. It probably does this automatically, but a few seconds here fixes issues down the road.

Forgotten Passwords

I can’t tell you the number of people that come up to me and ask if I can retrieve their password. For certain devices I can either reset the password or I can figure out a way to reset the password. Several websites give options to reset your password. Several Instant Messaging programs give the option to reset your password. I’m really just trying to see how many times I can type “reset your password”.

So here’s the lowdown on what can be reset, and a mostly “how-to” do it:

Mac OS 6.* – 8.5: If you set up a password you’re a fool. The OS doesn’t support native passwords and is a single user OS. You set one? Reformat and start from scratch. Or just live with it.
Mac OS 8.6 – 9.*: Read above. The OS was meant to be a single user Operating System, but somewhere along the line someone decided it would be a good idea to include basic password login protection. Usually a reboot will yield an “auto login” situation where you can change the preferences of a screen saver password. Otherwise you’ll have to reformat once again.
Mac OS X.*: Here’s the really easy part – Apple has included the utility to reset the password for you. It’s on the Apple Installation Disc. Don’t have the disc? You’ll have to download or buy one then. Have the disc? Boot off of it (press and hold C while turning on the computer), and then when you see a menu at the top of the screen click on Utilities. You’ll now see a “reset password” option. You can get the rest from there.

Windows 95/98: Press ESC instead of trying to login.
Windows ME: Burn your computer and that crappy Operating System and buy a new one.
Windows 2000/NT/XP/2003/Vista: Find a linux boot disc (knoppix should work) that can edit SAM files and reset administrator passwords.

Ubuntu: Press ESC at the grub prompt, Press E for edit, Select the line that begins with Kernel and press E, Go to the very end of the line and add “rw init=/bin/bash” without the quotes, Press enter and then B to reboot. This will give you full root shell access, so then type “passwd ” to reset that user’s password.

A lot of people work in corporations with Active Directory Microsoft Windows computers. Here’s a couple things that people should know:
1.) Administrators do NOT know your password for your login to the computer. We can reset it, but we can’t retrieve it (with normal means)
2.) Administrators do NOT know your password for your personal chatting application. We, like EVERY OTHER PERSON, can go to the provider’s website (ie yahoo.com/aim.com/msn.com) and have them send a reset password email to the registered email address.
3.) Administrators do NOT know the POP server or IMAP settings to your personal email. I actually block access to POP and IMAP so I don’t have to hear this one daily.

Eggdrop Bot Installation on Ubuntu

Since I’m being lazy this post is mostly for me. Here’s a good starting place:
Egghelp.org
After you’ve downloaded the tar.gz file, uploaded it to your server, and pretty much gone to ./configure, then come back here.

If you can go to ./configure and everything runs peachy, you’re a better system setup guy than I am. Otherwise Eggdrop requires TCL to be installed and compiled (you should get some sort of compiler error saying it can’t create executables if not installed).

apt-get install gcc
apt-get install tcl8.4
apt-get install tcl8.4-dev

That’s it. Go and run that ./configure again.

Unless you’re on Ubuntu 14.04…
./configure --with-tclinc=/usr/include/tcl8.6/tcl.h --with-tcllib=/usr/lib/x86_64-linux-gnu/libtcl8.6.so

Apt-Get not apt-getting

I had just finished installing Ubuntu 7.10 on a virtual machine. This virtual machine had no active connection to the internet (which is why this actually happened).

After install, I tried to run the software update service. It said that there were no updates to install. I tried to apt-get install ssh and that failed too. So I tried apt-get update. No updates. Hmmm.

It turns out that if there is no active connection, Ubuntu will comment out all the sources for software in the sources.list file. You can find it here:
cd /etc/apt
nano sources.list
uncomment some of the repositories and save the file
apt-get update