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Create .deb or .rpm from .tar.gz with checkinstall

Date: June 11, 2008. Categories: applications, centos, debian, distros, fedora, howtos, linux, tips and ubuntu. 9 Comments

tar logoCheckinstall is extremely useful utility to create .deb packages for Debian, Ubuntu (or .rpm packages for Fedora, RedHat, CentOs) from .tar.gz (or .tgz) source tarball after it’s compiled at your Linux box. In other words you can prepare binary package for later usage without need to compile software from sources every time you need to get it installed on certain Linux box.

Another application of checkinstall is software deinstallation that was compiled and installed from sources. As you might already noticed, not every programmer adds “uninstall” rule to Makefile and thus command “make uninstall” would fail. The nice solution is to use checkinstall to prepare binary package from sources and then install or uninstall it with dpkg command (or rpm in RedHat based distributions).

Here is the short algorithm on how to prepare .deb package from clamav source tarball:

1. Install checkinstall:
sudo aptitude -y install checkinstall (Ubuntu, Debian and related distributions)
or
sudo yum install -y checkinstall
(for rpm based distributions, please note that checkinstall usually isn’t included to standard Fedora/RedHat repositories, so you will need to link up third party repo like DAG)
or
compile checkinstall from sources

2. Get clamav sources:
wget http://mesh.dl.sourceforge.net/sourceforge/clamav/clamav-0.81.tar.gz (as an example)

3. Install libraries that might be necessary for clamav compilation:
sudo aptitude install libgmp3 libgmp3-dev
(this command is applicable for Debian and certainly will be different for Fedora or RedHat)

4. Compile clamav:
tar xvfz clamav-0.81.tar.gz
cd clamav-0.81/
./configure --sysconfdir=/etc
make

5. Run checkinstall and follow its intuitive instructions (enter package description etc.):
sudo checkinstall -D make install

6. When finished you’ll get clamav-0.81_0.81-1_i386.deb (or rpm package if you use Fedora/RedHat/CentOs) you may want to install with sudo dpkg -i clamav-0.81_0.81-1_i386.deb (or sudo rpm -i ...) or move to another PC for later installation.

FAQ: static routes after restart/reboot in Fedora/RedHat/CentOS

Date: May 9, 2008. Categories: centos, faq, fedora, linux and tips. 6 Comments

route 66Static routing is the term used to refer to the manual method used to set up routing. An administrator enters routes into the router using configuration commands. This method has the advantage of being predictable, and simple to set up. It is easy to manage in small networks but does not scale well.

Question: How can I save static routes I set up in my Fedora/RedHat/CentOS Linux after I reboot server?

Answer: In Fedora Linux (or RedHat, CentOS) you can set up static routes for certain network interface (for example eth1) by editing file /etc/sysconfig/network-scripts/route-eth1.

For example, you have to save static route added by the following command:

route add -net 192.168.0.0 netmask 255.255.255.0 gw 192.168.100.1 dev eth1

To do it, just add the following line to /etc/sysconfig/network-scripts/route-eth1:

ADDRESS0=192.168.0.0
NETMASK0=255.255.255.0
GATEWAY0=192.168.100.1

Update Dell laptop BIOS with Ubuntu

Date: December 9, 2007. Categories: centos, drivers, fedora, laptop, linux and ubuntu. 4 Comments

dell logoGood news for Dell laptops owners: latest BIOS images can be loaded with Ubuntu, Fedora or CentOS! It was announced at official Direct2Dell blog by Matt Domsch. In a nutshell to get new BIOS installed while you’re running Ubuntu 7.04 Feisty, 7.10 Gutsy, or Hardy just enable Universe repository in sources.list (System -> Administration -> Software Sources) and run under root (sudo -s):

wget -q -O - http://linux.dell.com/repo/firmware/bootstrap.cgi | bash
aptitude install firmware-addon-dell
aptitude install $(bootstrap_firmware -a)
update_firmware

The first command enables Dell’s Ubuntu repository as well as downloads and installs GPG key for this repository. As you might guess, restart is needed after last command is done (keep fingers crossed) :)

Please note that detailed instructions on how to update BIOS with Ubuntu (or other Linux distro) and firmware-tools developed by Dell are here:

We are releasing this project in the hopes of moving the industry towards a more scalable and friendly way to update BIOS and Firmware for systems.

Respect to Dell and it’s Linux engineers!

Long-awaited Pidgin 2.3.0 is out!

Date: November 27, 2007. Categories: applications, centos, linux and news. 2 Comments

pidgin logo One of the best instant messengers named Pidgin (previously Gaim) released it’s latest version 2.3.0. According to developers’ description Pidgin is a multiprotocol IM client and it’s goal is to hide protocols from the user as much as possible (users have to know about individual protocols when they create or modify accounts, but in day-to-day communication and usage, the intent is that users don’t have to think about protocols at all).

Pidgin supports the following protocols:

Read full developer’s changelog here and download Pidgin from pidgin.im/download. It’s available as source tarball, as binary packages for Fedora, CentOS/RHEL and other major Linux distributions, plus 2.3.0 version is ready also for Windows users.

Network Traffic Generator: hping

Date: September 21, 2007. Categories: centos, debian, fedora, linux, tips and ubuntu. 1 Comment

hpinghping3 is a network tool able to send custom TCP/IP packets and to display target replies like ping program does with ICMP replies. hping3 handles fragmentation, arbitrary packets body and size and can be used in order to transfer files encapsulated under supported protocols. Using hping3 you are able to perform at least the following stuff:

  • Test firewall rules
  • Advanced port scanning
  • Test net performance using different protocols, packet size, TOS (type of service) and fragmentation.
  • Path MTU discovery
  • Transferring files between even really fascist firewall rules.
  • Traceroute-like under different protocols.
  • Firewalk-like usage.
  • Remote OS fingerprinting.
  • TCP/IP stack auditing.
  • A lot of others.

I’ve tried several traffic generators for Ubuntu, Fedora (and other) like scapy, NTG, Bit-Twist, but only hping meets my requirements. Recommended.

Example: to generate 100 packets per second TCP traffic to 192.168.0.1 with packets containing arbitrary destinations, just execute:

sudo aptitude install hping3
sudo hping3 --rand-dest --rand-dest --faster 192.168.0.1

Information Improvisation: Traffic Engineering Server is new network appliance for Bandwidth Management that is especially suitable for Broadband ISPs and SMEs.

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