Category Archives: IT

Any kind of IT subject

tcpdump+wireshark

This command can be used to make tcpdump output readable by wireshark: tcpdump -vv -s 0 -i eth0 -w tcpdump.out tcp and port 4880 with headers and data tcpdump -i eth0 -s 1024 -l -A ‘port 80 and host 1.2.3.4’

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What is sed?

“Sed is a very powerful tool. A simple sed statement may turn a cat into cement. Observe: echo cat | sed statement“

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KVM: using a single partition [not ready]

The original howto can be found here: http://tips.at.gg3.net/2008/07/17/kvm-virtualize-a-single-partition/ . Actually it did not work for me out of the box. The main goal of this howto is the ability of using a single real partition as a single partition in … Continue reading

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ESET NOD32 + Debian/Ubuntu + paravirtualized guest

$ apt-get install ia32-libs $ dpkg -i –force-architecture esets-3.0.15.i386.deb dpkg – warning, overriding problem because –force enabled: package architecture (i386) does not match system (amd64) Selecting previously deselected package esets. (Reading database … 16356 files and directories currently installed.) Unpacking … Continue reading

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LXC on Ubuntu

This small howto describes a basic installation Linux Containers on Ubuntu 10.04 Lucid (or on Debian Sid). A good howto, which describes and explains many things, but Archlinux specific: http://wiki.archlinux.org/index.php/Linux_Containers#Host_device_access_settings

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Clapf+postfix install

Clapf is a powerful fast and simple spam- and virusfilter. It’s made in Hungary by Janos Suto. Official website: http://clapf.acts.hu I wrote a howto: http://clapf.acts.hu/wiki/doku.php/howto:ubuntu_clapf_mysql_libclamav

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Clonezilla quick howto

This small howto describes, how to install and configure Clonezilla. Clonezilla is a bit similar to Norton Ghost. Its biggest disadvantage is, that it cannot clone a HDD or a device to a smaller one. It’s developed on Ubuntu, but … Continue reading

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Thunderbird useful addons

keyconfig: http://mozilla.dorando.at/keyconfig.xpi functions for keyconfig: http://pqrs.org/firefox/extensions/functions_for_keyconfig/ QuickFolders: https://addons.mozilla.org/en-US/thunderbird/addon/3254 Lightning: https://addons.mozilla.org/en-US/thunderbird/addon/2313 Compatibility Reporter: https://addons.mozilla.org/hu/thunderbird/addon/15003

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vim tuning

vim trick, tuning, tips, commands Continue reading

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generate self-signed certificate in one command

DOMAIN= openssl req -new -newkey rsa:2048 -days 3650 -nodes -x509 -keyout $DOMAIN.pem -out $DOMAIN.pem

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generate certificate request

openssl req -new -keyout DOMAIN.key -out DOMAIN.csr -config DOMAIN.cnf

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crontab regular jobs: clapf, backup, apt-get, mysql

These crontab entries are for a common (email) server, they can be used in common on any server.

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Apache SSL + proxy

SSLProxyEngine on ProxyPass       /                       https://192.168.1.1/ ProxyPreserveHost On

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MLF listaarchívumok keresése

http://groups.google.com/group/hun.lists.mlf.linux/topics http://groups.google.com/group/hun.lists.mlf.linux-flame/topics http://groups.google.com/group/hun.lists.mlf.linux++/topics

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GRUB kiirasa az osszes meghajtora (SATA, SCSI)

grub> device (hd0) /dev/sda # /boot partition root (hd0,0) setup (hd0) device (hd0) /dev/sdb # /boot partition root (hd0,0) setup (hd0)

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Active vs. passive ftp

http://slacksite.com/other/ftp.html Active FTP : command : client >1024 -> server 21 data : client >1024 <- server 20 Passive FTP : command : client >1024 -> server 21 data : client >1024 -> server >1024

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Nyomtatókat automatikusan felcsatolo vbs logon szkript (attach printer logon script)

This small vbs script automatically attach proper printers for users.

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Redirect from html

Redirect the browser after some seconds to an URL. In this example in 5 seconds. <META HTTP-EQUIV="REFRESH" CONTENT="5 ; URL=http://rtfm.co.hu">

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Urlapok

Egy teljes, magyar nyelvű leírás html űrlapok készítéséről. http://download.rtfm.co.hu/pub/urlapok.html Full html forms mini-howto, unfortanetely in Hungarian. http://download.rtfm.co.hu/pub/urlapok.html

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vi quick tutorial magyarul

Remek vi leírás sürgős esetekre: http://www.vajko.hu/vitutor.html

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xorg.conf + wacom

A full example xorg.conf for using wacom.

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windows key shortcuts

Windows + D: Minimize or restore all windows Windows + E: Display Windows Explorer Windows + F: Display Search for files Windows + Ctrl + F: Display Search for computer Windows + F1: Display Help and Support Center Windows + … Continue reading

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