Worried about the security of your Unix box? Chkrootkit will check your machine for many common rootkits. Even if you’re confident your machine hasn’t ever been compromised this might be a good app to keep in mind just in case.. Not worried are you? Take a look at the readme for one such rootkit. It’s simple to run.
(thanks to Colm for those.)
Tag Archives: Linux
Quicktime to Divx Conversion.
mencoder -ovc divx4 -oac mp3lame -noskip detect_640_dl.mov -o detect_640_dl.avi
Great! My machine doesn’t play Quicktime movies very well – it’s under powered. It does play Divx files fine though.
The above command will convert a Quicktime file into a Divx file. Not sure yet how the filesize of the new avi will compare to the .mov file. There are options to set the bit rate and other Divx parameters so it’ll take some experimentation to get right if past experience with Windows encoders is anything to go by.
Update! Audio sync is way off. This pagepage has some more info that might come in handy for further experimentation.
Linux to Symbian File Transfer – HOWTO
I finally got to see my phone’s filesystem from Linux this morning! I used p3nfs to connect my Nokia 7650 and Red Hat 9 Linux box. Here’s how.
- Login to your Linux box as root.
- Make sure you have the following rpms installed: bluez-libs-devel, bluez-libs, bluez-utils. They’re available from your local apt-rpm repository (just apt-get install them!) or from http://bluez.sf.net
- Copy the following lines to your /etc/modules.conf
# bluetooth stuff
alias net-pf-31 bluez
alias bt-proto-0 l2cap
alias bt-proto-2 sco
alias bt-proto-3 rfcomm - Start Bluetooth services:
/etc/init.d/bluetooth start - Create the bluetooth device if it doesn’t exist:
mknod /dev/rfcomm0 c 216 0 - Create a directory for the mobile to be mounted on:
mkdir /mnt/psion - Download p3nfs from the site above. Copy the nfsapp for your phone to your phone (you’ll have to mail it to your phone, wap, or bluetooth in Windows.)
- p3nfsd doesn’t compile on Red Hat 9, but it’s simple to fix that. cd into the nfsd directory, edit “mp_mount.c” and remove any mention of
extern int errnofrom it and add#include <errno.h>at the top of the file. Do the same in “mp_xmit.c” and compile usingmake clean;make - Follow the instructions in README.bluetooth.linux (find the BDADDR, bind to the device, and start the nfs app and servers.
- cd into /mnt/psion and look around your phone!
This is in fact more useful than the Windows tools I have. I couldn’t send images from my phone to my desktop software, and there’s quite a few of them. Using this, I simply went into /mnt/psion/C:/Nokia/Images/ and “mv”ed the files onto my PC!
There’s an “Installs” directory there too so I presume that’s where the .sis and .jar files go to install applications. Will test later. /me’s happy!
This howto wouldn’t have been possible without the invaluable page Tom wrote about his own experiences. Thanks! And of course Google helped me compile p3nfsd!
Synergy – The K_M out of KVM
Synergy looks very useful for sharing desktops!
Synergy lets you easily share a single mouse and keyboard between multiple computers with different operating systems, each with its own display, without special hardware. It’s intended for users with multiple computers on their desk since each system uses its own monitor(s).
Thank you ILUG for the link!
MonMotha's IPTables Firewall
I’ve looked around for ages for a decent firewall generator script but I ran into problems with all of them. (No, I haven’t got time to learn about yet another firewall implementation! I gave up after ipfwadm!)
This script looks like it’ll do the business though! Just enter the network addresses of your internal lan(s), what ports you want to keep open, internal and external interfaces, and finally what networks to masquerade. Simple!
Update! Bah! Had to remove it again. It worked fine, except 2 users on our network had consistent problems connecting to our gateway for minutes at a time! Didn’t happen to anyone else though!
XPde desktop environment
I’m posting this from within XPde. It’s not bad. There’s no way I’d use it for day to day activity, but it might be useful for bringing over some of the masses to Linux!
Anyone who’s used to Windows will be immediately at home here. Like Windows, you have “My Documents”, “My Computer”, etc on the desktop.
Just like a virgin install of Windows you can’t do much with it either. There aren’t many applications on the desktop menu.
I’m already missing ALT-dragging windows however. That’s one aspect of the Windows GUI I’ve always despised. No doubt there’s a way to get that working but I CBA!
To cap it off, XPde is one to keep an eye on, and may be very useful in the future! Well worth checking out!
Windows supporters on #linux
I’m not saying the ILUG is a rabid anti-Microsoft crowd, not at all! Many of our jobs rely on them crashing, eating harddrives, their networking problems.. etc. But when 2 ardent .net/win2k3/latest ms buzzword supports show up on the #linux IRC channel it’s bound to cause some trouble. hehe.
Thankfully, the main protagonist, martin, has gone running off somewhere..
ssh login attack
Looking through my log reports this morning I was shocked to see lots of failed logins for users such as root, ftp, nobody, apache, operator, amanda, mysql, etc. All originated from one host, ns1.webmediaworks.net, A visit to their website explained everything..
TechTeaM OwnZ u box dollarz@bol.com.br
Unfortunately, the whois db seems to be down so I can’t even contact the webmedia site owners..
SCO – modem configuration
I know a hell of a lot more now about SCO than I did 24 hours ago. I know all about “Modem Manager”, /usr/lib/uucp/Devices and /usr/lib/uucp/Dialers – Argh! It’s so archaic! For those of you in the Windows world, imagine having to debug or use a Windows 3.1 application. That’s what SCO looked and felt like compared to the modern Linux systems I use everyday. Even a 4 year old Linux box is friendlier to the developer/user.
Finally, thank you Google for finding most of the information I needed. A few hints from a SCO applications developer in Dublin helped too. (“Have you tried 9600? Our modems have trouble connecting at different speeds” *ding*)
It was funny to see a Netscape icon on the desktop and ridiculous to see ncsa-httpd in the output of “ps”. Of course the guys in the office had no idea there was a webserver on the machine…
(Topic is Linux, close enough to Unix to not matter :P)
Ram Doubler for Linux!
Kernel Traffic reports that some people are working on compressing RAM instead of swapping it out. This is like the old Quarterdeck RAM Doubler on Win95 so long ago. Results are mixed however, and I even remember on Win95 the technique didn’t make much of a difference either in “real life” situations.