The last few days I keep having trouble connecting to my imap server running Cyrus. I started to view my syslog when trying to authenticate to the Cyrus server, there was one line interesting:
Cyrus SASL(-13): authentication failure: checkpass failed error
I thought it should have something to do with the passwords so I tried to enter the Cyrus server with:
# cyradm localhost
When I entered my password I could not connect. This was weird since I was 100% sure about the correctness. To be sure I resetted all my imap box passwords using:
# saslpasswd2 username
This didn’t fix it either. Then I read on a website about the saslauthd daemon not running. I restarted the service and everything worked as normal 🙂 My guess is that an Ubuntu update stopped the saslauthd daemon but did not restart it.
Bonjour (mDNS) via OpenVPN on Linux with Avahi-deamon
If you are a hacker, what is the thing you want to be on a Linux System? Root. You can try to access a ssh server with the root user. There is an option in the ssh server configuration which prevents a remote root login. This does not mean you can not become root, it means no one can directly login as the root user. So if you are logged in as Alice you can simple enter the “su” command to become root.
How we can prevent the remote root login is described below.
Next semester I need to code some programs for MINIX 3. Since I do not want to install this operating system on one of my machines I decided to use VMWare. The VMWare Player is free, and can be easily installed on Linux. At least that is what I thought…
When I bought my Samsung NC10, I noticed some weird behaviour of the sound card; when I plugged in my headphone the speakers still played sound as well. This morning I updated my Kubuntu running Samsung NC10 with a new kernel: 2.6.27-11-generic. After a reboot I noticed I finally had a headphone slider in KMixer.
I have three computers: MacBook Pro, Netbook and a PC. They all have their own data. It would be very nice if I had all my files on just one location (e.g. my server). The only problem is: how do I access these files in a secure way. SSH is an option, but does not quite fit my needs. The solution: NFS over a VPN. NFS fulfilled all my needs, but I do not want to open NFS to whole world through my router.
A VPN, gives me access to my home network and makes it possible for me to access all my files in a secure way. My server (an Asus EEE Box) runs Ubuntu Server, and there is a Linux version of OpenVPN! I thought installing OpenVPN should not be that hard; I just need to find the right tutorial.
Lately I was wondering if my Samsung NC10’s webcam worked under Kubuntu 8.10. I found this website which shows a tool called luvcview in order to show your webcam video. In order to install luvcview execute the following command: