This little trick allows you to share your terminal session with other users. For example, it could be helpful for making remote demos of GNU/Linux to your unexperienced users or to capture what you do in a session.
Archive for September, 2003
Sharing a terminal session
Sunday, September 28th, 2003Understanding USE flags
Sunday, September 28th, 2003One of the great features that Gentoo Linux provides to its users is the ability to control how packages are treated by setting individual and global settings whenever you build them.
This means that you can enable or disable some options when you are compiling your applications so that unneeded features such as X support or XML support could be avoided. (more…)
An introduction to lsof
Sunday, September 28th, 2003LiSt Open Files is a useful and powerful tool that will show you opened files. In Unix everything is a file: pipes are files, IP sockets are files, unix sockets are files, directories are files, devices are files, inodes are files…
So in this tangle of files lsof listst files opened by processes running on your system.
Now let’s start our quick tour and you’ll see the power of this tool.
OpenSSH Security Advisory (from openssh.org)
Tuesday, September 16th, 2003All versions of OpenSSH’s sshd prior to 3.7 contain a buffer management error. It is uncertain whether this error is potentially exploitable, however, we prefer to see bugs fixed proactively.
Verisign resolving everything
Tuesday, September 16th, 2003As you know, when somebody ask for a nonexistent domain name like www.dfadfafasdfas.com, obtains a message telling that the domain does not exist.
Well, from now and thanks to our friends of Verisign, you’ll be directed to one of their advertising sites. And thanks again to this people fight against spam, network troubleshooting, etc will be more difficult…
References:
Disabling reboot with Ctrl-Alt-Del
Sunday, September 14th, 2003The key combination Ctrl-Alt-Del will typically causes your system to reboot. If you take a look at the /etc/inittab fille, you’ll see something like this:
ca:12345:ctrlaltdel:/sbin/shutdown -r now
Preventing users from changing the owner of files
Wednesday, September 10th, 2003As you probably know the chown command provides a way for the owner of a file to change the ownership of this file. In some circumstances (i.e. you want to know who created each file on your systems) you will want to avoid this behaviour.
Disabling remote login
Wednesday, September 10th, 2003For security reasons, sometimes you’ll want to only allow root logins from the console on your Solaris box. Next tip shows you how to do it.
Simply edit /etc/default/login and add the following line:
CONSOLE=/dev/console
This will disable rlogin or telnet as root.
epm (Emerge/Ebuild? Package Manager)
Monday, September 8th, 2003If you come from an RPM based GNU/Linux distro, surely you are familiar with the RPM package manager. Gentoo Linux provides a similar tool for you to make the transition easier.
Martian address errors
Sunday, September 7th, 2003Martian address errors occur when anyone is trying to connect to your system from the internet with incorrect IP addresses, such as non-routable or spoofed IP addresses.
