Re: a VNC client suitable to monitor 15 desktops in 1 screen, automatic reconnect. Exists?
On 2/17/2010 11:21 AM, Andres Salazar wrote: Is there a VNC client out there that can permit me to run it 15 times simultaneously and scale them smaller so that I can view 15 little remote screens (at the same time) in my one big monitor? Also, is there a way to make it so if the PC is rebooted the client automatically reconnects ? The goal of this is to have one big monitor to view in realtime what people are doing in their PCs. Without interaction from me with the mouse/keyboard.. all I need to do is watch. A plus if this VNC client is compatible with MacOS/windows That's pretty much what iTalc does in a nutshell: http://italc.sourceforge.net/ Runs on Linux and Windows, but not on OS X. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4b7c68fa.1080...@markshroyer.com
Re: sudo vs. su (was Re: new to list, new to debian, new to linux)
On Fri, May 22, 2009 at 09:45:05PM +, Glyn Astill wrote: 'ALL=(ALL) ALL' is no more dangerous than having the 'su' binary available. The NOPASSWD option is not the default. No. For su they'd have to enter the root password, for sudo su they'd just have to enter the password of the current user and they are root. And what I'm saying is that in the most likely attack scenario for this type of user--remote exploit of an essentially single-user system through an application running under a regular account, such as a web browser or a word processor--it isn't magically harder for an attacker to obtain the root password than it would be to obtain the regular user's password. Both would typically have to be obtained through the same process. If you're worried about brute-force attacks on a user's password, that's one thing. But most basic desktop systems, such as the one the OP was describing, are not running SSH or other remote-login services. With the type of attack vector this type of user should be concerned about, two passwords does not equal twice the security. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Xorg starts only manually
On Fri, May 22, 2009 at 10:00:25AM +0300, Luc Saffre wrote: after upgrading my laptop to Lenny, the Gnome desktop no longer starts automatically when I boot up. It starts correctly if i then log in at the console and run `startx`. I tried `dpkg-reconfigure xserver-xorg` without change. I didn't see anything anormal in /var/log/Xorg.0.log. Any suggestions about the possible reason and what I can try next? Is the file /etc/init.d/gdm present on your system? If so, try running sudo /etc/init.d/gdm start when you log in to bring up the login screen. If this works, then run sudo update-rc.d gdm defaults to make sure that the runlevel symbolic links are installed. On the other hand, if the GDM init script is missing for some reason, try installing the package gdm. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
sudo vs. su (was Re: new to list, new to debian, new to linux)
On Fri, May 22, 2009 at 06:56:18AM -0700, Thorny wrote: You've just advised an obvious newbie (stated in post) on how to make his system insecure. Giving ALL=(All) ALL rights to a normal user is pretty much the same as running as root and is not recommended on a Debian system. It is what was asked for, sort of, but he may not have have realized the significance. I have to call shenanigans on this. What's the threat model, exactly, where it is safer to have a regular user su'ing to root than to have him use sudo to the same effect? Suppose that an attacker has managed to execute code under a user's account (say, through a web browser exploit), and wants to use this as a stepping stone to root. If the targeted account is in /etc/sudoers with ALL=(ALL) ALL (but *not* NOPASSWD, obviously), then the attacker still needs to capture the user's password before he can escalate privileges through sudo. If the targeted user uses su instead of sudo (and gksu instead of gksudo), the situation is no better and no worse: if the attacker can get code to run under the user's account, then he can attempt to log the user's keystrokes until he obtains the root password. It *would* be safer to use neither su nor sudo, and only have root log in on a separate, secure console, thereby eliminating the possibility of password sniffing from a compromised regular account. However, few desktop Linux users actually run their computers this way. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Recommendations for Mini PCIe 802.11b/g card?
My laptop's Intel 3945BG card won't connect to half of the APs that I want it to--and even when it does work, I can only squeeze about 9 Mbps out of it in 802.11g mode. So I'd like to replace it with something that works better with Debian Lenny. Can anyone recommend a really rock-solid 802.11b/g Mini PCI Express card that has an equally solid driver in Lenny? (I've read the compatibility lists, but there's nothing like first-hand experience to say what works and what doesn't. E.g., on paper my 3945BG should have been fine, but in practice it turned out to be problematic.) My wish list: * 802.11b/g support * WPA2 * Compatibility with Lenny's 2.6.26 kernel * Non-wholesale availability in the United States * 802.11n support a plus, but not required Thanks for any advice! -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: What hardware to use for Debian Firewall/Gateway or server?
On Thu, May 21, 2009 at 09:31:14PM +0200, Csanyi Pal wrote: I have at my home a small network: firewall/gateway: Pentium II Class PC box with 64 MB RAM, 5,1 GB HDD server : Pentium IV Class PC box with 2 GB RAM, 60 GB HDD desktop : Pentium IV Class PC box with 2 GB RAM, 2 * 320 GB HDD On all these PC boxes run Debian GNU/Linux: firewall/gateway: Etch Server : Etch desktop : Lenny The firewall has a buggy hardware and can't to install on it Lenny so I decide to buy a new hardware for firewall/gateway. I think about that that I could to use the server box as a firewall/gateway and the new PC box for the server.. What is the recommended new hardware for firewall/gateway or for a web, mail, file printer server at a small home network? Any advices will be appreciated! As for replacing the gateway itself: mine runs OpenBSD rather than Linux, but my home router is a PC Engines Alix 2d3: http://pcengines.ch/alix2d3.htm The downside to this kind of embedded system, versus standard PCs like you're currently using, is that you can't simply stick in a CD and boot up the Debian installer... I installed OpenBSD on mine by running VMware Workstation on my laptop with the board's CF card plugged in and configured as a physical volume, then transplanting the card to the Alix board once everything was up and running. Installing using the serial console and PXE boot is another option, but this route entails setting up a boot server first. Either way, there's a bit more work involved than with a repurposed PC. Also, the Alix board doesn't ship with a CMOS clock battery holder installed, so you'll need to solder one in yourself if you want the board to keep time while unplugged. But the solder points are clearly marked on the board, and battery holders are cheap. That said: what all this extra effort gets you is an inexpensive, small, silent and cool-running box with three Ethernet adapters plenty of horsepower for running a firewall and VPN. And there are no moving parts (although I imagine my CF card will die eventually, since I have it mounted read-write). Also, the while thing only consumes about 5W of power. Soekris Engineering is another popular manufacturer of similar general-purpose embedded PCs suitable as small gateways, and there are other companies too. And you'd be hard-pressed to find one that *doesn't* work with Linux :) -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: cups virtual printer for PDF and print to file path
On Tue, May 05, 2009 at 09:47:12PM -0400, H.S. wrote: Celejar wrote: My print to file box (Sid, IW 3.0.9) offers me a choice of ps or pdf. Mine doesn't. I too have the same version (3.0.9-1). I wonder if I am missing some other package which provides this functinality in iceweasel. As far as I know, the save to PDF functionality provided in Ubuntu (and I assume Sid is the same way) is through gtkprint, not CUPS-PDF. The version of GTK in Lenny does not provide this, I don't know about Squeeze. CUPS-PDF, on the other hand, can't pop up a dialog box for the user, since it's just a CUPS backend. Hence the need to set it up in advance to save to a given directory. However, the CUPS-PDF method has the advantage of working with all applications; not all programs use gtkprint. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: cups virtual printer for PDF and print to file path
On Wed, May 06, 2009 at 09:35:44PM -0400, H.S. wrote: Mark Shroyer wrote: As far as I know, the save to PDF functionality provided in Ubuntu (and I assume Sid is the same way) is through gtkprint, not CUPS-PDF. The version of GTK in Lenny does not provide this, I don't know about Squeeze. hmm... apt-cache searching gtkprint in Testing and in Unstable does not give me anything. Sorry for being unclear: it would have been more precise for me to refer to gtkprint as GtkPrintOperation, i.e. the GTK+ printing API. It isn't a separate package in Debian, it's part of libgtk2.0. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: stopwatch/worktime program?
On Sun, May 03, 2009 at 03:48:18PM +0300, Micha Feigin wrote: I'm looking for some program to follow my work time on different projects, preferably something that can plug into the xfce, or if not the gnome panel. I'm working on different projects for different people and I need to report work hours and it's a bit hard for me to follow the times by writing them down as I tend to work on and off for short times during the day. I want something like a stopwatch, preferable that would be able to keep a few of them around. If they can later give me an history, it's even better. If you don't mind a command line solution, there's timeclock: http://zwiki.org/repos/ledger/doc/ledger/Using-timeclock-to-record-billable-time.html This is actually an auxiliary part of Jason Wiegley's ledger CLI accounting system; it outputs a plaintext log that can be used as input for ledger itself. Emacs and Vim integration is provided. Ledger is packaged in Testing (apt-get install ledger). If like me you're running Lenny, you can build it from source after downloading here: http://github.com/jwiegley/ledger/ There is no xfce or gnome panel integration that I am aware of, however. -- Mark Shroyer http://markshroyer.com/contact/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
