Re: For My Edification
On Mon, 02 May 2011 20:07:54 -0500, Kevin Kinsey k...@daleco.biz wrote: On Mon, 2 May 2011 18:47:11 -0400, Louis Marrerolouis_marr...@yahoo.com wrote: Being familiar only with general knowledge on the Windows XP that I use daily, I've gone on the web to find out more information on some of the terms used by this programmer, such as BSD, Berkeley Software Distribution, from which FreeBSD is derived. There are other BSDs. shell terminal, A dialog terminal that runs an interactive shell, a command-line processor that you use to issue commands to the system. The term's origin is the terminal, a stand-alone device (often called dumb terminal) that served the same purpose - communicate with the computer - without being a real computer. Windows systems also have a command interpreter, I didn't claim they haven't. :-) though (arguably) it's hardly used and considered arcane by most users. On all the NT and later systems this is cmd.exe. There also is an additional tool called something like Power shell (not fully sure, I'm not a Windows person) that is more like a UNIX shell than CMD.EXE, which has its origins in the COMMAND.COM of DOS - not the _real_ DOS of course. :-) Using a command line interpreter in Windows violates the concept of that specific environment, so its hardly known that it even does exist. Also detaching control from a Windows system isn't something typical (e. g. starting jobs on a computer that you're currently not sitting infront of), but I think it's possible to do so, via some kind of remote access, RDP-based. At least it's comparable. My very basic question is this: Is it even possible to install a second OS, like FreeBSD on an existing Windows-based computer? That's easily possible. You need to do a proper partitioning of the hard disk and then install FreeBSD into a free partition. You can also make use of so-called Live systems, a thing not common to Windows: This is an installed and configured operating system that you boot from a CD, DVD or USB stick. You do NOT have to install it. And this is the only *real* interesting input. Download Sun's Virtual machine software, VirtualBox (I believe they just released version 4.0.6) and you can set up a FreeBSD machine *inside* your windows machine with no need to add any additional hardware or do any repartitioning of the hard disk. Good advice, I didn't think of this primarily, simply because I'm neither a multi-booter nor a user of software that runs on any Windows. Using a virtualized environment gives you the chance NOT to deal with hardware issues in the first place, while keeping your disk content fully intact. System power and disk space shouldn't be any problem today. This reminds me to the following link I have in my bookmarks box: How about trying VirtualBSD? http://www.virtualbsd.info/ Although the homepage states it's primarily intended for VMWare, it should also work with VirtualBox (see navigation tab on the right). I'd be grateful for any information. I may point you to the EXCELLENT documentation online: The FreeBSD Handbook and the FAQ. Those are QUALITY material not comparable to anything you find in Windows land. If you're dealing with IT matter, you'll have no problem to determine _what_ to read. Those resources can be easily accessed through the FreeBSD web page, but can also used locally (maybe on systems without Internet or web access). +1 for the FreeBSD Handbook. Ten years ago, I downloaded it, and now scores of people in my area think I'm the guru to match all 'Nix gurus. Of course, they're all Windows users ;-) I would like to add the excellent manpages of the system. Unlike many Linusi, those manpages are kept current by the FreeBSD operating system developers and their documentation assistants. So whenever you're not fully sure about something, use man something. This applies to commands, configuration files, kernel interfaces, library calls and maintenance procedures. *Everything* is well documented. And you don't even need Internet access to get that information, as the manpage doesn't direct you to some arbitrary Wiki on the web. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Get the dev.cpu.0.temperature from sysctl(3)
Hello, I would like to get the dev.cpu.0.temperature node from sysctlbyname(). It seems this node is an opaque type but how to check it and store it to the appropriate variable type ? Cheers, -- David Demelier ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: For My Edification
On Mon, May 02, 2011 at 06:47:11PM -0400, Louis Marrero wrote: Here are some questions that can help my understanding: 1. I know that Windows is an OS, and Linux/Unix as well as FreeBSD are other Operating System. My very basic question is this: Is it even possible to install a second OS, like FreeBSD on an existing Windows-based computer? Others have given you fine answers so I'll just point out something I think might be a good advice for a Unix novice: if you decide to install a Linux try to go with one of the more traditional distributions (I've recently read someone call then time wasters :)) like Slackware, Arch Linux or similar. The reason is they don't encourage you do do stuff the Windows way (like, for example, Ubuntu does). If you need to learn about Unix you'll learn much faster and better in such an environment. Both Slackware and Arch are BSD styled which is a little unusual in the Linux land. Of course, it's probably better to get the real thing and install one of the BSDs, FreeBSD probably being the sanest choice for a newcomer because of it's outstanding documentation (The FreeBSD Handbook is really a clear step-by-step guide to FreeBSD, and doesn't assume any prior Unix knowledge). 2. Is it possible to link my Windows laptop to a web server with Unix or FreeBSD and exercise Unix/Linux commands. If so, how is that done? There is a number of servers that offer free shell accounts (a web server is a different thing) so you can practice and learn even without installing anything but PuTTY (an SSH client for Windows). I've never used any of them so I can't recommend any particular, but you can find a list of such servers on http://shells.red-pill.eu/ (it seems there are a few of them with FreeBSD). -- What is love but a second-hand emotion? -- Tina Turner ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: For My Edification
--As of May 3, 2011 9:46:04 AM +0200, Polytropon is alleged to have said: I would like to add the excellent manpages of the system. Unlike many Linusi, those manpages are kept current by the FreeBSD operating system developers and their documentation assistants. So whenever you're not fully sure about something, use man something. This applies to commands, configuration files, kernel interfaces, library calls and maintenance procedures. *Everything* is well documented. And you don't even need Internet access to get that information, as the manpage doesn't direct you to some arbitrary Wiki on the web. :-) --As for the rest, it is mine. And, vice-versa, you don't need a FreeBSD box to read them, if you have the web: They are all posted online at http://www.FreeBSD.org/cgi/man.cgi for you to read. Daniel T. Staal --- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. --- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
access an extended partition
Good morning, I have installed FreeBSD in a multiboot way on my PC but till now I can't access my extended partition. Indeed, on my PC I have 4 primary partitions that I organized like this: Primary partition 1 : WinRE of windows vista Primary partition 2 : windows Vista Primary partition 3 : FreeBSD Primary partition 4 that is the extended one contains: Logical partition 1 : windows XP Logical partition 2 : a Gnu/Linux distribution Logical partition 3 : Data So, the problem is that I can't access the extended partion especially the Data one. This is my first problem. The second one is this: I'd like to change my profil picture (on my logging screen-I'm using KDE) and put my personal photo for example; I have tried but kdbm inducates that it 's impossible to do it. These are the problems I've encountered, so I hope I were concise. Thank you very much for being so kind and help me to solve these problems. Best Regards ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: For My Edification
Daniel Staal writes: I would like to add the excellent manpages of the system. Unlike many Linusi, those manpages are kept current by the FreeBSD operating system developers and their documentation assistants. So whenever you're not fully sure about something, use man something. This applies to commands, configuration files, kernel interfaces, library calls and maintenance procedures. *Everything* is well documented. And you don't even need Internet access to get that information, as the manpage doesn't direct you to some arbitrary Wiki on the web. :-) And, vice-versa, you don't need a FreeBSD box to read them, if you have the web: They are all posted online at http://www.FreeBSD.org/cgi/man.cgi for you to read. It is worth noting there are reference works - intended for those who already know something about a topic/program - not tutorials intended to teach concepts and terminology on how to do a specific task. At this point I usually recommend the most recent edition of _/The Unix System Administration Handbook/_. It is well-written; it covers flavors other than FreeBSD; and it goes into enough of the conceptual infrastructure to be very useful in diagnosing some kinds of breakage. Robert Huff ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
OT: Security question (openssl vs openssh)
Everyone, I am looking into setting up a webserver to hold some very sensitive information. I am trying to figure out which is more secure, forcing any web connections to be done using an ssh tunnel or forcing ssl. I have not been able to figure out if one is definitively much more secure than another or if they are close to the same. I would have initially thought the ssh tunnel was more secure but knowing that ssl can use AES-256, I am now wondering if that isn't adding a complexity for little extra security. Thanks in advance Mark Moellering ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Security question (openssl vs openssh)
On Tue, May 3, 2011 at 10:22 AM, Mark Moellering m...@msen.com wrote: Everyone, I am looking into setting up a webserver to hold some very sensitive information. I am trying to figure out which is more secure, forcing any web connections to be done using an ssh tunnel or forcing ssl. I have not been able to figure out if one is definitively much more secure than another or if they are close to the same. I would have initially thought the ssh tunnel was more secure but knowing that ssl can use AES-256, I am now wondering if that isn't adding a complexity for little extra security. Thanks in advance Mark Moellering I don't think there is any extra security in tunneling an HTTP connection over SSH. Use authentication is a different matter, but the encryption algorithms are the same. Most web servers have an option of configuring what ciphers are allowed (same as OpenSSH, by the way), so you can easily restrict HTTPS connections to just AES-256 or any other cipher you prefer. The bigger issue will be how to prevent MITM attacks. With SSH, you have to make sure that the clients have the correct public key ahead of time or provide a way to verify the key during the first connection. With HTTPS you can get a certificate from an existing CA, which allows clients to verify the server identity without any extra work on your part. As an alternative, you can create your own CA and distribute the public key to the clients, which is pretty similar to SSH, except that it's much easier to change the server certificate later on. - Max ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Security question (openssl vs openssh)
On 5/3/11 10:22 AM, Mark Moellering wrote: Everyone, I am looking into setting up a webserver to hold some very sensitive information. I am trying to figure out which is more secure, forcing any web connections to be done using an ssh tunnel or forcing ssl. I have not been able to figure out if one is definitively much more secure than another or if they are close to the same. I would have initially thought the ssh tunnel was more secure but knowing that ssl can use AES-256, I am now wondering if that isn't adding a complexity for little extra security. Thanks in advance Mark Moellering I'd say that that's a really hard problem to answer definitively, but my gut reaction is that the less complex solution is less likely to involve configuration screw-ups which compromise security. Particularly if other administrators are or will be involved, that which is too clever just begs for innocent, even if clueless, changes that compromise assumptions upon which the security depends. In any case, I'd worry more about how I handle user authentication and authorization than squeezing the last little drop of warm fuzzies out of the encryption setup. To the extent that if you already have a fully trusted infrastructure in place for ssh keys, you might want to consider using ssh tunnels for that reason alone. Or, to put it another way, if your security is going to fall, it's much more likely that it's going to involve a poor configuration choice, a user that screws up big time, or a back door to the data, than a successful technical attack against TSL or SSH. --Jon Radel j...@radel.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: For My Edification
On Tue, May 03, 2011 at 09:46:04AM +0200, Polytropon wrote: There also is an additional tool called something like Power shell (not fully sure, I'm not a Windows person) that is more like a UNIX shell than CMD.EXE, which has its origins in the COMMAND.COM of DOS - not the _real_ DOS of course. :-) It's *not* really much like a Unix shell, actually. For instance, it doesn't have the Unix pipeline (which cmd.exe *does* have). Instead, it assumes everything you'll be passing around in it is basically a serialized object in the tradition of the .NET framework. It is, in short, more of a glue code development tool for .NET developers than a proper command shell. You can abuse it as a command shell if you want to, but in my experience the REPL for the R6RS (Scheme) implementation called Ypsilon serves as a better command shell than PowerShell. -- Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ] pgpanbM1ozc7r.pgp Description: PGP signature
/etc/newsyslog.conf and denyhosts
What is the correct way to rotate denyhosts log files? In /etc/newsyslog.conf I have: /var/log/denyhosts 644 12 * $M1D0 JC /var/run/denyhosts.pid However, denyhosts does not log in the new file. -- Janos Dohanics ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Security question (openssl vs openssh)
On Tue, May 03, 2011, Mark Moellering wrote: Everyone, I am looking into setting up a webserver to hold some very sensitive information. I am trying to figure out which is more secure, forcing any web connections to be done using an ssh tunnel or forcing ssl. I have not been able to figure out if one is definitively much more secure than another or if they are close to the same. I would have initially thought the ssh tunnel was more secure but knowing that ssl can use AES-256, I am now wondering if that isn't adding a complexity for little extra security. Our solution for critical services like this is to run the service only on a private LAN segment which is available from the outside world only through an OpenVPN connection. The OpenVPN connection requires unique keys for each client which are easily revoked if a laptop is lost or stolen or on employee termination. It also isolates the web service from other external attacks via insecure PHP scripts and such. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax:(206) 232-9186 Skype: jwccsllc (206) 855-5792 If the personal freedoms guaranteed by the Constitution inhibit the government's ability to govern the people, we should look to limit those guarantees. -- President Bill Clinton, August 12, 1993 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Unix basics (was Re: For My Edification)
On 2 May 2011 19:37, Chris Hill ch...@monochrome.org wrote: On Mon, 2 May 2011, Louis Marrero wrote: Being familiar only with general knowledge on the Windows XP that I use daily, I've gone on the web to find out more information on some of the terms used by this programmer, such as BSD, shell terminal, nc -u, etc. Since my friend knows that my computer is strictly MS Windows, when my friend writes down something like In a shell terminal type nc -u 10.101.97.200 . it makes me wonder what I'm missing. When he says shell terminal, think command prompt. nc is netcat, but I didn't know Windows had that. In your friend's defense, I use Windows every day (at work) and I can't always remember what things are called. Especially since MS changes terminology every now and then, evidently just for the hell of it. 1. I know that Windows is an OS, and Linux/Unix as well as FreeBSD are other Operating System. My very basic question is this: Is it even possible to install a second OS, like FreeBSD on an existing Windows-based computer? Yes. You can either set it up for dual boot - either by adding a second hard drive, or by partitioning your existing drive if there's space - or you can run another OS within a virtual machine of some sort. The latter would need a pretty fast machine if the guest OS is to have decent performance. Having said that, I found it easier to get started using an old PC that was too slow to run a modern Windows, but perfectly fine for a GUI-free BSD. I'm typing this on an old Dell that I bought on ebay. Another possibility is to install cygwin ( http://www.cygwin.com/ ) which will give you a rather goodly number of unix/gnu programs, though they have the unfortunate habit of defaulting to bash, and if you install a compiler and some basic build tools a nigh-unto infinite number of programs become available. That said, buying an older, cheap machine to install FreeBSD on is probably the easiest. And who doesn't enjoy buying more stuff? 2. Is it possible to link my Windows laptop to a web server with Unix or FreeBSD and exercise Unix/Linux commands. If so, how is that done? The server's admin would have to give you a shell account. Most commercial ISPs won't do that, but maybe your friend will. With PuTTY, you can connect to any unix/linux/bsd machine with sshd enabled (though you need an account on that machine to actually log in). ( http://www.chiark.greenend.org.uk/~sgtatham/putty/ ) X forwarding onto a windows machine ( http://www.math.umn.edu/systems_guide/putty_xwin32.html ) may be best reserved for the 201 course. -- -- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: /etc/newsyslog.conf and denyhosts
On Tue, 3 May 2011 13:03:25 -0500 (CDT) Robert Bonomi bon...@mail.r-bonomi.com wrote: From owner-freebsd-questi...@freebsd.org Tue May 3 12:17:12 2011 Date: Tue, 3 May 2011 12:40:37 -0400 From: Janos Dohanics w...@3dresearch.com To: freebsd-questions@freebsd.org Subject: /etc/newsyslog.conf and denyhosts What is the correct way to rotate denyhosts log files? In /etc/newsyslog.conf I have: /var/log/denyhosts 644 12 * $M1D0 JC /var/run/denyhosts.pid However, denyhosts does not log in the new file. Denyhosts has to be informed that the logfile has changed, so that it can close and re-open the logfile. It may be possible by sending it a 'signal', or you may have to kill/restart it. See the documentation for denyhosts. Newsyslog itself does _not_ notify/restart any daemons you have to do this yourself. Thank you, I'll just set up a cron job to restart it -- Janos Dohanics ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: /etc/newsyslog.conf and denyhosts
On 5/3/11 2:32 PM, Janos Dohanics wrote: Denyhosts has to be informed that the logfile has changed, so that it can close and re-open the logfile. It may be possible by sending it a 'signal', or you may have to kill/restart it. See the documentation for denyhosts. Newsyslog itself does _not_ notify/restart any daemons you have to do this yourself. From the man page for newsyslog.conf: path_to_pid_file This optional field specifies the file name containing a daemon's process ID or to find a group process ID if the U flag was speci- fied. If this field is present, a signal_number is sent the process ID contained in this file. If this field is not present, then a SIGHUP signal will be sent to syslogd(8), unless the N flag has been specified. This field must start with `/' in order to be recognized properly. signal_number This optional field specifies the signal number that will be sent to the daemon process (or to all processes in a process group, if the U flag was specified). If this field is not present, then a SIGHUP signal will be sent. --Glenn ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Enabling composite-out in a video card.
OK, so in what can only be described as a ridiculous shot in the dark... I've got my Macbook running as a server under my TV, and I was trying to connect the video-out to the TV. However... my mini-DVI-VGA plugged into the VGA-composite adaptor isn't working (surprise surprise) Is there a command can put in to force TV-out through VGA (through DVI?)? Chris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Enabling composite-out in a video card.
From: Chris Rees utis...@gmail.com Subject: Enabling composite-out in a video card. To: freebsd-questions@freebsd.org Date: Tuesday, May 3, 2011, 2:06 PM OK, so in what can only be described as a ridiculous shot in the dark... I've got my Macbook running as a server under my TV, and I was trying to connect the video-out to the TV. However... my mini-DVI-VGA plugged into the VGA-composite adaptor isn't working (surprise surprise) Is there a command can put in to force TV-out through VGA (through DVI?)? Chris read the man page for the Xorg driver, you may need to enable it in the xorg.conf. I guess you are running freeBSD??? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Can I bridge the same subnet across a VPN?
Hi, Is it possible to join two sites with the same subnet across a VPN? I have two sites that have the same subnet/mask. I need these two separated networks to behave as one across a VPN. All configuration examples I've come across so far assume that each site will have a different subnet. Eg, one site with 192.168.1.0/24 the other with 192.168.2.0/24 I control the firewalls at each end. One will be a pfsense firewall, the other an existing FreeBSD 7.4 system. For example I would want to be able to do the following: Site A Site B -- -- Firewall A 10.1.1.3 - Firewall B 10.1.1.4 | | Subnet: 192.168.20.0/24 Subnet: 192.168.20.0/24 Happy to use either IPSec or OpenVPN to actually encrypt the traffic. Kind regards, Geoff ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Enabling composite-out in a video card.
On 3 May 2011 20:21, Mark redt...@sbcglobal.net wrote: From: Chris Rees utis...@gmail.com Subject: Enabling composite-out in a video card. To: freebsd-questions@freebsd.org Date: Tuesday, May 3, 2011, 2:06 PM OK, so in what can only be described as a ridiculous shot in the dark... I've got my Macbook running as a server under my TV, and I was trying to connect the video-out to the TV. However... my mini-DVI-VGA plugged into the VGA-composite adaptor isn't working (surprise surprise) Is there a command can put in to force TV-out through VGA (through DVI?)? Chris read the man page for the Xorg driver, you may need to enable it in the xorg.conf. D'oh, thanks! I guess you are running freeBSD??? Oh dear, I must have looked really clueless. Yes I am! Chris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Get the dev.cpu.0.temperature from sysctl(3)
On Tue, May 03, 2011 at 10:12:33AM +0200, David Demelier wrote:
Hello,
I would like to get the dev.cpu.0.temperature node from sysctlbyname().
It seems this node is an opaque type but how to check it and store it to
the appropriate variable type ?
The best way to determine this is to read the source. I did that some time ago
to fix the temperature display in sysutils/conky.
The sysctl dev.cpu.0.temperature returns an integer, see
/sys/dev/coretemp/coretemp.c (look for the string temperature), and you'll
see:
/*
* Add the temperature MIB to dev.cpu.N.
*/
sc-sc_oid = SYSCTL_ADD_PROC(device_get_sysctl_ctx(pdev),
SYSCTL_CHILDREN(device_get_sysctl_tree(pdev)),
OID_AUTO, temperature,
CTLTYPE_INT | CTLFLAG_RD,
dev, 0, coretemp_get_temp_sysctl, IK,
Current temperature);
If you look at the definition of coretemp_get_temp_sysctl in the same file:
coretemp_get_temp_sysctl(SYSCTL_HANDLER_ARGS)
{
device_t dev = (device_t) arg1;
int temp;
temp = coretemp_get_temp(dev) * 10 + TZ_ZEROC;
return (sysctl_handle_int(oidp, temp, 0, req));
}
So the returned value is an 'int'. Note that TZ_ZEROC is #defined as 2732 at
the beginning of the file. The returned value is therefore the temperature
in Kelvin times ten.
On my machine, it gives e.g.:
sysctl dev.cpu.0.temperature
dev.cpu.0.temperature: 46.0C
If we check the 'raw' return value;
sysctl -b dev.cpu.0.temperature|hd
78 0c 00 00 |x...|
0004
Running this value with the abovementioned algorithm in reverse through a
calculator, we get
(0x0c78-2732)/10 = 46°C
Hope this helps.
Roland
--
R.F.Smith http://www.xs4all.nl/~rsmith/
[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
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Re: Can I bridge the same subnet across a VPN?
On Tue, May 3, 2011 at 15:19, Geoff Roberts ge...@apro.com.au wrote: Is it possible to join two sites with the same subnet across a VPN? Yes. I have two sites that have the same subnet/mask. I need these two separated networks to behave as one across a VPN. That's understandable. You may want to consider breaking the /24 into two /25s, one at each site, and routing the connection instead but that's not necessary and you can indeed use a bridge with few issues. Happy to use either IPSec or OpenVPN to actually encrypt the traffic. We've done it as a demo of what you can do with OpenVPN, it's trivial once you get some configuration issues straight in your head (or that's how it worked for me). To bridge in OpenVPN, take a look at: http://openvpn.net/index.php/open-source/documentation/miscellaneous/76-ethernet-bridging.html kmw ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Get the dev.cpu.0.temperature from sysctl(3)
On 03/05/2011 21:40, Roland Smith wrote:
On Tue, May 03, 2011 at 10:12:33AM +0200, David Demelier wrote:
Hello,
I would like to get the dev.cpu.0.temperature node from sysctlbyname().
It seems this node is an opaque type but how to check it and store it to
the appropriate variable type ?
The best way to determine this is to read the source. I did that some time ago
to fix the temperature display in sysutils/conky.
The sysctl dev.cpu.0.temperature returns an integer, see
/sys/dev/coretemp/coretemp.c (look for the string temperature), and you'll
see:
/*
* Add the temperature MIB to dev.cpu.N.
*/
sc-sc_oid = SYSCTL_ADD_PROC(device_get_sysctl_ctx(pdev),
SYSCTL_CHILDREN(device_get_sysctl_tree(pdev)),
OID_AUTO, temperature,
CTLTYPE_INT | CTLFLAG_RD,
dev, 0, coretemp_get_temp_sysctl, IK,
Current temperature);
If you look at the definition of coretemp_get_temp_sysctl in the same file:
coretemp_get_temp_sysctl(SYSCTL_HANDLER_ARGS)
{
device_t dev = (device_t) arg1;
int temp;
temp = coretemp_get_temp(dev) * 10 + TZ_ZEROC;
return (sysctl_handle_int(oidp,temp, 0, req));
}
So the returned value is an 'int'. Note that TZ_ZEROC is #defined as 2732 at
the beginning of the file. The returned value is therefore the temperature
in Kelvin times ten.
On my machine, it gives e.g.:
sysctl dev.cpu.0.temperature
dev.cpu.0.temperature: 46.0C
If we check the 'raw' return value;
sysctl -b dev.cpu.0.temperature|hd
78 0c 00 00 |x...|
0004
Running this value with the abovementioned algorithm in reverse through a
calculator, we get
(0x0c78-2732)/10 = 46°C
Hope this helps.
Roland
Thanks a lot!
I had a look into the src and I saw the format IK used to register the
sysctl node but I was also surprised that IK was not defined in man
sysctl(9)
But I finally understood that K should means Kelvin :)
Cheers,
--
David Demelier
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FreeBSD 9.0-RELEASE
Hi All, When will FreeBSD 9.0-RELEASE be available? I remember reading that it would be ready in May 2011. I just wanted to see if it was on schedule or not. Thanks, Mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0-RELEASE
On 3 May 2011 15:11, Mike Seda mas...@stanford.edu wrote: Hi All, When will FreeBSD 9.0-RELEASE be available? I remember reading that it would be ready in May 2011. I just wanted to see if it was on schedule or not. Dr. Who has been running it for two regenerations already. Get with the program, Nyssa! -- -- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0-RELEASE
On Tue, May 03, 2011 at 12:11:07PM -0700, Mike Seda wrote: Hi All, When will FreeBSD 9.0-RELEASE be available? I remember reading that it would be ready in May 2011. I just wanted to see if it was on schedule or not. I don't remember seeing that. Anyway, go to the FreeBSD Release Engineering web site for information. http://www.freebsd.org/releng/index.html jerry Thanks, Mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
How to delete a line from setenv?
Hi list, This is a very basic question, but how do I delete a value from setenv? I screwed up when changing a few things...don't ask. Thanks for any help! -Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
RE: How to delete a line from setenv?
-Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd- questi...@freebsd.org] On Behalf Of Alexander Lardner Sent: Tuesday, May 03, 2011 5:43 PM To: freebsd-questions@freebsd.org Subject: How to delete a line from setenv? Hi list, This is a very basic question, but how do I delete a value from setenv? I screwed up when changing a few things...don't ask. Thanks for any help! unsetenv -- Devin _ The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you. _ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0-RELEASE
--As of May 3, 2011 5:33:23 PM -0400, Jerry McAllister is alleged to have said: I don't remember seeing that. Anyway, go to the FreeBSD Release Engineering web site for information. http://www.freebsd.org/releng/index.html --As for the rest, it is mine. While that *should* be good advice, the most current 'upcoming releases' it lists are 8.2 and 7.4, both released a couple of months ago now. (Which it does say, at least.) So it's really fairly useless at the moment. Basically, as far as I can tell, 9 and/or 8.3 will come out when they come out. No sooner and no later. Daniel T. Staal --- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. --- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0-RELEASE
On Tue, 03 May 2011 20:48:55 -0400 Daniel Staal dst...@usa.net wrote: Basically, as far as I can tell, 9 and/or 8.3 will come out when they come out. No sooner and no later. I think the plan for 9.0 is some time this summer. -- Bruce Cran ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
