Discuss January 2006

discuss@lists.centos.org

240 participants
336 discussions

selinux "strict" policy for Centos-4
by Jesse 04 Jan '06

04 Jan '06

Is anyone using the "strict" policy with Centos-4? If so which RPM are you using and where did you get it? I have searched a little and haven't been able to find it. Redhat site states that it's "not supported, but will be availble for download" I didn't see it in any of the extra/addon repos either. Thanks, --jesse

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RE: [CentOS] telnet to serial connection?
by Young, Darren 04 Jan '06

04 Jan '06

> so, it seems that what i need is a telnet server running on > my CentOS > box that, instead of calling /bin/login when someone connects, > instead starts up a serial session (i'd prefer something more > transparent than minicom, if possible). anyone have any good ideas > on how to do this? i had been thinking of creating a user for this > purpose whose shell was /usr/bin/minicom, but i'm open to other > suggestions. Assuming the network you're on is at least sort of secure, what about a netcat listener connected to /bin/cu ? If you wanted authentication on it as well, perhaps a small C program that netcat is connected to can do the authentication then spawn /bin/cu. As in: nc -l -p 23 -t -e /bin/cu -l <line> -s <speed> Just noticed my RHEL3 box doesn't have cu installed, but I'm betting it'd be in a uucp package somewhere. Change the port, change the line, speed, etc to match whatever you have running. Could always place netcat behind inetd and tcp_wrappers to secure down the inbound to a certain ip/subnet. Also, it looks like GNU Netcat actually has the ability to specify the source that's allowed.

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telnet to serial connection?
by Steve Huff 04 Jan '06

04 Jan '06

hello folks! here's my situation: i've got two WTI RPB+ remote power switches (essentially a 5-port power strip which you can control via serial interface to make each of the ports switch on and off independently). they work fine; i plug a DB-9 cable into the back of my machine, fire up minicom, and i have full control. however, my eventual plan is to use these as fencing devices for a small RHCS cluster i'm building, and so the fencing process will need to be scriptable. RHCS wants to fence by invoking a "/sbin/ fence_<whatever>" script that uses Net::Telnet to connect to the fencing device and then enters the commands. so, it seems that what i need is a telnet server running on my CentOS box that, instead of calling /bin/login when someone connects, instead starts up a serial session (i'd prefer something more transparent than minicom, if possible). anyone have any good ideas on how to do this? i had been thinking of creating a user for this purpose whose shell was /usr/bin/minicom, but i'm open to other suggestions. thanks, steve --- If this were played upon a stage now, I could condemn it as an improbable fiction. - Fabian, Twelfth Night, III,v

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Opteron, Athlon/64, and disaster recovery
by Benjamin Smith 04 Jan '06

04 Jan '06

Has anybody here taken a HDD configured with an Opteron system, and then put it into an Athlon/64 and had it work? Are they interchangeable, like an Athlon/32 and a P3/P4? -Ben -- "The best way to predict the future is to invent it." - XEROX PARC slogan, circa 1978

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crm solution
by Kai Sandsengen 04 Jan '06

04 Jan '06

I am searching for a crm solution for small business and private use. Can't find anything within the CentOS 4.2. Most important for me are: address book, comments and document organization. Any comments or recommendations appreciated. kai

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openssh port forward in centos 4
by Erick Perez 04 Jan '06

04 Jan '06

Hi, I use putty in my windows xp machine. ssh server in a centos 4. The centos 4 machine runs a web server that listens on port 1812, the centos machine is behind a firewall that allows tcp 22 connections only. I am on public internet. Can I forward/redirect/allow my web browser in windows to "see" the web page in port 1812 of the centos machine via the SSH connection? Thanks, -- ------------------------------------------- Erick Perez Linux User 376588 http://counter.li.org/ (Get counted!!!) Panama, Republic of Panama

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CentOS 64 on AMD 64 4600x2
by Brandon 04 Jan '06

04 Jan '06

Hello you brilliant minds, I am in need of some (probably basic) information concerning CentOS and the new dual core 64 bit systems. I realize that Linux was inherently built for multiple processor systems, as well as 64 bit systems. My first question is AMD doing anything special with doing all of the above on one chip that I need to know about before installing CentOS on my newest system? Also, my motherboard being a a8n32-sli has SATA II and RAID capabilities. Is there anything special about the SATA II that I need to set up to use the full capabilities of this hardware and CentOS. Any information would be better than what I have at the moment. Many thanks in advance. Brandon

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Re: [CentOS] x86 -64 sys...powernow-k8???
by David Thompson 04 Jan '06

04 Jan '06

"Bryan J. Smith" wrote: >More errata fixed in software, oh joy! > >Isn't there a way to just disable "PowerNow!"/"Cool'n Quiet" >altogether in the meantime? Disabling the 'cpuspeed' init will keep the system from adjusting the CPU speed. Dave Thompson UW-Madison

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network running at 10 or 100, how to tell
by Jerry Geis 04 Jan '06

04 Jan '06

How do you tell if your network card is running at 10 or 100 Meg? THanks, Jerry

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modem for dial IN
by Tom Brown 04 Jan '06

04 Jan '06

Hi Not entirely centos related but that what the boxes are running so here i go ;) 2 of our centos boxes run nagios for network monitoring and send email and paging alerts and are connected to standard phone lines using modems to send the pages. I'm looking for a way in the event of provider failure to login to these machines and so am looking at the ability to connect to the console over the modem. Any good how-to's on this ? Also interested to know real life seciruty risks etc. Is it possible to limit phone numbers that are abor to connect etc? thanks

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Discuss January 2006