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34753 discussions

NTP server
by Scott Ehrlich 04 Feb '08

04 Feb '08

I have a Centos 5 64-bit server that has ntp service enabled. Windows XP with SP2 cannot properly sync to it for time, but can communicate with it via samba, ssh, and anything else. I also disabled the Windows Firewall. The C5 system does not have any firewall enabled. Other C5 workstations can successfully sync to it via ntpdate. What else could cause the XP machine to not be able to time sync with the C5 server? Thanks. Scott

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Re: [CentOS] Re: Monitor power save question
by David G. Miller 04 Feb '08

04 Feb '08

"nate" <centos(a)linuxpowered.net> wrote: > David G. Miller wrote: > > >> > >> > Section "Device" >> > Identifier "Videocard0" >> > Driver "vesa" >> > EndSection >> > > [..] > > >> > and the video card is (this is a single card that shows up twice in lspci): >> > >> > 04:00.0 VGA compatible controller: ATI Technologies Inc RV516 [Radeon >> > X1300/X1550 Series] (prog-if 00 [VGA]) >> > > any particular reason why your using the vesa driver on what seems to > be a fairly recent ATI card instead of the ATI specific drivers? Perhaps > the vesa driver doesn't work as well with power management(never used it > myself for very long). > > I'd try the ATI drivers and see if it fixes the behavior, you'll probably > get much better performance at the same time, with perhaps a bit less > stability depending on what you do. > > nate It's what the install configurator came up with and the ati driver doesn't work with this video card (output from startx): ... (WW) RADEON: No matching Device section for instance (BusID PCI:4:0:1) found (WW) R128: No matching Device section for instance (BusID PCI:4:0:1) found (EE) No devices detected. Fatal server error: no screens found XIO: fatal IO error 104 (Connection reset by peer) on X server ":0.0" after 0 requests (0 known processed) with 0 events remaining. I like getting a new install stable and fully functional with open source drivers before introducing perturbations like using a proprietary display driver. That being said, I just installed the ATI proprietary driver. So far the system is stable. I'll see whether the monitor correctly goes to a low power mode tonight. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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kiskstart question
by Jerry Geis 03 Feb '08

03 Feb '08

Is there a way that using kickstart I can tell it once its done install to go right ahead and do a "yum update" Thanks, Jerry

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DVD support on CentOS 5.1
by Sysadmin＠dte.net 03 Feb '08

03 Feb '08

Hello out there! Been around the block trying to get DVD support for Totem, but I keep running into dead ends everywhere I go. Looking for CentOS 5.1-compatible xine and xine-lib packages as that seems to be the answer, but the only ones I find (like on DAG) seem to be just dead links or I get a message that the mirrors are unavailable when I try to run the rpm. Can anyone provide a link for rpm's that will provide DVD support on CentOS 5.1 32bit? I installed the Gstream rpm's so at least I have mp3 and mpeg support, I just really want DVD support as well. Many thanks in advance, Manuel Alvarez P.S. If anyone can chime in the question below I would greatly appreciate it. I still have no idea on this one. L From: Sysadmin(a)dte.net [mailto:Sysadmin@dte.net] Sent: Tuesday, January 22, 2008 5:14 PM To: 'centos(a)centos.org' Subject: Wireless PCMCIA/PC Card for CentOS 5.1? Hello everyone, I would really like to get wireless working on my CentOS 5.1 install. I have a LinkSys WPC54G (I guess version 1 since no version is listed) but everything I've read indicates that this would be a nightmare for a Linux newbie like myself. I got as far as NDISWrapper, but right off the bat I am getting issues with KBuild and I guess my kernel source so I can't even get as far as compiling NDISWrapper. My question is mainly: Can anyone recommend a PC Card for a laptop that will work on CentOS without NDISWrapper? If not, is there an idiot guide for installing NDISWrapper on Centos 5.1? Thanks and best wishes, Manuel Alvarez

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SSH listen audio from client
by Sergio Belkin 03 Feb '08

03 Feb '08

Can I open via SSH, say, Kaffeine o whattever video app and listen audio from client? Thanks in advance -- Sergio Belkin ----------------------------------------

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Re: [CentOS] DVD support on CentOS 5.1
by David G. Miller 03 Feb '08

03 Feb '08

On Feb 1, 2008 2:17 AM, Ross Cavanagh <ross-cavanagh(a)bm-sms.co.jp> wrote: > > > >> > > >> > > The package that you want to install from rpmforge is: >> > > >> > > gstreamer-ugly-plugins >> > > >> > > It should make gstreamer (and totem on centos5) be able to play dvds. >> > > >> > > I am not sure if it works, as I use mplayer on my personal workstation :D >> > > >> > > Thanks, >> > > Johnny Hughes >> > > Also, you may require libdvd, this is available from the rpmforge repo. > > > > -Ross- > > > That should be gstreamer-plugins-ugly. I usually only make such transpositions with numbers. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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Monitor power save question
by David G. Miller 03 Feb '08

03 Feb '08

I decided to try the x86_64 version of CentOS 5 on my new desktop since it has an Athlon 64 X2 CPU. The one really perplexing oddity is that the monitor no longer goes to power save mode (standby) if the system is idle long enough (e.g., overnight). The "power management" option is set to put the display to sleep after thirty minutes. The display gets blanked but it never goes to standby. The weird thing is that the display behaved as expected when I still had the 32 bit version of CentOS installed so the hardware supports powering down the monitor. I don't see anything incriminating in dmesg, /var/log/messages or /var/log/Xorg.0.log. I'll switch the system to boot to runlevel 3 so I can see if X is spewing something to the first alternate console that isn't getting written to the log file. Anyone have other any suggestions as to diagnosing of fixing the problem? Thanks, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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Networking issue (after latest 5.1 update?)
by Bart Schaefer 03 Feb '08

03 Feb '08

I'm not *entirely* sure but this began happening at about the time I installed the latest kernel updates for CentOS 5.1 (kernel-2.6.18-53.1.6.el5.i686.rpm from January 24). Shortly before that I changed the encryption on my wireless router and switched from ndiswrapper back to the standard bcm43xx driver, but I'm pretty sure the network was OK before that update for the simple reason that I was able to download the update itself. In any case, for the past week or so wireless network connectivity from my CentOS 5 laptop has been terrible. The wireless router is set up as my DNS server, and connectivity is as expected for wired-connected computers and wirelessly from my Mac, from the game consoles, from my work laptop (currently running ubuntu), and from the CentOS laptop when re-booted into Windows XP. So the problem is restricted to CentOS 5. It takes minutes to do DNS lookups, and to establish a connection in the first place takes so long that "stateless" stuff like web surfing ranges from impossible (timeout) to merely unbearable. The automatic software updater hasn't succeeded in connecting ("Details: None") since the 24th. However, SSH connections seem to work OK (if perhaps a little bursty) once I manage to get connected (often by ssh'ng to the destination by IP address rather than by name). I can ping computers on the wired LAN on the other side of the router: PING 192.168.0.100 (192.168.0.100) 56(84) bytes of data. 64 bytes from 192.168.0.100: icmp_seq=1 ttl=64 time=0.094 ms 64 bytes from 192.168.0.100: icmp_seq=2 ttl=64 time=0.084 ms 64 bytes from 192.168.0.100: icmp_seq=3 ttl=64 time=0.082 ms 64 bytes from 192.168.0.100: icmp_seq=4 ttl=64 time=0.084 ms 64 bytes from 192.168.0.100: icmp_seq=5 ttl=64 time=0.085 ms 64 bytes from 192.168.0.100: icmp_seq=6 ttl=64 time=0.088 ms 64 bytes from 192.168.0.100: icmp_seq=7 ttl=64 time=0.085 ms 64 bytes from 192.168.0.100: icmp_seq=8 ttl=64 time=0.085 ms 64 bytes from 192.168.0.100: icmp_seq=9 ttl=64 time=0.086 ms 64 bytes from 192.168.0.100: icmp_seq=10 ttl=64 time=0.087 ms 64 bytes from 192.168.0.100: icmp_seq=11 ttl=64 time=0.087 ms 64 bytes from 192.168.0.100: icmp_seq=12 ttl=64 time=0.085 ms --- 192.168.0.100 ping statistics --- 12 packets transmitted, 12 received, 0% packet loss, time 10997ms rtt min/avg/max/mdev = 0.082/0.086/0.094/0.003 ms But when I ping the router itself: PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. 64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=32.1 ms 64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=2.36 ms 64 bytes from 192.168.0.1: icmp_seq=5 ttl=64 time=1.89 ms 64 bytes from 192.168.0.1: icmp_seq=7 ttl=64 time=1.76 ms 64 bytes from 192.168.0.1: icmp_seq=8 ttl=64 time=1.80 ms 64 bytes from 192.168.0.1: icmp_seq=9 ttl=64 time=1.78 ms 64 bytes from 192.168.0.1: icmp_seq=10 ttl=64 time=1.84 ms 64 bytes from 192.168.0.1: icmp_seq=12 ttl=64 time=1.94 ms 64 bytes from 192.168.0.1: icmp_seq=12 ttl=64 time=3.58 ms (DUP!) 64 bytes from 192.168.0.1: icmp_seq=13 ttl=64 time=1.88 ms 64 bytes from 192.168.0.1: icmp_seq=14 ttl=64 time=1.99 ms 64 bytes from 192.168.0.1: icmp_seq=16 ttl=64 time=1.76 ms --- 192.168.0.1 ping statistics --- 17 packets transmitted, 11 received, +1 duplicates, 35% packet loss, time 15997ms rtt min/avg/max/mdev = 1.765/4.562/32.120/8.323 ms At one point I had 15 consecutive DUP packets during a ping run before things finally settled down. Any idea what could cause this, or how to diagnose it further? I've run "arping -D" and there is only one responder on 192.168.0.1.

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rsync question
by Jerry Geis 03 Feb '08

03 Feb '08

I have an external USB that I backup to. Rsync uses a bunch of memory in the process. So I thought I would build the file list and output that to a file then let rsync read the file names from a file list (hopefully not taking TONS of memory)... I do the command: rsync --only-write-batch=rsync_file_list -a /home ./rsync_file_list.sh . seems good and some files do copy. however I get a bunch of messages like: (No batched update for "home/jerry/signisam.nx") and then this file is not copied. Why is that and how can I get it to copy. This all works fine when I execute "rsync -a /home ." as I normally do. Thanks Jerry

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USB failure (was: Networking issue (after latest 5.1 update?))
by Bart Schaefer 02 Feb '08

02 Feb '08

On Feb 2, 2008 1:54 PM, Bart Schaefer <barton.schaefer(a)gmail.com> wrote: > Something else nasty is going on because for the last three reboots > the machine has only remained up for about 5 minutes at a time before > it becomes unable to execute any new programs and has to be > power-cycled to restart it. I got one console message about a failed > journal write before the second of those forced reboots. This appears to be happening because the root filesystem is on a USB drive and the system has lost track of the device, as if the cable had been unplugged (even though it was not). I was accidentally able to see this happen while booted from the 5.0 CD in rescue mode, although I can't determine steps to reproduce it. In any case it's probably unrelated to the networking question, and certainly unrelated to the new kernel.

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