Discuss

discuss@lists.centos.org

5 participants
34752 discussions

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

5 5

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

3 2

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

1 0

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

7 8

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

4 3

JAVA Issue - JDK 1.4 - Cent OS 4.2
by Tom Brown 04 Jan '06

04 Jan '06

Hi Trying to run up a JVM on a box thats running 4.2 - The JDK version is j2sdk1.4.2_03 and the exact error is below Unable to load native library: /opt/j2sdk1.4.0/jre/lib/i386/libjava.so: symbol __libc_waitpid, version GLIBC_2.0 not defined in file libc.so.6 with link time reference any ideas thanks

2 2

OT: [CentOS] Linux boot floppy to install over net
by Bassett, Mark 04 Jan '06

04 Jan '06

>Robert Moskowitz <rgm(a)htt-consult.com> wrote: >And the sole purpose of this system is to be a wireless sniffer/attacker. Have you looked into livecd distributions? I find that those work rather well for that type of use. PHLAK / Knoppix STD / Helix ?? You can always perform a HD install on any of them.

1 0

Jigdo, etc...
by Maciej Żenczykowski 04 Jan '06

04 Jan '06

Hi folks, I've just finished rsyncing/downloading/jigdoizing the entire i386/x86_64 CentOS 4.2 distribution. If anyone is interested go to http://mirror.tcs.ii.uj.edu.pl/jigdo/ You'll need to edit the .jigdo file by hand to change the server section [Servers] CentOS42=file:/opt/mirrors/centos/4.2/ to point to a local mirror (file, http or ftp), ie. to use kernel.org: [Servers] CentOS42=http://mirrors.kernel.org/centos/4.2/ While doing this I have come upon a few questions: a) it seems the server cd's have a lot of stuff not present in the normal directory mirror, I guess this is an artifact of the build process? [the template files for the servercd's are ~120MB] b) what are the .newheaders and .repodata directories on i386 CD1? c) why do the mirror repodata/*.xml.gz files not match neither the CD nor DVD versions for i386? d) why does the i386 DVD not match ideally, but the x86_64 DVD matches for _all_ files. The x86_64 CD1 also matches _much_ better than the i386 CD1... e) why aren't identical files between the two trees hardlinked? $ ls -ali os/*/CentOS/RPMS/yum*noarch* 278532 -rw-rw-r-- 1 maze maze 395922 Sep 4 19:48 i386/CentOS/RPMS/yum-2.4.0-1.centos4.noarch.rpm 1165388 -rw-rw-r-- 1 maze maze 395922 Oct 10 22:20 x86_64/CentOS/RPMS/yum-2.4.0-1.centos4.noarch.rpm $ md5sum os/*/CentOS/RPMS/yum*noarch* 371d55a19f8e4ca13d22974128ab4671 i386/CentOS/RPMS/yum-2.4.0-1.centos4.noarch.rpm 371d55a19f8e4ca13d22974128ab4671 x86_64/CentOS/RPMS/yum-2.4.0-1.centos4.noarch.rpm Just an example of two identical files from my mirror, one of which is wasting space even though contents are identical. I expect we have this situation for almost _all_ i386 packages from the x86_64 distribution... $ pwd /opt/mirrors/centos/4.2/os/x86_64 $ find|grep "i386\.rpm"|while read i;do diff -qr "$i" "../i386/$i";done $ find|grep "i386\.rpm"|while read i;do cat "$i";done|wc -c 440745010 $ find|grep "noarch\.rpm"|while read i;do diff -qr "$i" "../i386/$i";done $ find|grep "noarch\.rpm"|while read i;do cat "$i";done|wc -c 426816227 $ pwd /opt/mirrors/centos/4.2/updates/x86_64 $ find|grep "i386\.rpm"|while read i;do diff -qr "$i" "../i386/$i";done $ find|grep "i386\.rpm"|while read i;do cat "$i";done|wc -c 12819616 $ find|grep "noarch\.rpm"|while read i;do diff -qr "$i" "../i386/$i";done diff: ../i386/./RPMS/createrepo-0.4.3-1.noarch.rpm: No such file or directory $ find|grep "noarch\.rpm"|while read i;do cat "$i";done|wc -c 2164495 $ ls RPMS/createrepo-0.4.3-1.noarch.rpm -al -rw-rw-r-- 2 maze maze 18284 Sep 5 13:59 RPMS/createrepo-0.4.3-1.noarch.rpm That seems to me to be a 880 MB mirror space savings to be made there... Considering the i386/x86_64 mirror takes up 7.7GB (without iso's) that's quite a bit... I also imagine the noarch files are shared with most of the other architectures... so I'd assume another 400MB per every next arch can be saved... f) Why aren't jigdo files available on the site? They'd really come in useful, especially in the situation I had where I already had a complete mirror of all the files, but I still had to bittorrent the CD/DVD's even though I had 99% of the required data on disk! Cheers, MaZe.

2 3

megaide support for 4.2
by Kris Buytaert 04 Jan '06

04 Jan '06

In 2.4 there used to be a megaide driver for certain ata raid controllers. In 2.6 I can't access more than my /dev/hda , I can see my other 4, I can create filesystems on them, but I can't mount them Anyone knows how to use these on a 2.6 kernel (Centos 4.2) greetings Kris 00:02.0 RAID bus controller: Silicon Image, Inc. SiI 0649 Ultra ATA/100 PCI to ATA Host Controller (rev 02) Subsystem: Compaq Computer Corporation Integrated Ultra ATA-100 IDE RAID Controller Flags: bus master, medium devsel, latency 64, IRQ 5 I/O ports at 2010 [size=8] I/O ports at 2018 [size=4] I/O ports at 2020 [size=8] I/O ports at 2028 [size=4] I/O ports at 2030 [size=16] Capabilities: [60] Power Management version 2 -- Kris Buytaert <mlkb(a)x-tend.be>

7 15

How to upgrade hard drive in a single drive (with LVM2) computer
by Barry L. Kline 04 Jan '06

04 Jan '06

This one has me stumped and I'm sure I must be missing something trivial. What is is eludes me. I have a 20G drive that will be replaced with a 160G drive. The /boot partition is just a standard type 83, and the swap is an 82. The system root partition is in a LV, as is the /home partition. I've upgraded hard drives dozens of times without incident, but never ona system with LVM. I did this (booted into single-user mode): 1) Create the appropriate partitions on the new drive 2) Created an EXT3 partition and copies over /boot, ran GRUB to make it bootable. 3) did the mkswap on the second partition. 4) did a pvcreate on the third partition on the new drive, then created th VG (vg1) and LV for the two paritions. 5) Mounted the new partitions under /mnt, then used tar to copy the files from the old to the new (excluding tmp mnt sys & proc) 6) Edited grub.conf (on the new drive) to point to VG1 instead of VG0 for sysroot. Edited /mnt/etc/fstab to point to the new locations (I changed the names of the logical volumes slightly.) 6) Disconnected the old drive, then booted. The system booted, but got only as far as 'Red Hat nash' ... then complained that it couldn't find vg0. (the volume group on the other disk). I can't get into single-user mode when booting this single drive. I'm trying to do this whole thing non-destructively so that the original drive is a backup, until we confirm that the new drive is behaving well. Are these steps correct (and they should be without LVM) or is there something much easier and obvious that I'm missing? I could, I suppose, add the new parition into the original volume group, and do the 'pvmove' dance to get things over (as explained briefly in the LVM-HOWTO on Red Hat's site) but it wouldn't leave a bootable system on the original drive. Any suggestions would be greatly appreciated! TIA, Barry

2 8

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss