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Three Identical systems - short cut to setting up the drives?
by Robert Moskowitz 06 Jul '08

06 Jul '08

I am building three identical systems. Well they will have different host names, and with time the software setups will drift. But at install time they are identical. Is there some way, (with dd I might guess) to do a hardare level copy? All three drives are Hitachi DK23DA-40F (40Gb). Supposedly factory reconditioned (they are in sealed bags with a drive sticker stating: "Refurbished to Hitachi Global Storage Technologies Specifications"). I would want to copy the paritition table and my 3 partitions (/boot, swap, LVM (/ and /home ext3 partitions in the LVM)) and all their contents. Thing is I only have one USB drive enclosure so I would be running from the drive I want to copy from. I would hope this is faster than 2 more installs.

11 32

Message size rejected
by Anne Wilson 06 Jul '08

06 Jul '08

My daughter needs to send me a large file. It appears that it is getting through my ISP, but being rejected on my CentOS mail server. The message she's getting says A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: anne@localhost SMTP error: 552 5.3.4 Message size exceeds fixed limit Reporting-MTA: dns; borg2.lydgate.lan I presume that this is a configurable limit, but I'm not sure where to look. Since it says MTA I'm thinking that it's probably postfix. Can someone please tell me what parameter I'm looking for? Thanks I have reams of documentation printed out. I'll start wading through that tomorrow, but time is of the essence with this one. Anne

11 27

nspluginwrapper failure on x86_64 in 5.2
by Mark Hull-Richter 06 Jul '08

06 Jul '08

This was working in 5.1 - I am now getting errors when I try to run a flash video in seamonkey under CetnOS 5.2. Here is the error: For application/x-shockwave-flash found plugin /usr/lib64/mozilla/plugins/npwrapper.libflashplayer.so sh: /usr/lib/nspluginwrapper/i386/linux/npviewer: No such file or directory Here is what I have installed: $rpm -qa | grep -i nsplugin nspluginwrapper-0.9.91.5-21.el5.i386 nspluginwrapper-0.9.91.5-21.el5.x86_64 These are now part of the base, but there seems to be a problem with finding the right plugin to execute: $ locate nspluginwrapper /etc/sysconfig/nspluginwrapper /usr/lib/nspluginwrapper /usr/lib/nspluginwrapper/npconfig /usr/lib/nspluginwrapper/npviewer /usr/lib/nspluginwrapper/npviewer.bin /usr/lib/nspluginwrapper/npwrapper.so /usr/lib/nspluginwrapper/plugin-config /usr/lib64/nspluginwrapper /usr/lib64/nspluginwrapper/npconfig /usr/lib64/nspluginwrapper/npviewer /usr/lib64/nspluginwrapper/npviewer.bin /usr/lib64/nspluginwrapper/npwrapper.so /usr/lib64/nspluginwrapper/plugin-config /usr/share/doc/nspluginwrapper-0.9.91.5 /usr/share/doc/nspluginwrapper-0.9.91.5/COPYING /usr/share/doc/nspluginwrapper-0.9.91.5/NEWS /usr/share/doc/nspluginwrapper-0.9.91.5/README /var/cache/yum/base/packages/nspluginwrapper-0.9.91.5-21.el5.i386.rpm /var/cache/yum/base/packages/nspluginwrapper-0.9.91.5-21.el5.x86_64.rpm Just for good measure: $ ls -R /usr/lib/nspluginwrapper /usr/lib/nspluginwrapper: npconfig* npviewer* npviewer.bin* npwrapper.so* plugin-config* What happened (or, what do I do next)? This seems to be broken in 5.2. Thanks. mhr

4 4

i386 version of Perl getting installed on x64 system?
by Joseph L. Casale 06 Jul '08

06 Jul '08

I am trying to install: perl-Compress-Zlib perl-Digest-Perl-MD5 perl-Net-DNS perl-Time-HiRes perl-Email-Valid perl-File-ReadBackwards perl-File-Scan-ClamAV perl-Mail-SPF-Query perl-libwww-perl perl-LDAP perl-Unix-Syslog perl-Mail-SRS perl-Net-CIDR-Lite perl-Mail-SPF which are all either noarch or x86_64 rpms yet it wants to install perl i386 version? I could ask on rf list but it wont let me subscribe so that's of no help:/ Is there an obvious reason for this, or another bizarre erroneous dependency issue? Thanks! jlc

6 12

PPPoE and IPv6
by Robert Moskowitz 06 Jul '08

06 Jul '08

I am not getting my IPv6 address and prefix delegation for my ppp interface on my new gateway. ppp is working right. It is getting authenticated and getting the its IPv4 address. Shorewall is doing the forwarding and the static routes on the internal interface for IPv4 are working. But no IPv6. Here is my ifcfg-ppp0: USERCTL=no BOOTPROTO=dialup NAME=DSLppp0 DEVICE=ppp0 TYPE=xDSL ONBOOT=no PIDFILE=/var/run/pppoe-adsl.pid FIREWALL=NONE PING=. PPPOE_TIMEOUT=80 LCP_FAILURE=3 LCP_INTERVAL=20 CLAMPMSS=1412 CONNECT_POLL=6 CONNECT_TIMEOUT=60 DEFROUTE=yes SYNCHRONOUS=no ETH=eth0 PROVIDER=DSLppp0 USER='me' PEERDNS=no DEMAND=no PERSIST=no IPV6INIT=yes Interesting also about the FIREWALL entry. I do have iptables off, as I am using shorewall that uses netfilter. I will be using ip6tables once I get things going. Of course once I get IPv6 to this box, I then have to have IPv6_forwarding working....

1 0

configuration file for tunneling device
by Nabin Limbu 06 Jul '08

06 Jul '08

Hi, For Ethernet and others, we have a configuration file inside /etc/sysconfig/newtork-script/ like ifcfg-ethx where we specify ip address, mask, type etc... For GRE tunneling, how can I specify the parameters for tunneling device, so that I ifup-tunnel will automatically read and start the interface and I don't have to write the below scripts in my start-up file. ip tunnel add netx mode gre remote 69.77.7.7 local 192.168.0.1 ttl 255 ip addr add 192.168.0.1 dev netx

2 1

RHEL vs. CentOS
by drew einhorn 06 Jul '08

06 Jul '08

Hi, we have a new customer to support. They have RHEL5 not CentOS5. Is there a summary of the differences between RHEL and CentOS? We have come across differences in how yum works. There is magic involving the rhnplugin that connects us to invisible repositories not mentioned in the yum config files, interacts with the web interface via rhn.redhat.com, ... We wonder if there are other differences that we have not yet stumbled upon, that might create issues in the future. -- Drew Einhorn

4 6

how to generate modprobe.conf
by David Hláčik 06 Jul '08

06 Jul '08

Hello, i have moved hard disk from one pc to another (some architecture). I have booted, everything working. To my surprise some modules in modprobes.conf are still there even if this PC does not have such hardware. I have tried remove modprobe.conf, but after reboot, system by it self does not generate a new one modprobe.conf. What is responsible for modprobe.conf generation, how can i revoke it to generate a modprobe.conf such as is generated after fresh install. Thanks in advance! David

2 1

Can't run a bash script from USB drive
by MHR 06 Jul '08

06 Jul '08

I just tried to run a bash script (called "whose") from my USB drive and I get this: bash: /mt/bin/whose: /bin/bash: bad interpreter: Permission denied I did some googling and found that this is because my USB drive is mounted with noexec permission. When I was running FC8, this was not the case. How can I control this (i.e., allow 'exec' on my USB drive(s))? Thanks mhr

5 10

mkdep vs. makedepend
by MHR 05 Jul '08

05 Jul '08

Where I work, we have an application that has been merrily running away (and being built) on FC1 (yes, you read that right). One of my assignments is to bring this up to CentOS, but on my first effort, I ran into this interesting "feature." The original build process (FC1) uses mkdep to generate the dependency files that are subsequently used by the makes to build the app. mkdep does not exist in CentOS 5.2. There is a makedepend command that operates slightly differently. Can someone enlighten me on this, particularly w.r.t. 1) how do I use makedepend to generate the same files mkdep did and is this a good idea (my impression is that it's not really that hard but also not necessarily a good idea or 2) convert all the makefiles to be makedepend friendly (seems relatively easy, though fairly extensive, but probably a better idea and also harmless should I wish/need to continue to build on the FC1 system? Probably a really basic question or two, but neither google nor the archives have a good article on this that I could find. Thanks. mhr

5 5

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