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IP range
by Birta Levente 03 Aug '12

03 Aug '12

Hi all Can someone explain me this: ifcfg-eth0-range1: ONBOOT="yes" IPADDR_START="192.168.1.48" IPADDR_END="192.168.1.55" CLONENUM_START="1" Why Bcast is 192.168.1.51 and why Mask is 255.255.255.252 ? OS: Centos 6.3/64bit Thanks Levi # ifconfig eth0:1 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.48 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:2 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.49 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:3 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.50 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:4 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.51 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:5 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.52 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:6 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.53 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:7 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.54 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000 eth0:8 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00 inet addr:192.168.1.55 Bcast:192.168.1.51 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Memory:fbee0000-fbf00000

9 16

amanda backup
by Kaushal Shriyan 03 Aug '12

03 Aug '12

Hi, Is there a step by step guide to configure amanda server and client on CentOS and backup on hard drive? Regards Kaushal

5 4

Virtual appliance - initial setup
by Deyan Stoykov 03 Aug '12

03 Aug '12

Dear everyone, I'm creating a virtual appliance based on CentOS 6.3 that will be packaged as OVF. Is anyone aware of an existing solution for post-deployment configuration (hostname, network settings and root password as a minimum) other than editing config files by hand - I'd like the process to be more user friendly than that if possible. Ideally it should be hypervisor-independent. It seems that anaconda can only be used during initial setup. Thanks, Deyan -- Deyan Stoykov, dstoykov(a)uni-ruse.bg System administrator Computing and Information Services Center University of Ruse

2 1

Oracle tries to capture CentOS users
by Chris 03 Aug '12

03 Aug '12

Hello CentOS Guys :-) Oracle has created a new Website to capture CentOS Users :o http://linux.oracle.com/switch/centos/ -- Chris

24 62

Another NTP issue (fake leap second)
by Timo Schoeler 02 Aug '12

02 Aug '12

Hi list, just out of curiosity: Was anybody affected by this? http://lists.ntp.org/pipermail/questions/2012-August/033611.html Cheers, Timo

2 1

iptables rule question for Centos 5
by Blackburn, Marvin 02 Aug '12

02 Aug '12

I have a server that allows incoming traffic for ssh and some other things. I need to set up a rule that will drop/reject all traffic from a particular server except ssh. How can I do that. _____________________________________ "He's no failure. He's not dead yet." William Lloyd George

2 1

How to trigger automount of USB drives in Centos6
by Emmanuel Noobadmin 02 Aug '12

02 Aug '12

In brief: Is there is anyway to trigger the same automount mechanism, that X appears to use, on unmounted USB drives that are already connected? Background: I've got a C6 server with default desktop GUI installed for the sake of the onsite admin. There is a bash script I wrote that runs every night checking for specific folders on any drive and dumps data into it. To ensure fs integrity, I do an unmount in the script when it's done in case anybody simply yanks the drive out without doing the proper process. Now due to that, I would need to remount the drive when the script runs if it wasn't unplugged and replugged to trigger the automount. Problem is, it is not certain that the same drive will be used so I cannot simply hard code a line that just do a mount -t ntfs-3g /dev/sde1 /media/backup. I cannot assume it would always be say /dev/sde1 or /dev/sdf2 as that depends on how many drives are connected before that and how was that particular drive partitioned. The inbuilt auto mount mechanism also appears to use different mountpoints for different USB drives (based on drive label?) and so the best way for me is to force all USB drives to be remounted, and scan through the /media folder as that is where the automount mounts the partitions. I could try to mount all drives found in /proc/partitions but that seems very dangerous since the list includes md partitions and array members. So the question is whether there is anyway to trigger the same automount mechanism, that X appears to use, on any unmounted USB drives? Trying resources I found online, It doesn't seem to be autofs or gnome-mount mechanism as neither of these are installed on the server. Both automount and gnome-mount command not found.

3 3

[CentOS 6] - problem install skype
by Paolo De Michele 02 Aug '12

02 Aug '12

Hi all, I am having trouble with installing skype. I downloaded the 2.2 version via the official site, I installed by typing rpm-i but now quadno the launch the application does not start. do you know how to fix it? thanks in advance

3 3

kernel-debuginfo
by Tair Sabirgaliev 02 Aug '12

02 Aug '12

Hi! I'm trying systemtap on CentOS 6.2 kernel-2.6.32-220.23.1.el6.x86_64. My problem is that I can't find kernel-debuginfo... corresponding to my kernel version. The systemtap docs suggest rebuilding the kernel from sources, but it looks like I will have to install my own kernel, which is not acceptable on the production machine. Where can I find the debuginfo for the latest CentOS kernel? Thanks! -- Tair Sabirgaliev "BEE Software" Ltd. Republic of Kazakhstan, 010000 Astana, Kabanbay Batyr str. 6/5, office 1 Tel.: +7 (7172) 92-64-99 Mob.: +7 (702) 2173359 e-mail: tair.sabirgaliev(a)bee.kz

3 4

kmod-nvidia?
by m.roth＠5-cent.us 02 Aug '12

02 Aug '12

I just went to install kmod-nvidia on a 64-bit CentOS 6.2 system... and enabling elrepo, yum can't find it. There's a page for it, but that was last updated last year, and there are also references to packages for older Nvidia cards, but not the current. What do I not know? mark

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