CentOS 5 Networking :: Is There Any Additional Configuration In Order To Make Network Stable

Jul 8, 2010

I have a webserver to host some system application to the public. the server have two network interface. I set eth0 with wan IP and eth1 with internal LAN IP.the reason for the internal ip on eth1 is to enable LAN pc directly access to the webserver application..is this configuration is ok. sometimes the server link down and i have to restart network to get it back to normal again.. Is there any additional configuration in order to make the network stable.

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Dec 27, 2010

how can i make 1000fps stable kernel

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Mar 24, 2011

Similar to the linux command "chattr +i filename", I would sure like to set my eth0 interface immutable. so once I assign the eth0 interface's IP and gateway, make it stay set until I say otherwise.

this way, I can run dhclient or Networkmanager on another interface without having to fret that it may alter this interface. is there something out there that can do this?

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General :: CentOs 5.3 - Grub Configuration For Boot Order

Feb 11, 2010

I clone an drive with CentOs 5.3 from a drive connected to ATA0 device 0 of an ATA controller to an identical drive connected to the same ATA contoller ATA1 device 0. No matter what I do it boots from ATA1 device 0 and I need to be able to control which one it is booted from. When I have puppy linux on one drive and CentOs on the other drive I can control the boot thru the system BIOS either way no matter if puppy is in ATA 0 or 1. So its not a BIOS issue. It appears (to me) to be a grub configuration issue. Since the 2 drives are clones they both have VolGroup00. I think grub loads from the last VolGroup00 found.

Here is my grub.conf file:
# grub.conf generated by anaconda
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
# initrd /initrd-version.img
# boot=/dev/hde
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-128.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/VolGroup00/LogVol00
initrd /initrd-2.6.18-128.el5.img

Here is the Device.map:
# this device map was generated by anaconda
(hd0) /dev/hde

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Apr 16, 2010

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I opened the /etc/hosts file, tinkered with it, but something inevitably got screwed up. I can still use the Internet, but it won't let me install OSCAR. Running a system-sanity check returns:

Code:
[root@SurgeonfishR ~]# system-sanity
Checking your system...
Success: ssh-check.pl
Success: tftpboot-check.pl
Success: selinux-check.pl

[Code]...

All I need to know is what the /etc/hosts file should look like for a CentOS 5.4 installation with 1 NIC that is not connected to a domain (only a LAN). It is connected to a router which in turn is connected to my home network (I don't know what to do about that). The hostname should be surgeonfishr and the IP address should be 192.168.0.150.

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Jan 14, 2010

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We are in the process for Integration Network with our Government Network.
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Feb 5, 2010

i installed the free PacketIX vpn client on my ubuntu 9.04. it created a virtual network adapter, i was able to configure and connect to the VPN service but when i add a default route to the routing table so that all internet traffic goes through the VPN, my internet connection stops working until i remove the line i added.
here's my routing table before :

Code:
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.222.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
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[Code].....

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Aug 23, 2010

I have a sh-tty B/G wireless card that does 500mw according to iwconfig. I also have a nice little panel antenna on this card that does 7dBi. This rig picks up a lot of signals and that is really great. However I am experiencing a problem. I am able to Internet browse on non-encrypted networks as long as the wireless manager shows a full four bars. However, if I try to connect to a three bar network, I will not be able to browse the Internet. I have a solid lower level 3 bars, I'm assigned an IP addy, but I get absolutely no throughput.

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Feb 17, 2009

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Dec 11, 2009

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It seems that my network manager may be running in root mode...

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How can i set it that the normal user can make changes? [managed is set to true in the conf file]

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is there any way to make a 2(n) digit number with additional zero(s) like "%02d" in C ?

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May 18, 2011

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Feb 10, 2010

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contains
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May 19, 2011

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May 25, 2010

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Jan 4, 2010

Which is bit tricky (I learn slowly linux unfortunately due to low skills in informatics)

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Dec 17, 2009

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I update Jessie "stable" 8.2 to 8.4 and now I get 5 minute interval kernel messages:

Apr 18 06:39:52 OraHost kernel: [131985.494726] sdc: unknown partition table
Apr 18 06:45:03 OraHost kernel: [132295.755942] sdc: unknown partition table
Apr 18 06:50:03 OraHost kernel: [132595.946564] sdc: unknown partition table
Apr 18 06:55:13 OraHost kernel: [132906.139327] sdc: unknown partition table
Apr 18 07:00:23 OraHost kernel: [133216.340555] sdc: unknown partition table

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And also something appears to have happened to the raid device since the update.

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Sep 11, 2009

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Mar 30, 2010

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