Networking :: Ipv6 Stack Not Enabled On Centos 5.6
Jul 25, 2011
I've got a little server setup on my local network and I'm trying to configure it to use miredo. I've got my laptop successfully using it, but for some reason miredo gives this error when I try to start it:
Code:
Error: IPv6 stack not available.
also running "lsmod | grep ipv6" gives these results
Code:
ipv6 270049 1 cnic
xfrm_nalgo 13381 1 ipv6
I get the impression that ipv6 is not enabled on my server, but I'm not sure how I enable it short of doing a reinstall.
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Mar 12, 2010
How do you I use duel stack i.e How do I use ipv6 packet inside ipv4 packet using fedora kernel 12 ?
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Feb 5, 2011
I've installed live usb-hdd using live-helper on my Lenny.
How to check if on this usb live IPv6 is enabled or disabled?
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Jul 22, 2009
I used to play with gw6c ( a client for tunnel broker ) It works well with fedora9 , fedora 10, but not with leonidas. my rpm is gw6c-6.0-0.4.beta4.fc9.i386.rpm ( a little old!) when I tried to install i have got this: libcrypto.so.7 est ncessaire pou w6c-6.0-0.4.beta4.fc9.i386 I try to make a soft link to libcrypto.so.0.9.8k, but nothing; The question :-Is there a solution for that pb - did you know a better client for non native ipv6 connectivity?
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Aug 31, 2011
I have been struggling to get FC15 to act as an IPv6 router for a while now, am sure I am missing something trivial.. The idea is that I have a ppp / adsl connection (this works fine), use the wireless card on my pc with hostapd and dhcpd to provide connections to other pcs (works fine), and radvd to delegate ipv6 addresses.
The issue seem to be that as soon as I turn on ipv6 forwarding (net.ipv6.conf.all.forwarding =1), the ppp connection no longer gets an IPv6 address. This means the router cannot ping any ipv6 address outside my network.
If I disable ipv6 routing, my router gets an IPv6 address on its ppp connection, and can ping things such as ipv6.google.com just fine, however (of course) no packets are forwarded from my network and radvd complains that forwarding is disabled.
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Jul 28, 2011
I have configured IPv6 in my main server and I can ping IPv6 address (eg. google). but I want to do the same on my VPS.What do I have to do to add an additional IPv6 IP to my already present VPS (IPv4 configured)?I tried the web, but no complete info of doing so anywhere.
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Mar 1, 2011
I have a he.net ipv6 tunnel account and a manage to pass all the test to sage mode, but with debian 6.
I would like to have a step-by-step setup of centos 5.5 with iRedMail 0.7, but for only ipv6.
IP6TABLES
iRedMail with LDAP
DHCP for ipv6 (optional, just wanted to see the config)
Can't seem to add jpg files.
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Apr 10, 2011
Now that IPv6 is becoming more and more common, I found the need to disable IPv6 on some interfaces but have it enabled on other. I found that /proc/sys/net/ipv6/conf/*/disable_ipv6 does exactly that. I am now wondering if anybody knows, why are networking scripts so counterintuitive. /etc/sysconfig/network has an option:
NETWORKING_IPV6=yes
All this option does is disable some ipv6 services (dhcpv6...), it does not disable IPv6 in whole (as one would assume...that's why you had to disable it with module parameters). Searching for more IP6 related config option, one can find that /etc/sysconfig/network-scripts/ifcfg-* scripts can contain:
IPV6INIT=yes
Again, this option does not disable IPv6 protocol on the interface, it just skips running ifup-ipv6/ifdown-ipv6 scripts. I added a /sbin/ifup-pre-local. Now, this script runs before ethX entries are created (other scripts run when it's already too late) in /proc directory, so it modifies default values which are then used after those entries are created:
#!/bin/bash
#
[ -f "/etc/sysconfig/network-scripts/$1" ] && . /etc/sysconfig/network-scripts/$1
[code]...
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Oct 20, 2009
I have Centos 5.3 installed on my pc. I have mysql, PHP and apache server running on my computer too.Is there any way I can test my website on my pc without running any stack ( lampp )?
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Jun 24, 2009
I try to set up a 5 nodes cluster and a shared Coraid Storage with conga but it fails with "Shared Storage Support" checked.The message is:'A problem occurred when installing packages: Packages of set "Clustered Storage" are not present in available repository' and it is shown under every node on the next sceen after I submit.The pc where conga runs is on the same subnet (192.168.xxx.xxx) and it has the same /etc/hosts of the other nodes.In that pc runs a proxy too and the nodes go out through it (that pc has 2 NICs)Every node (2.6.18-128.1.14.el5-xen-x86_64) is patched whith the last yum update (this morning) the same is for the pc (2.6.18-128.1.14.el5).Every node has 4 NICs , 2 NICc towards the storage the others in bonding towards the WAN.Every node is exactly alike, they have been installed with the ks.cfg generated from the first node and they all have the support for Clustering, Virtualization, and Clustered Storage.
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Dec 21, 2010
I just encountered an odd network stack glitch and wondered if anyone has seen this before, or knows what could cause it. When I connect to services on localhost (127.0.0.1) if there is a process listening, it works OK as expected. there is no process listening, I should get a NAK and see a connection refused message.With this glitch, that was not happening. And this was with 127.0.0.1 to 127.0.0.1. Nothing was listening, but the SYN attempts were all that were happening. If there was something listening that worked OK. Connections to other hosts worked as expected.
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Aug 3, 2009
I'm trying to set up a Linux box with three ethernet interfaces as a bridge where I can do some packet filtering. I don't want this box to have any IP stack, packets that are allowed through the filter should be forwarded without changes just the way a switch would do it. I have build a kernel with ethernet support but no IP stack. It detects my interfaces, and I can bring them up with the ifconfig or ip commands. But when I try to start a bridge with brctl I get this error message:
can't setup bridge control: Address family not supported by protocol
A google search for that error message gave me no results at all. The command I used was "brctl addbr br", which does work on a full installation. Does brctl require IP support in the kernel? That would be a bit odd I think, since brctl doesn't do anything IP related, everything it does is at lower layers?
Does anybody know what the above message means, and what I might have been doing wrong?
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Feb 14, 2011
I mistakenly ran 'iptables restart' on a server that was not set to run iptables. Immediately, the server quit making outgoing connections on port 80. It has problems completing a traceroute when another machine on the same VM Host can do everything just fine. One of our best networking technicians diagnosed it as issues with the TCP/IP stack on the OS.
I know that iptables is off, allowing all trafffic incoming/outgoing.
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Jul 26, 2011
Is there a linux command (or command combination or utility) that can identify all processes (PIDs) that are sharing a TCP/IP stack ?
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Apr 4, 2011
how to disable rSIM in the current bluetooth stack?Starting about a week ago, whenever my phone (Android Captivate) pairs with my ubuntu workstation the rSIM profile is enabled which effectively turns off my cell service since my Ubuntu machine does not have a GSM/3G radio built in.I'd like to disable rSIM altogether so that I can again re-pair my phone to my Linux system. All my searching turn up results for people trying FIX this service...
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Dec 31, 2010
I have installed bind with yum install bind bind-chroot.I am having query timeouts due to no ipv6 connectivity.Is there a way to re-compile and not loose the chroot structure?Or is there another way to disable ipv6 lookups?Example of issue resulting in ipv4 query timeout:
30-Dec-2010 17:52:03.226 client x.x.x.x#53593: view internal: query: paypal.com.cms.local IN A +
30-Dec-2010 17:52:03.227 client x.x.x.x#53594: view internal: query: paypal.com.cms.local IN AAAA +
30-Dec-2010 17:52:03.228 client x.x.x.x#53595: view internal: query: paypal.com IN A +
[code]....
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Jun 19, 2010
I've troubles getting my new Sweex wireless 300N USB adapter to work. Tried searching in several directions (see closed thread). Further investigations shows however it is caused by the NDISGTK wrapper for Windows drivers. Can anyone tell me whether Sweex is shipping a faulty driver (it is the latest available) or it is a fault in ndisgtk? Or maybe I'm doing something stupid myself, which I do not find completely imagenary below some more detailed information on my findings: Started with network off and examined the networkstatus
Quote:
tpeelen@CC-desktop:~$ sudo lshw -C network
*-network DISABLED
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
[code]....
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Sep 9, 2010
if an admin decides this is security feel free to move, at the moment I can't decide where so posted here...On my laptop (msi-u100) my bluetooth stack creates rfcomm0 but is not applying the correct context label to it so selinux is bitching.
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Aug 26, 2009
I have a centos server (5.3). I installed WebMin to assist with some of the administration details. In any event, I got it installed but I cannot access it (it requires a secure connection).
I checked out the server and it does not respond to a HTTPS:// request. When I telnet into port 80, it responds but it does not respond on port 443. MOD_SSL is installed and there is an ssl.conf (unmodified).
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Jul 20, 2010
since I upgraded to firefox 3.6 the program doesn't start up if I have any add-ons enabled.
The program starts fine with add-ons installed, but only starts up once as soon as any off them are enabled. Even normal add-ons like xmarks and adblock give problems.
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Oct 23, 2009
The nagios admin interface apparently needs php (although, of course, the howto mentions nothing of the sort). So then, I copied the php.conf that had at some time been installed on the system, and then moved by me out of /etc/httpd/conf.d, back into conf.d. It's a fairly simple one:
#
# PHP is an HTML-embedded scripting language which attempts to make it
# easy for developers to write dynamically generated webpages.
#
LoadModule php5_module modules/libphp5.so
[Code]....
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May 7, 2011
I'm trying to compile mplayer from srpm with vdpau enabled.
By default its disabled ( at least in rpmforge's srpm). How can i do this ?
This is what i tried:
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May 13, 2011
We are running CentOS 5.3 on a Logic Supply PT109, a ruggedized PC. For some reason the serial ports don't work when the IRQ is configured (i.e. setting IRQ to 0 makes it work, but performance suffers with the polling).
I've used minicom, picocom, and plain old cat and echo talk to the port both with a loopback connector and to another PC. statserial shows the control lines changing as I change the various settings and connect the loopback connector. I am confident that the hardware is fine as DOS diagnostics show the COMx ports working with various baud rates. I have tried changing the IRQ from the default of 11 to 3 and 4, turning flow control on/off, and tried another PT109.
strace shows data being written, but none being received, so my theories are either the interrupts aren't being generated (doubtful since the ports tested okay with DOS) or the serial driver isn't handling the interrupt. The serial handler shows up in /proc/interrupts when the port is opened. The interrupt counts do go up slowly, but not in response to activity that I can correlate:
[Code]...
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Nov 29, 2010
I have Ubuntu 10.10 installed on my laptop. My ISP natively supports ipv6, but since last weekend, I do not get an ipv6 ip. When I use a live cd however, I do get an ipv6 ip. For as far as I can see, all settings (/etc/network/interface and the settings in network manager) are exactly the same.
Output of ifconfig:
Code:
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:XXX.XXX.XXX.XXX Bcast:XXX.XXX.XXX.XXX Mask:XXX.XXX.XXX.XXX
inet6 addr: XXXX::XXXX:XXXX:XXXX:XXXX/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code].....
EDIT: is there a way to let the netwerk be automatically configured as happens during installation? It would be nice to start with a clean and new set of network config files as there were just after I installed Ubuntu on my system, without a full reinstall of my system.
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Jun 30, 2009
I have a problem with my ipv6 connection: although I can't get ipv6 address with DHCP, I can't use ipv6 network. I tried [URL], and the tortoise is static. I want to fix it out , so I use 'ifconfig' to see my network configuration:
eth0 Link encap:Ethernet HWaddr 00:50:8d:ef:dd:06
inet addr:210.77.9.102 Bcast:210.77.11.255 Mask:255.255.252.0
inet6 addr: 2002:d24d:b64:4:250:8dff:feef:dd06/64 Scope:Global
[code]....
Some people told me that the fisrt ipv6 address was wrong and unsuitable for ipv6 connecting. I tried /ect/init.d/networking restart but it didn't work. How can I use the second address as my ipv6 address and fix the problem out ? Now it seems there is not problem with the ip adress but the route. After watching some video, I suddenly could use ipv6. I did 'ifconfig' again and nothing was different. However, the result from the command 'ip -f inet6 route' changed: the last default route was gone and there was only one default route.
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Jan 12, 2010
I have installed Bind 9.6.1 on my linux pc. I have to resolve domain name using IPv6 address. I have made following entry in the /etc/resolv.conf file code...
address of the machine on which Bind is running. The problem is that I am not able to ping open-ims.test domain name. If I use IPv4, everything works fine but how to ping domain using IPv6.
I have also made changes in dnszone file by replacing IPv4 address with IPv6 address and also changing A to AAAA.
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Oct 18, 2010
I have installed CentOS and Redhat5 on a LVM partition and selinux is enabled. Both OS's share the same /home partition with one user with the same login(gc) and same uid (1000). The problem I am having is that gc can login with all permissions etc on the OS that was installed first (CentOS). For the redhat OS gc can login but cannot write to the home directory (or startx since X needs to write to Xauthority)Here are outputs - 1st CentOS
[gc@shuttle ~]$ ll -Zd $HOME
drwx------ gc gc system_ubject_r:unlabeled_t /home/gc
[gc@shuttle ~]$ stat $HOME
[code]....
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Oct 27, 2009
I have a Biostar TA785GE which as I understand it, has a Realtek 8111DL on-board.
Booting with the default label from the 64-bit installation DVD crashes before any user input, with indecipherable text on-screen (text mode, not X11). Symptoms were the same with the Fedora 11 32-bit installation DVD and the Fedora 12 Live 32-bit CD. Booting with "linux text" mode shows a kernel panic in ":r8169:rtl8169_init_one+0x369/0x9d4" from "pci_device_probe+0x100/0x180".
Disabling the on-board NIC allowed the boot to proceed, and get as far as detecting the hard drive partitions (where I stopped it since Ubuntu is installed).
Ubuntu 9.04 Workstation(Desktop?) install DVD worked fine, and I've installed it and am using it to enter this. From Ubuntu 9.04 on this hardware:
- "uname -r" shows
Linux snoopy 2.6.28-16-generic #55-Ubuntu SMP Tue Oct 20 19:48:32 UTC 2009 x86_64 GNU/Linux
- "lsmod | egrep '816|811'" shows:
[Code].....
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Nov 21, 2010
I want to add repository using ipv6. So, I add a xxx.repo file in /etc/yum.repos.d/. Just like it:
[sjtu6]
name=Fedora $releasever - $basearch - ftp6.xxx.xxx.xxx
baseurl=ftp://ftp6.xxx.xxx.xxx/fedora/releases/$releasever/Everything/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
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Nov 4, 2010
I have a networking problem with my computer. Under Windows, the computer can get both v4 and v6 address via DHCP. However, the same computer can only get v4 address under Ubuntu. Does anybody know how to solve this problem?
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