I was searching for a doc on the exact steps to setup a bridge for use by my KVM setup. I needed my VMs to be bridge onto the eth0 network. Some docs I found on google seemed to be outdated.
[URL]
I set up a bridge device but I can not figure out how to pass parameters into the ifcfg-vmbr0 in particular I need to pass:
maxage
ageing
fd and stp seems to be passed by DELAY=0 and STP=on the others? I have not found anything in the post, tips, docs how could I do?
I did a fresh installation of centos 5.5. I installed KVM. And configured a eth1 for KVM host network and i configured eth0 to be bridged.
When i do service libvirtd reload i get: internal error Bridge generation exceeded max id 256
any one are implementing Transparent Cache in bridge mode. after googling i found article but its not working for me. any one have done this before ? [URL]
View 4 Replies View RelatedI've been reading for days now, but can't find an example to the following. I have an ubuntu server, with two KVM virtual machines running ubuntu jeos. I want each VM to have it's own static IP, plus one IP for the server. How on earth I do that? do I need to create two bridges, one for each machine? and if so, how do I assign static IP to each?
View 2 Replies View RelatedI have two ethernet NIC's on my debian server. One built-in Realtek [eth0] (attached to internet), and a PCI Nvidia ethernet card [eth1] (attached to my Win7 netbook). I used this guide to setup the bridge: url. It worked when I was behind a router. But when I moved the computer in front of the router, to direct connect to the internet, the internet stopped functioning on any device that I plug into my Nvidia NIC. The name of my bridge is 'br0'. Does anyone know how to fix it, so I can route the internet to my second NIC?
My Win7 netbook displays this at an 'ipconfig' command:
Windows IP Configuration
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix:
Link-local IPv6 Address.....: fe80::143e:4cab:f802:8611%12
Autoconfiguration IPv4 Address..: 169.254.134.17
Subnet Mask.......:255.255.0.0
Default Gateway......:
My Debian interfaces file:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo br0
iface lo inet loopback
# Set up interfaces manually, avoiding conflicts with, e.g., network manager
iface eth0 inet manual
iface eth1 inet manual
# Bridge setup
iface br0 inet dhcp
bridge_ports eth0 eth1
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?
I have spent the last 24 hours trying to work a wireless bridge (a D-Link DAP-1522) into my network configuration. It would connect to our gateway here at home (some 2WIRE piece of garbage AT&T hands out, but I digress), and two computers (an Ubuntu Desktop and an Ubuntu Server) would connect via the bridge.
The bridge SEEMS to connect to the router, and indeed, the Ubuntu Desktop PC is able to access the internet. The server, however, is not, and neither computer can communicate with the other (ping, SSH, etc.) furthermore, the router recognizes the presence of these two computers on some level, but does not seem to know their IP addresses (I assume this is related to the computers' inability to communicate).
Before I get too far into this, here are a few links/items for the sake of clarity. The first is a shoddy diagram of my (proposed) network topology, for all of you out there who, like myself, understand things visually:[url]
This is the output from running "ifconfig eth0" on the Ubuntu Desktop PC, which sits behind the bridge. The PC is connected, and can ping hosts across the Internet, but can only ping the router locally (that is, it can't ping any other device in the house, on either side of the bridge):
Code:
The router uses wireless encryption, not MAC addresses, to restrict access/traffic, and all wireless devices (including the bridge) have been provided with the proper credentials. There shouldn't be any devices being denied access on account of their MAC address. In fact, the router's control panel lists the PC and the Server among the recognized devices (even lists their MAC addresses), but provides no IP address and always considers the two computers to be "offline." And yet, I am writing this very post from the Ubuntu PC. Sigh.
I am very comfortable with computers, and reasonably comfortable with Ubuntu/Linux and the Linux command line -- I've been using the operating system for just over a year now -- but networking issues have always been perched right on the edge of my understanding. In short, it's likely this issue has more to do with me than it does with the hardware itself (although the more forums I browse, the more I start to doubt this bridge...).
I'm trying to setup openVPN on debian, well this worked. But every client will get the same ip (172.17.0.6 - local it is). how to set my server in bridge mode. I've read about: server-bridge LOCALIP 255.255.0.0 172.17.1.20 172.17.1.100
BUT, my server has no ipv4 address, but only ipv6: 2001:41d0:2:b2d6::542a:74a so I am not sure how I can do this.
I have an Ubuntu VPS running 10.10 x86_64
This is what is in my /etc/network/interfaces right now.
Code:
auto eth0
iface eth0 inet static
address 67.202.x.x
gateway 67.202.x.1
netmask 255.255.255.0
auto lo
iface lo inet loopback
My server.conf
code....
I can get the VPN server running and everything connects fine from the client. I just don't know how to tunnel all the traffic through the VPS because it involves making the bridge which I'm having trouble with. What exactly am I supposed to put in /etc/network/interfaces?
I am trying to setup CentOS server 5 with tftp where the Cisco switch configs can be sent. I have the following:
[code]...
I was using Red Hat 7.3 forever and decided it was time for a change. I went to Fedora 10 but it was really buggy. CentOS 5.2 is VERY stable.Here is my problem.The server is command line only -- I tend to hate GUI"S.I setup Samba no problem disabling the ports needed through the firewall and that was straightforward.CUPS is a nightmare for me since CentOS locks down the cupsd.conf and then the firewall does its thing. I allowed port 631 through the firewall but then got lost on the cupsd.conf. It's been too long and the old redhat one won't work with CentOS (not surprising since it's a VERY old system) straight-forward CUPS tutorial for a command line interface. I just need it to be:
a) do this
b) do that
I have a Centos 5.2 VM running under Windows 2008 Hyper-V. If I add two "legacy Nic's" and bridge them, everything appears to work fine. However, if I remove the legacy nics and replace them with two synthetic nics (linux integration components), the nics seems to function fine UNTIL I add them to a bridge.This VM will eventually be used as a DansGuardian/Squid transparent proxy for a local library. The logical layout is represented by the attached jpg image. I have also included the ifcfg- scripts for the adapters and bridge for both scenarios.It would also be useful if someone else has Hyper-V with the integration components and dual physical nics to see if they can reproduce my symptoms on their box.Legacy Adapters:
ifcfg-br0:
DEVICE=br0
BOOTPROTO=dhcp
[code]....
I've setup a server for a small office (10 people) before with samba domain and file server with slackware. no problem there. now am tasked to setup a samba domain and file server for 300 users in 5 different locations. I am currently given a 1u rack server and I requested for 2x1tb drives that I plan to with RAID.
Some of the offices will be connected via VPN using sonicwall. Would it be ideal for remote users to login to the server in the HQ? Am not so familiar with how other companies setup their servers if they have multiple remote sites. Am also open to setting up servers in each site but because of the currently limited manpower, i'd rather have it close by so I can work on the server remotely if needed.
are there any things that I should consider or are there any good references on setting up a corporate server? the problem now is that the company uses google's email app as their email provider, I have gotten a host to do that already. But since they use email to share files, its not very efficient, hence the file server. But since there are a lot of mobile employees and employees in different sites, I would want them to be able to access those files being shared access the company or departments also.
Then I have to consider how to backup the files and other apps that the company will be using. SInce we will be primarily using linux, we would need to do virtualize some windows based apps that they are using now.
I have installed CENTOS / PHP 5.1.6 / JAVA 1.5.0_20. Now i want to install JAVABRIDGE for PHP and JAVA title should list in the PHP_info page.
View 1 Replies View RelatedI'm trying to install php / mysql on a remote Centos server.I've completed the installation stages but when I try ' php -v ' it comes up with these errors:
Code:
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/mcrypt.so' - libltdl.so.3: cannot open shared object file: No such file or directory in Unknown on line 0
[code].....
I'm trying to setup a couple POP accounts in CentOS. I started doing a tutorial that had me install dovecot, and now I have dovecot running but I can't connect at all.Does anyone know of a simple way to get email up and running? It seems like it should be easier than the 14 step tutorials I was finding on Google.Also, should I leave dovecot or try and remove it?
View 6 Replies View RelatedI am still in Linux Diapers. I setup a CENTOS SELINUX box on an internal network. So the only way I know to access it's served pages is by navigating to 10.1.1.40 from a computer within the network. The issue is that I need to create sub-domains for this server but have no Idea how to go about doing that.
Is there a way of creating an alias for the dev server so I can type something like "washington" into the web browser of a computer on the internal network instead of 10.1.1.40? Can I use a fake FQDN that on this server and get served its web pages or do I need to register a FQDN?
Background: I am creating a series of websites using Drupal and am trying to implement the multisites functionality (all the sites are run from a single code base). To do this they suggest setting up each site on a sub-domain during development. We have not yet purchase the FQDN's for the sites so I have no FQDN to setup.
I have successfully setup Apache,MySql,ftp, and a few other various packages.My question today is setting up an email server.I have past experience with sendmail,and procmail. However only on already installed,configured and working servers.I am trying to setup an email server from scratch.I have Centos 5.4 installed.
procmail.x86_64 3.22-17.1.el5.centos installed
sendmail.x86_64 8.13.8-2.el5 installed
Are those two packages the only ones I need to get a working email server setup? Also I have been trying to configure a procmailrc file for my server under /etc/, but I can't seem to find consistent documentation on how to set up a procmailrc file.I believe my iptables is set to block port 110 and 25 from outside connections. how to open those ports too.
Running CentOS release 5.4
We currently run a web server that allows FTP connections. I want to:
1. Disable FTP on our web server and require sftp only.
2. See if we can create a table of sites that are allowed to connect to the web server using sftp. Or should I just do this at the firewall?
I have been confused with the overall new 389 DS Server Setup.All I did upto now is:yum install 389-ds
and it did all the installation correctly.
All I need is Setup 389 Server with SSL.I did went through http://directory.fedoraproject.org/wiki/Howto:SSL but no Idea how to proceed.I am confused with the following points:
1. Do I also need to run setup-ds-admin.pl and setup-ds-dsgw too?
I tried running setup-ds-admin.pl and it stucked at :
The server 'ldap://389-ds.sap.com:45474/o=NetscapeRoot' is not reachable. Error: unknown error.
2. When Should I run the setupssl2.sh script? After running the above setup-* scripts?What changes I need to make on the script?
Is there a way to set a short cut so that you don't have to type out the full path to directories in CentOS? For example instead of typing out /var/log to get to log files, can you just type logs and have the OS know to cd to /var/log automatically?
View 7 Replies View RelatedI am having problems creating ssl certificates for use with openLDAP. Does anyone know a good centos tutorial as I am having problems finding ones by searching through google and the forums.
To clarify further I have a small network im trying to setup to use ldap for auth due to the size I figured using kerberos for auth would be a bit overkill.....
I have the server up and running fine however at the moment all auth is done by using clear text (which is fine as the network has no connection to the internet at current) however in the future it will so I am trying to use ssl however I am having confusing as which certificates I point to where in the slapd.conf file
I need to setup a small VPN server for about 20 people. Will a VPS with 192mb ram be enough to handle this? The only services I need to run is those necessary for VPN.
View 2 Replies View Relatedsetting up Bind for web-hosting as i am using Webmin to configure it?
View 4 Replies View RelatedI've currently got a centos server setup in my home. It has 1 website running on it and I am using DynDNS.com's service to access the server. DynDNS works by redirecting a free url to the IP address of your server. I would like to add a second website under a different url. However, I'm not sure how to add a second IP address (which I would then use with DynDNS to create a new url).
View 3 Replies View RelatedMy question is about setting up SMB and AFP failover between two servers. The plan is to have two servers both running CentOS with one acting as a primary node and one as secondary failover node. I have never set anything like this up before. In the past I have always worked with SAN's primary XSAN/StorNext. Both of which handle failover pretty much automatically. Unfortunately there isn't the budget on this job to install a SAN. Also this is only for temporary use for a week in a production office.
My thoughts where to run the two servers and use rsync on a cron tab to keep the data synchronised between the two. In an ideal world clients would log on to the primary and if that fails, seamlessly moved over to the secondary. I'm guessing however this is not possible outside of a SAN environment. So keeping the two servers synced and the clients manually moving over to the secondary manually is, I'm guessing, my only real option.
I have been given a "gift" of a Netfinity 5100 that currently has that other M$ operating system on it. I want to configure it as closely as possible to my web server located in Chicago that uses CentOS 5.5. and use it as a "test server".
This is daunting for me as I've only been involved with Linux for less than 6 months. I have Ubuntu 10.10 on my desktop PC.
The person who gave it to me indicated that I should plug it in and let the 2 arrays charge for 24 hours. I'm doing that. I also have had an electrician install a clean new 20 amp circuit for it. And I have downloaded and created a CentOS 5.5 i386 Live CD.
OK ... we've now exhausted my realm of knowledge. Can anyone give me a broad scope of what needs to be done? I will try to plug in the specifics of each step as I progress.
A assume I plug in a keyboard and screen to it. Do I use an ethernet connection between the server and my router to provide broadband ... what steps are necessary to configure that? Do I need to download and install Apache and MySQL .. if so, where?
I am currently trying to replace my Windows Server with a CentOS 5.3 box running nfsd for file serving. I have it all up and running however I cant see anyway of securing user access rights to the shares as all you need to access them is just clone the User ID of a user authorized to access the share of any Linux system which seems a bit insecure to me? I was wondering if there was any advice on securing access to server shares in CentOS.
View 2 Replies View RelatedThere is a particular java app called LanguageTool which we need to host on our centos server. Other applications are supposed to send an http request to this machine; this machine should pass this data (received over the http request) to the java application concerned, obtain the output from the app; and then send this response back to the requesting client...
We need to set this app as a service on startup. The centos machine might restarted from time to time; so we expect this service should startup automatically. What can I do to get this done?