Editing
Networking vserver guests RHEL
From Linix VServer
Jump to navigation
Jump to search
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==Public IP Space== 5.5.5.5 ==Chose a private IP range== Private IP Range: 192.168.1.0<br> Host Private IP: 192.168.1.1<br> Guest Private IP: 192.168.1.2<br> ==network-scripts== In a RHEL based system many configurations are stored in /etc/sysconfig. The network settings are /etc/sysconfig/network-scripts. <pre> cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:1 vi /etc/sysconfig/network-scripts/ifcfg-eth0:1 </pre> <pre> DEVICE=eth0:1 HWADDR=00:0e:0c:69:ed:e0 ONBOOT=yes NETMASK=255.255.255.0 IPADDR=192.168.1.1 TYPE=Ethernet </pre> This IP address will now start at boot up. <pre> ifup eth0:1 </pre> Assuming your vserver is test01 <pre> echo "eth0:1" > /etc/vservers/test01/interfaces/0/dev echo "192.168.1.2" > /etc/vservers/test01/interfaces/0/ip echo "255.255.255.0" > /etc/vservers/test01/interfaces/0/mask </pre> You can use iptables to make youre system act as a router. <pre> iptables -t nat -A POSTROUTING -s 192.168.1.0/24 \ -d ! 192.168.1.0/24 -j SNAT --to-source 5.5.5.5 iptables-save > /etc/sysconfig/iptables </pre> Now your guest should have outbound connectivity. <pre> [root@34 ~]# vserver test01 enter bash-3.1# ifconfig eth0 Link encap:Ethernet HWaddr 00:0E:0C:69:ED:E0 inet addr:10.10.10.2 Bcast:10.10.10.255 Mask:255.255.255.0 ... bash-3.1# ping www.google.com PING www.l.google.com (74.125.45.99) 56(84) bytes of data. 64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=1 ttl=244 time=22.3 ms 64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=2 ttl=244 time=22.5 ms </pre> ==Inbound Connections and NAT== Now we have to establish inbound connectivity. This can be done with Network Address Translation. We can expose the SSH service through NAT. <pre> 5.5.5.5:9000->192.168.1.2:22 </pre> <pre> iptables -t nat -A PREROUTING -s ! 192.168.1.0/24 \ -m tcp -p tcp --dport 9000 -j DNAT --to-destination 192.168.1.2:22 iptables-save > /etc/sysconfig/iptables </pre> [[Category:Network related]]
Summary:
Please note that all contributions to Linix VServer may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Linix VServer:Copyrights
for details).
Do not submit copyrighted work without permission!
Cancel
Editing help
(opens in new window)
Navigation menu
Page actions
Page
Discussion
Read
Edit
History
Page actions
Page
Discussion
More
Tools
Personal tools
Not logged in
Talk
Contributions
Create account
Log in
About
Overview
Paper
News
Developers
Donations
Search
Getting Started
Downloads
FAQs
Documentation
Support
Participate
How to participate
Report a Bug
Communicate
Teams/Projects
Hall of Fame
Resources
Archives
Recent Wiki Changes
Pastebin
Related Projects
VServer Hosting
Happy VServer Users
Tools
What links here
Related changes
Special pages
Page information