General :: Internet Gateway (Server Or Desktop Editions)
Jul 2, 2009
I haven't worked with linux before, I am a network administrator, mostly working with cisco routers and windows 2003 server configured with ISA, I want to shift to linux, since its a free OS, offers more than windows 2003 server, and I have the time and resources to test it at my work place, I want to give it a try. Now ... this is what I want:
I want to use Linux OS (server or desktop editions) as Internet Gateway, I have less than 50 hosts (internet users) on my network, and I simply want to know what is the most convenient linuxs distro for me to work with as a beginner to install, configure and administrating a linux OS(working as an Internet Gateway).
Its a simple network, 50 users connected to a switch, the switch to a server (where I will run the linux OS), the server to a cisco router, the router to the internet line. (Any tips on what do I need to be able to configure firewall rules and user activity monitoring like I am used to do with ISA on windows server 2003).
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Jun 11, 2009
I have been messing around with Ubuntu on an old PC I have and I really like it so I wanted to dualboot the family PC with Vista and Ubuntu to see if I could also convert my parents into linux lovers too. I got ubuntu installed on a seperate partition and everything boots fine, but when I'm in Ubuntu, it won't connect through our wired internet but if I'm in Vista, the internet is fine. I really want to start using Ubuntu on this computer but there is virtually nothing I can do in Ubuntu without the internet working. I also posted on ubuntuforums but they have only asked me to get them a bunch of codes from the terminal, that unfortunately I can't read.. but maybe some of you may know whats going on. [URL] This is the link to the other forum with all the information. The computer is a Gateway GT5622 with a Integrated Realtek 8111B 10/100 Mbps Ethernet LAN.
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Apr 2, 2011
I just set up a linux server which is acting as an internet gateway. For specific reasons, clients first make a vpn connection trough the internet to the linux server.
CLIENT ---->Internet----->Linux VPN Server ------> Internet
On the linux server iptables is configured for NAT. The problem is that the internet speed becomes slower than expected. I used windows and RAAS and the speed was pretty good. The server has only 1 NIC(eth0) and an alias interface is added to eth0. The alias is eth:0 with ip address 192.168.0.253
iptables config is as follows:
iptables -P INPUT ACCEPT
iptables -F INPUT
iptables -P OUTPUT ACCEPT
iptables -F OUTPUT
iptables -P FORWARD DROP
iptables -F FORWARD
iptables -t nat -F
iptables -A FORWARD -d 192.168.0.0/24 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -s 192.168.0.0/24 -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -j SNAT --to MY_VALID_IP
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Apr 23, 2009
Can any one suggest which versions and flavour of linux is best suitable for GATEWAY server or in which version and flavour of linux this gateway server is available, which is used for internet management with MAC locking.
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Feb 14, 2009
Since I have a new internetaccount, 2 days ago, I have a problem on my server [Fedora Core 8]. I use it as a router.
eth0 is for the internet.
eth1 is for my LAN.
But since my new internetaccount my server uses eth1 for the internet. This is a line from my syslog:
Code:
NetworkManager: <info> Policy set 'System eth1' (eth1) as default for routing and DNS. I killed the NetworkManager daemon and now it works but this must not be the way to do it? Where do I tell my server that I use eth0 for routing and DNS?
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Feb 5, 2009
What I need is some information to be studied and learned by me in order to be able to create with Ubuntu Server an Internet Gateway Server. From my ISP I get about 50 public routable IPs through DHCP. Into my LAN I need to forward this public routable IPs to machines but I want to be able to manage bandwidth and also to be able to enable or disable Internet access for every client machine. Maybe with subnets? Maybe with dchp really? It would be nice if it would possible through DHCP!
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Nov 28, 2010
I want to configure an Internet Gateway with having proxy, firewall rule, bandwidth controller for an office containing 100 employee. can anyone suggest me which platform will be best and steps how can I implement it.
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Feb 6, 2010
i did install opensuse and everything ok; i did configure it to be the server and gateway for a little office network Everything seems to be ok most of the time but sometimes (usually between 5 and 7 pm each day) internet stops working and there is no way to let it start again. So i turn off the suse, switch all cables to the old fedora server, just turn it on fedora and internet works. Turn off fedora, connect suse, let it start and everythng ok...it happens all the times
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Jan 20, 2011
i have a leased line ( speed 2 MB ) which we use to connect to our mail server , oracle ERP etc.. we have a dhcp scope defined as 192.168.100.1-192.168.101.254. with a default gateway as 192.168.100.90 ( which is a cisco router ) we have a pix firewall ( 192.168.100.10 ).. now the gateway passed all the request to firewall..we have an ADSL of 4 MB speed.. ip is 83.*.*.230 from ISP. i have a proxy server ( squid ) eth0 is connected to ISP (83.*.*.230).. eth1 to LAN ( 192.168.100.79 ) now the problem is when i put default gateway to eth1 ie 192.168.100.90 the squid connects to internet via leased line.. if i leave the default gateway field empty on eth1 , the squid connects to internet via ADSL ( which i want ) but the problem is no one on the lan cant ping the squid server ( no connectivity to internet for the whole LAN ) how can i solve this problem? PS : i want squid to connect to internet with ADSL, but if i put gateway on eth1 ie LAN squid goes through leased line which i dont want to happen
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Sep 27, 2010
In one of our network we are using one firewall which works as gateway. All machines are able to access internet through this gateway. There is no filtering and any internet restriction. I would like to setup monitoring system which monitor and log bandwidth and sites access by client machine. Is there any tool which monitor internet access as well as sites which are access from client machines.
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Aug 2, 2011
We are using Linux machine as a gateway server to connect our local network to wan. We use pptp vpn to connect our remote customers network, is it possible to connect VPN to the gateway and make local network to connect through it? So that there is no need to connect vpn in every local client.
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Jun 14, 2011
I have configured bonding on 64 bit centos 5.4 I have to put the machine to a different VLAN for that i did the Ip change and restated the network. but i cant ping the gateway or any other server in that network. the cofig files are as follows
vi /etc/modprobe.conf
alias eth0 bnx2
alias eth1 bnx2
alias scsi_hostadapter aacraid
alias scsi_hostadapter1 ata_piix
alias usb-controller ehci-hcd
alias usb-controller1 uhci-hcd
alias bond0 bonding
options bonding mode=1 miimon=100
[Code].....
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Nov 7, 2009
My local library (you know, the place where they loan you books) started to supply books digitally.
Unfortunately, they only support "Adobe Digital Editions", which again only is supported in Win/Mac
I googled it, and I can see that somebody made it work in "Wine", so I would like to do the same thing.
I installed Wine now (yum install wine) and I got the executable Windows file here: [URL].. how can I proceed further?
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Feb 1, 2011
I am using Mandriva 2010.2.I installed Adobe Digital Editions using Wine and the install went fine. I can run adobe digital, and i can download books from my public library (download.maine.infonet.org) and they will open in Adobe Digital Editions. My problem is this: I have registered my copy with Adobe but I want to transfer these to my PanDigital Novel (white) and the device doesn't show up in Adobe Dig Editions. It does show up in Dolphin and I can browse the device. But I want to drag a book from Adobe Dig onto the PanDigital device. I am guessing it might be something to do with the way Wine recognizes devices - but being a bit of a newb i could be way off base. I checked winehq and it appears that Dig Editions 1.7 (version i am using) has silver or gold support.
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Sep 4, 2009
I have installed fedora 11 64 bit on a new computer. I have no problems accessing the computers on my local network, but can not get past the gateway. The gateway is running windows XP with IP address 192.168.0.1 and is named "internet". When I boot the new computer in windows, there is no problem. Here is the output of some commands I saw in other posts with similar problems:
$ /sbin/ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:24:8C:7F:10:0C
inet addr:192.168.0.245 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::224:8cff:fe7f:100c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]....
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Jun 19, 2010
Whenever i used to setup a new connection in Windows it would just ask me User name and password here i need to fill up something called as "Gateway" !? The connection won't be accepted unless i fill up something in there... So, what do i put in there? I'm on a LAN of 3 computers connected with a router.The router takes one wire as input from the modem(cable).
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Jun 28, 2010
I'm having some difficulty with a internet/vpn setup. I have 3 network adapters on the server. 1x is used to connect it to the rest of the network 1x is used to provide internet (squid,dansguardian) 1x is used to connect to the vpn router
My interfaces file looks like this:
Code:
# 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
iface lo inet loopback
[Code]...
The problem that I have is this: When the gateway on eth2 is set to 10.0.2.2 the VPN works 100% but there is no internet. When the gateway on eth2 is set to 192.168.0.6 there is internet but no VPN.
So what I want to do is, route all traffic that is supposed to go to 10.0.2.0/24 and 10.0.3.0/24 to eth2 and all internet traffic to eth0.
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Jul 11, 2009
I have installed eeebuntu NBR on my laptop and it looks great on a 17 inch widescreen. It looks so different from the usual interface that I get people ask about it and I can evangalise without being considered a boring weirdo! Anyway, I have one problem. Every time I boot I have to run the following command.
Code: sudo /sbin/route add default gateway 192.168.0.1
How do I get this to happen automatically (as it normally does)?
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Sep 27, 2010
have a netopia 3347-02 Wireless ADSL Gateway that i got from at&t. i am no longer with at&t.i switch over to cox. I have the cox modem. i also have cable on the modem. when i connect a ethnet cable from cox's modem to my laptop my internet works. but i want to use the netopia 3347-02 Wireless ADSL Gateway that i got from at&t cause of the wifi. when i login & connect to the netopia 3347-02 Wireless ADSL Gaut it in bridge mode.internet works fine, but im not able to use wifi, im also not able to login into the admin page. i have to do a factory reset on it so i can log back in. So how can i make it work with cox modem?
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Dec 30, 2010
I have been running 10.10 server with no GUI for a few months without issue. I decided to install ubuntu desktop (GUI), because I want to turn it into a media server, and I'm finding that my Internet browsing fails intermittently. i.e. I can get [URL] sometimes and sometimes not. I have tried traceroute and found that I do not reach my local router on addresses that fail, and yet I get a full trace on addresses that are ok. Ping tests too.I remember from some time ago that the GUI may cause a network problem but I'm not sure.
By the way, other computers on the network can access this host through Samba so the NIC is working fine.
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Feb 3, 2009
I have two computers. The first computer has windows xp in it and is a member of the local lan with ip address 192.168.11.21. The second is my laptop having ubuntu 8.10.Both these computers are connected to each other via the broadband router which assigns ips 192.168.1.3 to my laptop and 192.168.1.1 to my desktop. I am able to browse the lan of 192.168.11.x via the desktop and I want the same possible on my laptop whose only connection is through the router to the desktop. Is there any way I can do it?
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Sep 23, 2010
Previously had 2 Ubuntu computers setup Computer A (192.168.1.101) <=> Computer B (192.168.1.100) -> Internet Computer B was the gateway, and it is dual boot, one drive Ubuntu, one drive XP. I'm using XP as the gateway now, but Computer A is extremely slow, virtually nothing getting through.
Have checked sysytem logs, verified /etc/hosts file, and all the network side of things. Can ping either IP adddresses from either computer. On the XP side, have modified hosts and lmhosts, and the XP computer has very fast internet connection.
Did have Commodo firewall running on the XP, disabled that, and checked that no Windooze firewall was running. Have restarted the network on both computers a number of times. Can't figure out what the problem is. It's obviously on the XP side, as when I booted to Ubuntu (previously) on Computer B, the gateway worked just fine. Have checked the whole tcp/ip side of things on XP; seems to be okay.
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Sep 13, 2009
I have 1 root-server with 2 NICs, both having their own internet IP addresses:
Code: eth0 = 8x.x.x.183
eth2 = 8x.x.x.205 We only have one gateway on that network:
Code: gateway = 8x.x.x.1 We want to use eth2 for postfix + http, and eth0 for all the other stuff.
How can this be setup ? With route / ip route / iptables ?
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Feb 6, 2011
I'm not able to get the Desktop Effects/3D graphics to work on a Gateway laptop. I suspect that I'm not using the correct nvidia drivers but I don't know what drivers I need for my system.I followed the instructions from this link with no luck.
Some system info:
# uname -rs
Linux 2.6.35.10-74.fc14.x86_64
[code]...
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Jul 29, 2011
I have a fedora 14 box which has a static IP and I can not contact the internet or even my gateway router.I know it has to do with my kernal IP routing table but I can not find the command to do what I need...Here is my kernal IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
My gateway is 192.168.1.1 and my static IP is 192.168.0.2.
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Sep 7, 2009
Am working as net admin in an institute.. I have Leased Line connection with Public IP? I configured Red Hat Enterprise Linux 5 as Internet Server. I successfully Configured squid and as well as Internet Gateway in my Internet Server.. All are working fine in my client PC environment.. I have one Series Problem in my all Windows Client Pc.. When I try to surf Microsoft and Any Anti-virus site through squid(port no 3128) is fine?but when I try to surf the same Microsoft or any anti virus site through Linux Internet gateway then I got ?Page can not be displayed error?? but all other sites are surfed well through Gateway.. I felt some spy ware is attacked in my All windows Client PC.. So only it ll block Microsoft or any anti virus site through Linux Internet gateway(default port 80
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Jul 7, 2010
I have trouble getting a gateway to the internet when setting eth0 with a fixed IP address. The gateway address (192.168.2.1 my modem/router) resets to 0.0.0.0 whenever I apply the changes. DHCP works fine but I need a fixed address for my server.
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May 12, 2010
I have 17 system (sys1,sys2,sys3.....sys17) in my office, and i am willing to setup a dedicated system to act as a firewall for that i have selected sys1 with two NIC(eth0 for local network and eth1 for internet) and i have configured to access internet in my office for that i have opened a wellknown port 80.but my clients are not accessing the internet..
and please check my sample IP configuration !!!
interface : eth1 (ISP IP)just for example
IP :192.168.0.2
gateway:192.168.0.1
dns:202.56.230.5
dns:202.56.230.6
Interface : eth0 (my local lan )
192.168.1.1
255.255.255.0
IP address of xp clients ranges form 192.168.1.2 to 192.168.1.16 with default 255.255.255.0
my question is that which gateway address and dns i have to give to my clients for accessing internet ?...
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Mar 4, 2011
I am wanting a computer with an external dialup modem (ppp0 modem through a com port /dev/ttys1) to act as a gateway to the internet, forwarding internet traffic through ethernet (eth0 is set to static 192.168.2.2) to a router (the router is 192.168.2.1) where it will be broadcast to other wireless computers like my laptop (192.168.2.3). I've had this setup until recently when the gateway computer (the one with the modem) died. Now I'm replacing that machine with another box and an install of Ubuntu 10.10 but so far things aren't working for me.
Success so far:I have dialup access working on the new box. Took me a while to work out the configuration for getting dialup working, though the IP address is Dynamic (or it won't stay connected), "Check carrier line" is off, and "Ignore Terminal Strings (stupid mode)" is on in order to successfully connect and stay connected to my ISP. I also had to make my normal (non-root) user "lancer" a member of the "pid" group (the reboot) in order to use gnome-ppp as non-root. The laptop (192.168.2.3) is successfully connecting to the router (192.168.2.1) as I can see the router configuration page when I type http://192.168.2.1 into the laptop's web browser. This setup is unchanged from how I had it before when this was previously working and I don't want to change how the router itself is set up. What I want is to know what to fix in the new box in order to get it connected to the router (through ethernet) and bridging the internet through.
My problem is that whenever I plug in the eth0 from the gateway (192.168.2.2) to the router (192.168.2.1), Ubuntu's automatic plug-me-in network detection kicks in and I find my dialup no longer working through some kind of IP conflict (at least that's what I think it is). Maybe I don't have the "gateway" correctly assigned? (in the gateway computer for the ethernet connection, I had it pointing to itself as I don't know what to put for "gateway IP" as that is automatic So, just to check my connection, here I am pinging google (from the gateway computer which has the dialup modem) once a dialup connection has been made.
Code:
lancer@lancer-desktop:~$ ping www.google.com
PING www.l.google.com (74.125.237.17) 56(84) bytes of data.
64 bytes from 74.125.237.17: icmp_req=1 ttl=55 time=179 ms
64 bytes from 74.125.237.17: icmp_req=2 ttl=55 time=176 ms
64 bytes from 74.125.237.17: icmp_req=3 ttl=55 time=158 ms
[Code]...
What do I need to do in order to make Ubuntu of my gateway computer stay connected to my dialup but also simultaneously share an ethernet LAN to my wireless router and feed traffic to the other computers from there? I have googled this but some of the most promising instruction (e.g. http://www.ubuntugeek.com/sharing-in...in-ubuntu.html) call for packages like dnsmasq or ipmasq which seem defunct now in Ubuntu 10.10. Other pages seem to suggest dual-networks "can't be done" in Ubuntu [URL].. (what!?! I had it before my other gateway died)
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Apr 6, 2010
I have been beating my head for the last few weeks on this problem, (although I have been taking the wrong approach, it seems).
I need a gateway to direct web traffic to three separate servers/domains. I have been trying to do this with both a dns server and , (seperatly), apache server to forward requests. The dns server was a no go, and <i can only get apache to redirect http and ftp.
After Googling this ALOT, I believe that what I need is a gateway server to redirect my traffic to the 3 different servers. I have been reading about using using nat and iptables for this and was wondering if anyone had any advice/suggestions on this. The other thought I had was to use something like pfSense to create the gateway, but I am still reading the documentation, and I am unsure if this approach will work.
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