Networking :: Setup A Firewall In Home Network Environment
May 2, 2010
I am attempting to set up a firewall in my home network environment. the rest of the environment is windows, sorry I am attempting now so bear with me. what I have is a cable modem coming in, then my fedora 11 box with 2 nics, then the wireless router and the rest of the network.
everything works fine until I put the linux box in. If I put the firwall in the firewall sees the internet but the wireless router directly after does not. I am doing something wrong with the dhcp I am guessing. I dont want the firewall to give the address to the network I want the router to. I tried to get the firewall to do it (yum install dhcp leafnode) but it kept saying something didn't work right.
so I figure I will let the cable modem give the firewall an ip and the router give the rest of the network their ip's but how do I get the firewall and router to see each other and allow passthrough?
View 1 Replies
ADVERTISEMENT
Nov 18, 2010
I've been learning linux for a while now with half an eye on making a career out of it in future. One sizeable gap in my knowledge at the moment is networking. Is it feasible/desirable to set up a network of virtual machines to use as an environment to learn networking? My budget is non-existent so I was hoping to be able to get a basic understanding of the principles from installing a few desktops, a virtual gateway etc on VMware workstation on my laptop, and doing a lot of reading online.
Is this feasible, or will I just end up learning about virtual networks instead of real ones? Also how much power would be required, because my 3GB RAM lappy has just gone bang and all I have now is a (new) 1GB RAM lappy.
View 10 Replies
View Related
May 18, 2010
I am learning to setup firewall in my home for that i have selected four system(sys1,sys2....sys4) for testing .I have configured sys2 to act as a firewall with two NIC. sys3 and sys4 are inside the firewall . sys1 is not connected to firewall for testing purpose.
the IP assignments are follows :
sys1 : ( fedora, not connected to firewall i am thinking, But i am not sure )
IP : 192.168.2.1 ,
gateway : blank
dns1 : blank
dns2 : blank
sys2 firewall ,IPTABLES )
code....
what happened is that sys1(not connected to firewall) can ssh to sys4(connected,inside firewall),since the rules are written not to ssh form sys1 to sys4..
then I came to know whatever the request I give, It directly goes as sys1 --> sys4. Not as sys1-----> sys2(firewall)---> sys4 .and the firewall is not filtering and processing anything for both inbound and outbound (i think it's my mistake some where). the requests are directly going inside without firewall.
View 3 Replies
View Related
Jul 21, 2010
I planned to setup raid 1 mirroring for my small home environment. Then I selected two new harddisk and connected to my system. I inserted my fedora dvd and I clicked raid button in the graphical installation process by refering redhat docs. I installed successfully in /dev/sda /dev/sdb it works fine. For testing purpose I removed one harddisk /dev/sda. My system didnt boot it shows grub error. Why this happened? Since I have configured raid mirroring why the system is not booting from second harddisk /dev/sdb.
View 1 Replies
View Related
Feb 6, 2011
I have three PC's. PC-1 is a newish Dell Vostro 320 running Win 7 as the prime OS with Ubuntu Linux 10.10 dual boot under the control of EasyBCD. PC-2 is a Dell Inspiron 6400 running Ubuntu Linux (10.10). PC-3 is an oldish Dell Inspiron 6000 laptop dual booting Win 7 and Ubuntu 10.10. All three PC's share a DSL connection to our ISP and network using the wireless router capability of the DSL box (a Billion 7401 VGP-M). All three PC's can access the internet using the DSL box both wired and wirelessly under Windows or under Linux. PC-1 is the primary PC and runs Win 7.
PC-2 (Ubuntu 10.10) is running fantastically well and can access PC-1 running Win7 as a member of WORKGROUP for print sharing and for file sharing. The primary PC-1 can also see the files on PC-2 as a member of a Windows WORKGROUP. Simple home networking is working as it should with this setup (PC-1 under Win 7 and PC-2 under Ubuntu 10.10). This has been like this since the installation of Ubuntu on PC-2, which included setting up network printing from PC-1 (Win 7) under Samba.
The problem is thus: If I boot PC-1 or PC-3 up under Linux, I lose all networking capability between the three PC's including print and file sharing, but they can all access the internet through wireless or wired connection. I have configured Samba and done all the home networking troubleshooting especially:[URL]..All to no avail. As I said, my aim to ditch Windows and move all three PC's to Linux but I can't do this unless I can get Linux home networking working properly. By properly, I mean all PC's running Linux or two under Linux and one under Windows 7 and be able to share files and a printer attached to PC-1. I am a Linux virgin and am hoping that a knowledgeable person can tell me what's going wrong and point me to setting up a simple home network under Linux. It shouldn't be this hard.
View 7 Replies
View Related
Mar 29, 2009
how to setup a home network for learning purpose. i have two laptops and a desktop connected to a modem-router for broadband (wired connection), i want to setup one as server and the others as client.
View 2 Replies
View Related
May 31, 2010
I just switched over to ubuntu 10.04 LTS Netbook Edition from Windows XP and I am wondering how to setup a home network and share files with other computers in my house? I tried going to Preferences -> Personal File Sharing. But the options for 'Share Files over the Network' is grayed out. The message is "This feature cannot be enabled because the required packages are not installed on your system."
View 9 Replies
View Related
Apr 3, 2010
I'm trying to setup OpenVPN in order to connect back to my home network while traveling for secure browsing and such. However, before I can even start trying to set that up I tried to see if I could open port check my computer through the net. And I'm having a hard time doing that.
As far as I can tell, here are my roadblocks:
1. Is ISP (Qwest) blocking my ports?
2. Is my modem doing the proper port forwarding and firewall?
3. Is my router doing the same?
4. Is my firewall on the computer allowing the request?
To minimize sources of error, I've turned off my local and router firewall and setup my router to forward ports. I'm not to familiar with my modem, but I'm pretty sure that the firewall is turned off by default and I think I've done port-forwarding correctly. But still no success when doing an open port check. At this point I don't know how to diagnose the problem.
View 2 Replies
View Related
Jul 24, 2010
I'm trying to get OpenMPI (a parallel programming library) working on my home system. I have just two machines on it now, t61 and quad, connected through a router. (Which is also connected to cable modem for internet.) I can ssh between the machnes, mount directories with NFS, etc. However, I just can't get the OpenMPI to run. The OpenMPI message board suggested that the most probable cause is that the firewall is blocking TCP. I don't know how to tell if that's the problem, and can't find any manual for the SuSE firewall, while the various Wikis &c that pop up in a search don't provide any information that addresses my problem.
View 9 Replies
View Related
Aug 10, 2010
I have a new install of an OpenSuse 11.3 server and I do not see the IPSec Support option when I use Yast to set that I up. I have the firewall setup with 2 interfaces, one external and one internal and that is all working fine. When I connect via my laptop and connect in via a Cisco IPSec VPN, I get connected, but no traffic goes through.
I did search through the forums, but I don't see any hits related to the issue I'm facing. I installed the ipsec-tools, but I am still not seeing the IPSec Support in the firewall section of Yast that I see noted on many Google Searches. Is there a package or something configuration that is needed to get IPSec Support for VPN setup?
View 2 Replies
View Related
Jan 3, 2011
I currently want to set up a network with 2 Ubuntu servers (mail and web) in a DMZ in order to separate them from an internal network. I want to use a dedicated Linux firewall. This firewall will have 3 network interfaces on it. One network interface will connect to the external router/modem (router and modem in one box), one interface will connect to the DMZ and the other interface will connect to the internal network. The router/modem lets you put, I think it's 1 or 2, interfaces in a DMZ.
But, when I think of any of the dedicated firewall's or servers' interfaces it doesn't make sense to me to put any of them in the router/modem's DMZ (I think it would be better for the dedicated firewall's and the servers' interfaces to have static private I.Ps ie 192.168.2.4 etc right?). What I mean is that even if, as far as the router/modem is concerned, none of the interfaces were in a DMZ, the area where the servers are would still effectively be a perimeter network and with such a set up would still be, effectively,a DMZ, right?
View 7 Replies
View Related
Nov 26, 2010
how to setup a home network with my three ubuntu boxes. I've looked around online and tried from what i know with windows to setup a file sharing network, but i haven't had any luck. I've been using ubuntu now for almost seven months and would really like to figure this out to expand my setup.
View 9 Replies
View Related
Apr 21, 2011
Before I go any further I must admit that I'm pretty rubbish at setting these up, so please be gentle!
Now my problem; I have a normal desktop pc (I don't want to set it up as a server) but when I check the hardness of my set up with Gibson Research Centre, it fails. It can see ports 22,23,80,443 as closed but still visible.....? I have never had this happen to me before and struggling my way through yast firewall tool, I can find no easy way of sorting this out.
View 9 Replies
View Related
Jun 22, 2011
I have 1 Desktop and 4 laptops...All the machines are a mix of Linux and Windows OS...The Desktop has only one OS - Windows XP - Pro..
The printer is a HP Deskjet connecting thru USB to the Desktop
The Desktop is connected thru ethernet cable and all the Desktops are connected Wirelessly to Internet..
I want to use the Desktop as a Hub for my Music files as I have too many and cant spend time copying from one machine to another...I also want to print directly from the laptop by sharing the printer.
There is a locational problem in the sense ,The Desktop is in the ground floor of my house...I have the laptops in 1st and 2nd floors..So at night time I cannot be running up and down to turn on / off the Desktop.
I installed VNS tight viewer which allows me to control the remote desktop from my laptops...It is beautiful in the sense at night I can switch off the desktop from first or 2 floor after the work is done.
But I guess you cant pull files from remote desktop as it seems like a chrooted environment... Even If I try to play any file it would be from my Desktop and not laptop....
So how do I go abt it ? ---Samba for share and VNC for physical control --(on/off)?
View 5 Replies
View Related
Oct 27, 2009
How do i set up my firewall to allow traffic from iperf?
View 6 Replies
View Related
Mar 4, 2009
I'm an it student and a newbie in linux OS.
We have this final project that we have to set-up
a firewall in a linux redhat OS which i totally have no idea ..
i did some research but haven't found the right one.
View 2 Replies
View Related
Feb 9, 2010
I want to setup a router with firewall on ubuntu box that will connect windows pcs one serving as outside source and one serving as inside target.
View 2 Replies
View Related
Nov 27, 2008
We have a new Bussiness DSL line with 16 public addresses.What we want is to setup a DMZ to run some services and internet to the LAN. Here's a schematic of what we want:
Code:
Backup Internet Main Internet
connection connection
| |
| |
SDSL Modem BDSL Modem
[code]....
The webserver has the following settings:
IP: 12.34.56.125
subnet: 255.255.255.240
gateway: 12.34.56.126
What IPTABLES rules do i need to setup to "see" all IP's in the DMZ-2 from the internet?
View 2 Replies
View Related
Aug 26, 2009
It it possible to setup a bind server for my internal network at home? Currently, all clients DNS requests go to my Verizon FIOS router, which also acts as a DHCP server. I would like to setup a another DNS server using BIND for studing.
Current setup:
Client --> Router (DNS Server) --> Internet
New BIND server setup:
Client --> BIND Server (2nd DNS) --> Router (Primary DNS) --> Internet
How would I go ab this? Would I have to configure a cache naming DNS server?
View 3 Replies
View Related
Mar 4, 2011
I'm trying to set up a bind9 server for my home network, I have all my IPs set to 10.0.0.X. I would like the forward and reverse to be simply "machinename", not "machinename.domain.com", as I don't want to type a domain everytime.
In my named.conf
zone "net.local" in {
type master;
file "/etc/bind/net.local.ns";
allow-update { none; };
[Code]...
View 1 Replies
View Related
May 4, 2010
I am attempting to setup the following:
1.User login/authentication via a single NIS server.
2. User home directory should also be on the Same NIS server.
3. If possible to setup a single shared home directory for all users.
OpenSuse version 11.2 There are twelve workstations from which users will login using the NIS authentication. I have succeeded in setting up NI server. However login fails as the home directory is not accessible.
View 9 Replies
View Related
Aug 23, 2010
I'd like to set up my home network with an Ubuntu file/internet server. In addition, I would use this server to monitor internet traffic. What hardware/software would be required?
My current network is as follows:
Laptop 1 Ubuntu 9.1
Laptop 2 Vista
Laptop 3 XP
Desktop Ubuntu 9.04 (would be used as server)
All connected thru linksys wireless router to cable modem.
View 2 Replies
View Related
Aug 16, 2010
How to open RTP UDP ports (port_number : port_number) in openSUSE 11.2 firewall with yast?
View 2 Replies
View Related
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 ?...
View 1 Replies
View Related
May 16, 2009
I'm going to setup a File and Printer Sharing in my little home network... 3 Computers actively connected to the Web through a single ADSL2+ Wireless Router (number of Computers will increase later) At the moment 2 of the computers are running Fedora 10 and 1 running Windows XP...
Now i want to setup the 3 machines to use 1 printer which is connected to one of the Fedora 10 machines, and i want File Sharing to be enabled so each machine can easily view each others shared files and also be able to print when ever needed (ofcourse the machine with the printer will have to be on for the printing process to happen) I've installed Samaba on each Fedora Machine, enabled sharing but i dont seem to be able to view the Windows machine or each other....
View 6 Replies
View Related
May 17, 2010
I'm using virtual network (NAT network) for my domU.When I change dom0's firewall setup, the domU will fail to connect to Internet anymore.So far, the only way to bring the network back is reboot dom0 !I try to restart service network and libvirtd on dom0 ... it doesn't work.How can I bring the domU network back without reboot dom0 ?
View 1 Replies
View Related
Jun 4, 2010
I greet you at the same time ask me to help with a problem I have and I could not solve. Within the requirements I have is to connect a network that is connected by VPN to my LAN.The detail is I could have connection to the network by adding a network card (eth3) on the firewall and connect to the VPN router (DLINK) cable network, but I can not reach the other estin that are in the VPN.
It should be noted if I add a station within the network: 10.30.1.X/24 has no problems connecting with the other destinations.Physically this router is inside my 10.30.1.X DATA CENTER another wan.
View 1 Replies
View Related
May 30, 2010
I'm trying to setup a NFS4 server (no security, local home network behind FW). It seems that I'm missing something because 'rpcinfo -p' does not list v4 for NFS: petit-pois:/home/eric# rpcinfo -p
[Code]...
View 3 Replies
View Related
Jul 22, 2010
I am replacing a home network - Windows Server 2003 and 5 PCs (XP Pro) with UBUNTU 10.4 LTS Server and client versions. I am keeping a couple of the PCs with dual boot until I can migrate everything over (Having some issues with iTunes, Family Tree Maker, Media serving, DVD decrypt and a couple of others, but that is for another post). It was great fun getting the server up and running using only shell commands. Took me ages just to get a folder shared! Migrating the data over from NTFS to ext3 was also fun given the limited space on the partitions.
I really only want to use the server for communal network type things ... central user account maintenance, shared folders for music, video etc and data backup. I don't need it to be performing server functions on the Internet e.g. web server etc although that may come later. How I set up central user management? All the PCs are currently setup with local user ids, and it is a bit of a pain to go round each PC every time I change something.
The server is not always up, so I need to be able to log into the local PC without it being active. I was using Active Directory on Server 2003, but I don't need anything that complex really ... just 3 or 4 users to manage. I have been looking at the setup tutorial at [URL] but am not sure how relevant a lot of it is. I have SSH setup so I can login remotely, NFS is working to share the folders, but that is about all I have done so far.
View 2 Replies
View Related
Mar 25, 2011
I suspect this is an initial configuration bug. All firewall logs seem to be going to all
three files. That causes a lot of clutter in the log files, and makes it difficult to see whether there are any serious problems being logged.
View 9 Replies
View Related
