i wanted to deploy a firewall for my wireless network. low power footprint & small device that can be installed with linux to create a small firewall appliance.i might try configuring shorewall on it.
View 1 RepliesIs there any one know how to deploy a remote OS installation for a host with public network address? In a LAN with private network, we can use PXE, kickstart... but what we could do with the hosts have only public ip address?
View 2 Replies View RelatedWe are going to deploy a new network with PCs and servers. until here, Windows was choosen. However, because of legacy applications, Linux is now chosen. Therefore, I am looking for something to replace Active Directory. I know there are software for eacho prupose (BIND for DNS, But I would like to have a central tool with integration between services as Active Directory can provide.
The services I need are:
- DHCP
- DNS
- Directory for central authentication (workstations are not on stand alone)
- File shares
- Binary repository for upgrade (as WSUS on Windows)
- NTP
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.
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.
I am a networking admin of a network running a mac osx server Running the Darwin 9.8.0 kernel. My goal is to get a firewall computer running ubuntu with the program IQfirewall. My networking hardware goes ( __ cat 5 cables)
*internet* _____DS1___ cisco router_____ a small switching hub___OSX server___a ProCurve switch ___ a cat 5 box____ routers ___ computers.
from what i have read I want the server to act like a gatway/firewall and sort of have the server forward packets to the OSX server.How would I get started. IQfirewall uses a GUI interface and I can later copy my rules if you would want to see them. it is based off of iptables
I want to write a custom rule to allow all connections to the ip addresses on my local network (192.168.2.2 through ...99) but I don't know how. I know adding a custom rule asks me to read a file and put it in "iptables" format, but I don't know how...
View 5 Replies View RelatedI am new with IP tables stuff and i have a problem....i have a pc Contain a fedora OS and i want to make a small network (4 PCs Contain XP OS) and using the pc of fedora OS as a firewall i want to Prevent the ping (i think it called(ICMP)) in the privat network and prevent one of the PCs from Browsing internet(prevent port 80 and 81 as i think) and i still don't know how to make the internet go Through the firewall to the private network...
Note: WAN = eth0
LAN = eth1
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?
Does anyone know if it is possible to filter/block network traffic between internal hosts on a lan?
Eg. : Linux firewall/router ( 192.168.0.1) - LAN Default G/W - all internal > external traffic gets filtered.
How would you filter tcp/ICMP/UDP traffic from internal host a ( 192.168.0.2 ) to host b ( 192.168.0.3)
All the internal hosts have the linux f/w as the default gateway, and are all on the same /24 subnet.
I would like to know if I can filter traffic between internal hosts.
I have just installed CentOS and it is working fine!I made a masquerade with the document there: I didn't used the script, because right now, I do not completely understand it, and obviously I am not modifying anything by leaving it like that.I was using Mandriva before and I am used to graphical tools My questions are:I add the following lines in my iptables:
[root@localhost ~]# service iptables stop
[root@localhost ~]# iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
[root@localhost ~]# service iptables save
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I'm working on setting up access for our developer via Telnet, we are on a local network behind a physical firewall. I set up the standard Telnet service for Fedora15 and from localhost I can login via any user and root.... However I cannot login from another terminal on the LAN, even though I can ping and FTP to the fedora15 box. I added the firewall rules for telnet, that did not work, so I disabled the firewall, still cannot get a connection via port 25. I feel either port 25 is closed in another manor or the telnet is restricted to the localhost.
Also I cannot login to root to configure the Firewall Desktop GUI, only standard users, is this an issue? I also cannot login to the console as root even though I use the correct password.I can only su to root and sometimes it is a PITA. There must be some settings to clear these issues up...
i have a hp 6500 e709a printer. have configured for network printing and would like to use the scan facility.i have tried to scan from the printer but it does not find the computer. the hp documents mention advanced firewall information on incoming udp ports and tcp ports etci believe it is with my machine as my son has a windows box with the hp software and i have managed to scan from that machine.
View 4 Replies View Relatedcould set up a firewall on my linux machine? I have is to connect my router wired to the linux machine and then from the linux machine to my main computer, and obviously routing the internet connection through the linux box as a firewall. I use a Netgear DG834G router
View 9 Replies View RelatedI 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.
I recently reformatted and dual partitioned to both Windows 7 as well as ubuntu 10.10. Loading works fine and Windows 7 is 100% operational. I cannot seem to get my wireless network adapter to be read by Ubuntus 'Windows Wireless Drivers' gui. Here are the steps that I have done THUS far, to make sure that we are all on the right path. Before I go any further, my wireless network adapter is an old school WUSB11 Linksys Wireless Network Adapter (running version 2.6).
1) Downloaded and installed "ndiswrapper" from ubuntu's main website. I downloaded the common, utils and ndisgtk files and installed them accordingly.
2) I extracted these three files to the desktop of Ubuntu and accessed the terminal page.
3) From terminal I typed "cd Desktop" to change the directory to the desktop.
4) Next, I typed in "Sudo dpkg -i ndiswrapper-common_1.54-2ubuntu1_all.deb
Sudo dpkg -i ndiswrapper-utils-1.9_1.54-2ubuntu1_i386.deb
Sudo dpkg -i ndisgtk_0.8.5-1_i386.deb"
5) This installed Windows Wireless Drivers gui successfully and I can access it.
6) I have downloaded the driver files for the adapter from the cisco website and searched them for the required files needed.
7) After extracting the .INF file from the "Drivers" directory named "NETUSB.SYS" (I wasn't sure if the other associated files within the same folder needed to be present together with NETUSB so I moved everything to the desktop) I typed in "sudo ndiswrapper -i NETUSB.inf". After accessing the Windows Wireless Drivers gui I have noticed that the 'netusb' driver is present yet under it, the system states "Hardware present: No". This leads me to believe that maybe I installed incorrectly or my "fireware?" is not present? I was reading through the installation guide posted on the ubuntu website that in addition to the .INF file we also need the BIN file(s)? and SYS file(s)?.. The folder with the drivers for my adapter contains a BIN file but it is not within the "Drivers" section of the folder.
9) Upon mousing over the network Icon naturally my hardware is still not present.
10) From what I gather after the system finds the hardware I am to write into the terminal
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Samba is working correctly if Susefirewall2 is off. I have added Samba client and Samba Services for extern access but samba is not working when firewall is now on. Which services should I also add ?
View 1 Replies View RelatedI am severe wireless problems with Ubuntu 10.04 on my laptop.(Spec below)
I have just performed the first clean install since new. Installed a new Hard Drive as well. The machine and wifi was fine under Ubuntu 9.04.
It is booting much faster now but the wifi keeps dropping off.
Spec:
Machine - Acer Aspire 4310
Wireless card - *-network
description: Wireless interface
product: AR5001 Wireless Network Adapter
vendor: Atheros Communications Inc.
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The problem with my wireless network. I have Dell DV6 Pavilion 2115 eg laptop and i installed Ubuntu 11.4 and internet and wireless worked, until i reboted my system it has disapear. I cant no longer to connect to a wireless network. It dont shows me any wireless network. My wireless card is Atheros AR 9285 802.11b/g/n Wifi Adapter
View 9 Replies View RelatedI am having a little trouble connecting to my wireless network. Running Fedora 10 32 bit.I'm trying to connect to a hidden wireless network. I updated the firmware for my driver but apparantly the driver is still not working. Broadcom has a driver from their website for Linux 32 bit systems. Should I attempt to install it? I read a post where the driver is built into the system kernel. If so I would need to blacklist the one of the drivers. Correct?
[justin@justin ~]$ iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wmaster0 Interface doesn't support scanning.
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I have a Belkin Enhanced Wireless USB Network Adapter Model # F6D4050 v2. The drivers are for windows but the windows wireless drivers app doesnt work. I see a tutorial for a linksys that appears to have the same chipset, but I am not sure if any of the steps need to be modified, also my kernel is a bit different. Here is my kernel:
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I am a Windows refugee who discovered Ubuntu as a way to save my files from my virus-ravaged computer. Had no installation discs for Windows, so when I had to wipe my hard drive and start over, I decided to give Ubuntu a try. I've had mixed success, but that's another post...
Right now, the problem is that I installed 10.10 two weeks ago and was able to connect to the Internet with no problems - until yesterday. Suddenly, our wireless network (the only one in the vicinity) does not come up as available in Network Manager. In fact, the entire wireless option disappeared. I know there are many posts and threads on here about this, but weeding through them trying to find an answer is more frustrating than actually dealing with the problem. I know the router works because I can post on this forum from the Macbook. I really like Ubuntu and would like to keep using it, but not being able to connect to the Internet now on top of the other issues I've had is making me doubt I want to continue down this Linux road.
P.S. When I attempted an analysis through System Testing, it said something about there being no proprietary drivers?
my wireless home network is not recognized by my network card (RealTek RTL8190 mini PCI). The post was as follows: "I am using a new computer with Windows 7 , Athlon quad core 2.60 64 bit, 8GB RAM. Internet conection works fine with ethernet but ubuntu does not see my wireless network. card (RealTek RTL 8190 ID: 10ec:8190). Have searched this forum but unable to come up with a fix. I was looking for windows XP drivers to use Ndiswrapper but could not find a list of .inf files. My network is OK and works perfectly in windows and with my 2 laptops. Can anyone point me in the right direction? Additional info: install was done within Windows using WUBI to a separate partition on my HDD. I am new to this and thouroughly confused as to the procedure for installing the drivers if they are in fact available."
I am very frustrated in that I would like to use Ubuntu 10.04 but it is useless without internet connectability. I am new to linux and do not understand where to get the appropriate drivers or how to install them. I wish someone would answer this post and either give me a clue what to do or just say "give up" and uninstall ubunutu.
I want some advice for making my system more secure. I want deactivate any network connection that is unnecessary. Only my browser and the update ability of zypper should have access to the internet. On windows there are personal firewalls.
How can I block internetaccess for all other programmes on openSUSE?
When i click the button to connect to a wireless network this message apears:Network management disabled
View 1 Replies View RelatedI have just installed Ubuntu 10.10 64bit on my laptop Toshiba Satellite A665-S6065 and I can connect to wired network but I can not connect to wireless network "Network Connections disconnected". Im following this post http://ubuntuforums.org/showthread.php?p=6183681
1. Machine Brand and Model (PC/Laptop): Toshiba Satellite A665-S6065
2. Wireless Brand, Model and Wireless Chipset:
Code:
lspci
Output:
Code:
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
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I am running Ubuntu 9.04 as a partition with windows 7 on a acer aspire 5742, I would like to connect to the internet in Ubuntu, wirelessly, but I am unable to turn my wireless on in Ubuntu, and network manager says "no network connections available". I have the following network adapters:
Atheros AR5B97 Wireless Network Adapter
Broadcom NetLink (TM) Gigabit Ethernet
Microsoft Virtual WiFi Miniport Adapter
Just installed Ubuntu 10.1 on a notebook. Wired Internet works fine but can't find my home network. My other laptop works fine.
Here are some of the things I've tried:
Checked for device:
I just installed ubuntu 9.10 and completely reformated my dell laptop.fter that my computer was cleared and I can't use my built in wireless card. Now I have to just connect my laptop with a wire to access the internet. Is there any wireless network cards that I can buy, (like on amazon.com) that will allow me to go wireless
View 9 Replies View RelatedI only just installed Ubuntu 11.04 dual booted with Windows 7 which I have been using all this while. On Windows 7, I use a protected wireless network. I also have access to a wired network. Both the wireless and wired network work perfectly on 7.
During the installation of Ubuntu, it asked me to connect to a wireless network, which I could without issue.
However, once Ubuntu 11.04 completed installation, its no longer able to detect the wireless network! It's not even connecting to my wired network.