Networking :: Centos 5.2 Firewall / AccessPoint Using Atheros AR5212?
Jan 22, 2009
I've got a home firewall setup running CentOs 5.2. It's got two wired interfaces: inside and out and I'm successfully using iptables to filter and nat traffic in and out as expected. Recently I've added an AirLink101 AWLH4030 wireless nic that is recognized as the AR5212/AR5213 chipset. It appears that I have everything configured properly and I've eradicated every error encountered so far. Currently, I have my ath0 interface up and essid set but am unable to connect or even see the AP from my laptop. Here is a metric shit ton of debug/output for any networking gurus to ponder over:
Ethernet Devices:
Code:
alias lsEth='lspci -v | grep "Ethernet" -A 7'
Code:
lsEth
01:09.0 Ethernet controller: VIA Technologies, Inc. VT6105 [Rhine-III] (rev 86)
Subsystem: D-Link System Inc Unknown device 1406
Flags: bus master, stepping, medium devsel, latency 64, IRQ 209
I just installed CentOS and I am trying to configure the network card on the IBM Thinkpad laptop. According to this doc about wireless setup (http://wiki.centos.org/HowTos/Laptops/Wireless), I tried to load the ath5k module but I get "ath5k not found". Maybe I'm doing something wrong?
# modprobe ath5k FATAL: Module ath5k not found # uname -rmi
from time to time, wireless connection gets very slow, and i have to make it reconnect, and some times, restart fedora. The wireless card has an Atheros AR5212 802.11abg NIC (rev 01). This happens mostly when i use Tucan Downloader, or Torrent, meaning, heavy internet use.
I am using asus p5ld2-x/1333 motherboard,I installed the centos ,Centos saw other drivers but didn't see ethernet card.I am not connection the internet.
I have setup hostapd and a bridged setup with br0 bridging eth0 and wlan0. The setup works but unfortunately not on bootup. The reason is that the bridge can't add iface wlan0 because it is down for some reason at this time. When hostapd is running (after the network script) the interface is up and can be added to bridge via
I recently purchased an MSI 740GM-P25 with an Atheros AR8131M gigabit ethernet adapter onboard. I have since discovered that it's not the easiest device to get working in CentOS (or any other distro I've tried, frankly). Anybody use this card and have instructions on how to get it working? I've got a lot of experience with Linux, but I've never been quite as good with hardware stuff as I probably should be. I've included a list of things I've already attempted below (limited as the list may be).
1) Tried both CentOS 5.5 x86_64 and Fedora 13 x86_64
2) Tried to download and compile the source code for three different Atheros drivers from their website (the Linux drivers listed here) in Fedora 13. All stated that I was using a kernel version that was unsupported (>2.4.0) when attempting to compile.
EDIT: Also, I contacted MSI directly for assistance.I got the simple yet incredibly unhelpful "we can't help you unless you use Windows" response. So there is no official support (and therefore no driver) provided by the manufacturer.
installing my wireless card Atheros AR9285.I have tried to get it working with both compat wireless - Ath9k driver but I dont know exactly how to do.I have also tried to get it to work with ndiswrapper, but it is really tricky because nothing is available in centos like precompiled ndiswrapper.I used to work with Arch Linux so everything in Centos is totally new to me and I don�t understand a thing:I need to get it to work as soon as possible.What I have read the should go to just "activate" the ath9k driver with my card and it would work,
I have CentOS 5.5 and I can't install the driver for the Atheros AR5006X Wireless.The current state of my CentOS is:
*) If I run lspci, I get 03:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01) (wrong model) *) If I go to System->Administration->Network, I see the wlan0 device with xlan0 name, but if I tried to active I get: (and the same when the system is rebooting)
Error for wireless request "Set Mode" (8B06):SET failed on device wlan0 ; Invalid argument. Determining IP information for wlan0...
Am having intermittent connectivity issues with my stock Atheros AR5212 on my Thinkpad X61 using Ubuntu 10.04. Am wondering if there is a known to be good b/g min-PCIe card that I can replace my AR5212 with that would be more solid in Ubuntu?
I'm trying to find a driver for my wireless card (Atheros AR928X) and I think it's ath9k what I need. As far as I know there isn't a linux driver for it, so I installed ndiswrapper to use a windows driver instead. The problem is that when I type modprobe ndiswrapper I get "bash: modprobe: command not found" (even as root). I know I'm missing something about modprobe, but I can't find any help on google. Anyway, I installed ndisgtk next, because I thought it would be easier, but when I go to System> Administration> Windows Wireless Drivers I get a message "Unknown error".Do you have any ideas on how I'll make ndiswrapper work?
I am unable to find Atheros AR8132 PCI-E Ethernet Controller driver for CentOS which is installed on my netbook.
I contacted DELL to provide me the driver and they said that they do not support Linux on netbook and I have to arrange it myself.
I told them that I don't need help in installing I just need the driver file to which they said that they don't have driver for Linux.
NIC is getting detected and works fine on the same netbook (Am dual booting Windows7/CentOS) with Windows7
When I type: ls -l /dev/ it does not show up eth0. Same result with ifconfig. When I type lspci | grep net it does show up something like Atheros Communications AR8132 L1 PCI Gigabit .
I have installed CentOS. I have two ethernet card (one onboard and one PCI). I am able to set ip for realtek ethernet card and my atheros(on board) is not shown in network ifconfig shows only one ethernet card (PCI) hen i gave the command lspci i got the following output
The Network card sees the Wireless network, but will not connect to the router. I have tried with and without security, and neither setting makes any difference. Using the Wired Network adapter does work when set to a STATIC IP.
CentOS 5 iptables 1.4.1.1 APF 9.7 Webmin 1.4.80 (yes i can be a gui noob at times)
I'm currently running a dedicated server that hosts a couple of sites and runs a game server or two. I was using iptables on its own for a while, but recently I'm a target of all sorts of attacks (typically aimed directly at the gameserver on port 7777. UDP flood attacks, etc). I'm also seeing an spike in foreign spam, SSH brutes, and a few people in Turkey thought it would be cute to download files over and over and over I have decided to start banning entire countries, using the subnets listed here [URL]... I'm trying to block Central and South america (189,190,200,201.x.x.x), China, Ukraine, Turkey, Iran, Spain and Italy. I do this because a majority of the traffic from those areas are usually up to no good.
I installed APF so I could easily add these ranges in deny_hosts.rules and be done with it. I added the ranges, which turned out to be too many, and the system tanked. I decreased the amount of ranges to just 4:
189.0.0.0/8 190.0.0.0/8 200.0.0.0/8 201.0.0.0/8
Restarted APF and it loaded fine. Do an apf --list and iptables --list and it shows those 4 ranges as blocked. The only issue...I have people from 190.x and 200.x connecting to the gameserver and PLAYING. Its as if the firewall isnt there. Also, adding those ranges to /etc/hosts.deny (or whatever) doesn't block them either.
I add one of my own ips and I get blocked instantly. WTF?? I look in the iptables for webmin, and it shows an empty firewall. I do iptables --list and it shows the ranges I added in APF. I'm looking at building (or whatever its called) an fresh iptables with the geoip module added in. [URL]...
I've never done anything like this, and I don't want to kill the box. I also don't want to spend the effort if 1) something is wrong with my system to begin with and 2) the geoip module doesn't work. geoip module aside....how exactly should i configure the firewall? Empty iptables completely and then rely on APF for everything? Oh and heres another tidbit: I tried this before 2 years ago and it used to be that anything I put in APF would show when i looked at iptables using the webmin module. Thats no longer the case now. That was also on CentOS 4 when it did that. I don't know if moving to 5 is whats preventing it now.
In a nutshell, I'm new at this and I'm being inundated with terrible people trying to do terrible things and I'm ready to just give up. Can someone just give me a quick rundown on:
1) how to test that my firewall is actually firewalling
2) how I should configure the/a firewall on this CentOS5. Not too specific, I just want to know if I should empty iptables then load apf, should i not bother with APF (i like it when it works), is there a specific order of doing things?
I'm stuck at server with OpenNA installed, which has no relation with CentOS but If anyone knows GIPTABLES firewall to point me somewhere I can get configuring.I need to open 2 custom ports but I just can't get it to work.
I have centos with software firewall enable , but i want to set up hardware firewall can anybody guide how to install and configure hardware firewall in centos
I am running a centOS 5.5 server and can't synchronize with time servers via ntpd. My server sits behind a firewall with only port 80 open and I suspect this is the issue. Do I need to open other ports to connect to the time servers at [URL]?
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
I have installed CentOS 5.3 on my PC which has an Atheros AR8121/8113/8114 Gigabit Ethernet. Unfortunately 5.3 has no drivers for this LAN Card. I searched the Google for drivers but was unable to find any. Does the 5.4 has them? If yes then how can i upgrade it to 5.4 without Network connectivity?
i have a centos 5 and i cant access to the LAN or Internet because , i cant create a network connection , i try to say My Ethernet dont appears,and i cant add any connections.i id thisTerminal:Quote:sudo iwconfig
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 )
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'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 ?
I'm replacing a USB adapter with a PCI DLink card that is an Atheros chipset. I installed 'madwifi' for the modules and can set the ESSID and WEP key manually using iwconfig and can get a DHCP Address using dhclient.
What I want to do now is bind this to the static IP that the USB device used to have, but I am not sure how to do this since Atheros chipsets show up as both wifi0 and ath0, with ath0 being the one that needs to have the connection info. I tried setting up a ifcfg-ath0 with the static IP information and the key-ath0 file with the key like I have for the USB device (which shows up as wlan0) but at booth ath0 isn't up and running, even with ONBOOT=yes. What do I need to do to get an Atheros chipset to boot with a static IP?
I need to set up my centOS computer as a firewall in my home network. Ive got 2 interfaces, eth0 and eth1. I want to allow and forward all traffic on eth0 and block all traffic on eth1 except ssh, ping(icmp) and DNS. How do I do this? Ive tried some editing in /etc/sysconfig/iptables but no luck.
Just installed CentOS 5.1 and it's not detecting my NIC. ifconfig produces nothing for eth0. This is a xen kernel.
I can't tell exactly what NIC this motherboard uses, the ASUS website doesn't seem to think we need to know anything more than that it's a PCIe Gigabit lan:
[URL]
lspci indicates it's an Atheros AR8121/AR8113/AR8114.
My HP laptop has a wireless network device, Atheros AR5007 802.11 b/g Wifi adaptor. I was previously running Vista on this machine, and today loaded CentOS 5.5. In system-config-network, this device shows up properly in Hardware and in Devices. Hardware device shows the right mac address. In General, I set Activate device when computer starts, Automatically obtain IP address setting with dhcp, and Automatically obtain DNS information from provider. I've left the DNS and Hosts page blank.When I try to Activate the device, I get
"Error for wireless request "Set Mode" (8B06): SET failed on device wlan0; Invalid argument Determining IP information for wlan... failed."
I have tried nfs restart, to no avail. (When I do this restart, I get the usual OK on seven of the messages but Shutting Down NFS services " shows FAILED.) I know the wireless router is working because I am connecting to it from another machine.
I have onboard Atheros Communications L2 100 Mbit Ethernet Adapter, and I am not able to install the drivers of it. Following is the output of command lspci -v 01:00.0 Ethernet controller: Atheros Communications L2 100 Mbit Ethernet Adapter (rev a0)
Subsystem: Elitegroup Computer Systems Unknown device 2048 Flags: bus master, fast devsel, latency 0, IRQ 10 Memory at feac0000 (64-bit, non-prefetchable) [size=256K] Expansion ROM at feaa0000 [disabled] [size=128K] Capabilities: [40] Power Management version 2
