Linux Networking
in [Network]
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NIS questions: AIX server and Linux client Is it possible to have this NIS setup: - AIX as an NIS server (AIX 5.3) - Linux as a client (RHEL 4 sp4) Other question: - Is it possible to implement NIS if the UID differs from the server and the client ? In this scenario, is LDAP a better option ? With LDAP, is it mandatory to have UID identical in al... 27 Jan 2008 11:18
Help: How to Prevent Source Address Spoofing Hello, I use ADSL to link the Internet, so my ip address is not static, it's dynamic. However, I wanna use iptables to prevent source address spoofing which source address of packets is from my ip address. How to accomplish it? Thank you very much~ Regards, Amy Lee ... 1 Feb 2008 00:46
iptables with connlimit question I use connlimit with kernel 2.4 to limit the number of incoming connections to sendmail. /usr/sbin/iptables -A INPUT -p tcp -i eth0 --dport 25 -m connlimit ! --connlimit-above 3 -j ACCEPT - so this says no more then 3 connections from the same IP to port 25, works fine. /usr/sbin/iptables -A INPUT -p tcp -... 26 Jan 2008 23:21
iptables / Samba / internet connectivity Hi, I've got Samba working (eventually!), and tracked it down to my iptables configuration. I assume that iptables starts when linux boots up. In this state, I can't access my samba server from my Windows machines, but my windows machines can access the internet. However, when I run, [root(a)server~]service ... 26 Jan 2008 22:48
tcp window size of 1 Hi guys, I have a strange behavior on a Centos 5 machine. Whenever I connect from the internet to that machine using ssh I get a tcp window size of 1. But when I connect from the local network it is fine (it's around 30). The machine is behind a firewall using NAT to forward any traffic from www to the same networ... 1 Feb 2008 00:46
samba drive not accessible unless iptables is stopped iptables is disabled at my Fedora core 6 linux PC, which can be confirmed by these commands: # system-config-securitylevel # ps -ef|grep iptable root 3170 2926 0 10:15 pts/2 00:00:00 grep iptable However, my windows PC cannot access a linux drive through samba unless iptables is stopped on the linux PC. (or en... 25 Jan 2008 17:18
Help: Source Address Spoofing Hello, I have a question about how to prevent source address spoofing. I use ADSL to surf the Internet, so if I wanna prevent address spoofing which packets are likely from my IP address. My confusion is I use dynamic IP address. I don't know how to set up. Thank you very much~ Regards, Amy Lee ... 25 Jan 2008 15:03
Problem seeing correct originating IP in Ubuntu linux Hi all, I have my own linux Ubuntu 6.10 server running a variety of services. Since I last upgraded my kernel to version 2.6.17-12-generic, I have the strangest problem. A little background on my very simple network configuration: <LAN> | [10.0.0.1 - WRT54G running DD-WRT with DHCP and dnsmasq] - <inter... 28 Jan 2008 16:31
pktgen and VLAN frames Hello, Did anybody had success with sending VLAN packets using pktgen ? I had tried and could not find the way; there is a pgset "vlan_id ###" command which I tried, and I tried it with/without setting a VLAN interface (modprobe 8021q, vconfig add and vconfig add eth0 45 ifconfig eth0.45 up 192.168.0.59 netm... 24 Jan 2008 10:02
4 FXS port VoIP Gateways / ATA / Adapter 4 ports FXS ATA / Gateways / Adapter only $99.99 4 FXS ports VoIP Gateways, With 2 10M/100M Ethernet ports, Built-in Router function, Codec: G.711 u/a law, G.729, G.729 a/b, G.726 Fax Protocol: G.711 pass-through, T.38 Echo Cancel: G.168 (128ms) IP Assignment: Static IP, DHCP, PPPoE Voice Guarantee: VAD, CNG,... 24 Jan 2008 08:53 |