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Redhat

How to set the default gateway in Redhat Enterprise Linux

2008-04-30
By: admin
In: Redhat
Tagged: default-gateway, Redhat, rhel

The Default Gateway is the IP Address of a router or a routing device to which all the packet to a destination for which the server doesn't have a route will be forwarded to. Most of the servers in any network leave the routing job to the routers meaning there will be a default gateway added to the system and very little (if any) static routes added to it. This makes management much easier. This procedure should work on Redhat Enterprise Linux, Fedora, Centos. If you’re new here, you may want to subscribe to my RSS feed. Thanks for visiting!Read More →

How to add/modify IP Address in Redhat Enterprise Linux

2008-04-30
By: admin
In: Redhat
Tagged: Centos, ifconfig, Linux, netconfig, network, Redhat, rhel

Adding the IP Address in Redhat Enterprise Linux can be done by using the netconfig tool or by editing the network-scripts or by using the ifconfig command. While this procedure is tested on Redhat Enterprise Linux, I'm sure it should work on CentOS, Fedora and older Redhat versions.Read More →

How to set MTU size for a Network Interface in Redhat Enterprise Linux(RHEL)

2008-03-10
By: admin
In: Redhat
Tagged: Linux, Maximum-Transmission-Unit, mtu, packets, Redhat, rhel, tcpip

The Maximum Transmission Unit (MTU) can be set/modified in real time on Redhat Enterprise Linux or can be set force the value at boot time. The MTU in simple terms is the maximum size of a packet that can be sent on a Network Interface card. The default MTU size is 1500 bytes.Read More →

Dnsmasq – Opensource DNS Server Forwarder & DHCP Server

2007-12-17
By: admin
In: Debian, DHCP, DNS, OpenSource, Redhat, Ubuntu
Tagged: Debian, DHCP, DNS, dns-forwarder, dnsmasq, firewall, OpenSource, Redhat, routers, Ubuntu

Dnsmasq is an opensource light-weight,easy to configure and administer DNS and a DHCP Server. Dnsmasq is ideally suitable for smaller networks like Small Office and Home Office networks (SOHO) and branch office networks. Dnsmasq can be run on old PC and is very easy to configure and administer. Dnsmasq is seen to support upto 1000 nodes on a network.Read More →

How to Disable ICMP Redirects in Linux for security (Redhat,Debian,Ubuntu,SuSe tested)

2007-12-13
By: admin
In: Debian, Linux, Redhat, Security, Ubuntu
Tagged: Debian, ICMP-redirects, Linux, Redhat, Security, suse, Ubuntu

ICMP Redirects Send and Accept are by default enabled on most of the linux flavours including Debian, Ubuntu, Redhat Enterprise Linux, Suse Linux.Read More →

ClarkConnect – OpenSource Firewall Intrusion Prevention networking and collabration suite

2007-11-29
By: admin
In: Linux, Networking, Opensource Firewall, Redhat, Security
Tagged: antiphising, antispam, firewall, idp, intrusion-prevention, ipsec, Linux, multiwan, Opensource Firewall, proxy, Redhat, Security, snort, squid, vpn

ClarkConnect is an all-in-one Opensource networking suite from Point Clark Networks. It is a full blown security suite on one front with Stateful firewall protection, Intrusion Detection and prevention, Maile Gateway with Antivirus, Anti-spam and Anti-phishing support, proxy & web content filtering, peer to peer connection filtering for web protection while is also a networking suite with IPSec and PPTP support, bandwdith and system monitoring and a server with web-server, Database server support, file & print sharing, mail server, system and mail backup. All built on a cut down redhat linux with a good web interface.Read More →

HowTo: Add a Persistent Static Route in Redhat Enterprise Linux

2007-11-03
By: admin
In: Linux, Redhat
Tagged: gateway, Linux, netmask, Redhat, rhel, route

If you know there is always going to be a permanent route for a destination then a static route can be a viable option.To add a persistent static route in Redhat Enterprise Linux create a file called route-<int>X in the /etc/sysconfig/network-scripts/ directoryRead More →



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