Howto Red hat enterprise Linux 5 configure the network card

A. Red hat Linux provides following tools to make changes to Network configuration such as add new card, assign IP address, change DNS server etc.[a] GUI tool (X Windows required) - system-config-network [b] Command line text based GUI tool (No X Windows required) - system-config-network [c] Edit configuration files stored in /etc/sysconfig/network-scripts/ directory.Following instructions are compatible with (1) Cent OS Linux (2) Fedora Core Linux (3) Red Hat Enterprise Linux (RHEL) 3/4/5Note: If you are using Debian or Ubuntu Linux, please see this configuration howto.Method # 1: GUI tool system-config-networkType the following command at shell prompt (open x terminal): $ system-config-network &You will see Window...

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DHCP Server Configuration for Linux

Instructions Download dhcp rpm package from Red Hat and install: # rpm -ivh dhcp-2.0pl5-8.i386.rpm Open file /etc/sysconfig/dhcpd and edit the first line as follows: DHCPDARGS=eth1Replace 'eth1' above with the network interface that you want to use for dhcp; this should be an internal network interface; denial of service attacks are possible if dhcp is running on an external interface. Copy /usr/share/doc/dhcp-2.0pl5/dhcpd.conf.sample to /etc # cp /usr/share/doc/dhcp-2.0pl5/dhcpd.conf.sample /etc/dhcpd.confThis sample file is a good starting point for our /etc/dhcpd.conf file, which by default is not installed. Alternatively, copy the file from a working server. Edit /etc/dhcpd.conf to suit your needs. An example file...

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Red Hat 6 Installation Guide – RHEL 6 Install Screenshots

The Red Hat Enterprise Linux 6 Beta is available on the following architectures:i386 AMD64/Intel64 System z IBM Power (64-bit) Download Red Hat 6 Beta DVD images here. Some of the many improvements and new features that are included in Red Hat Enterprise Linux 6Power management – tickless kernel and improvements through the application stack to reduce wakeups, power consumption measurement by Powertop, Power Management (ASPM, ALPM), and adaptive system tuning by Tuned, all enhance more efficient system power usage. Next generation networking – comprehensive IPv6 support (NFS 4, CIFS, mobile support [RFC 3775], ISATAP support), FCoE, iSCSI, and a new and improved mac 802.11 wireless stack. Scalable filesystems – ext4 file system provides...

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Linux Command: To check the port speed on the ethernet card.

ethtool eth0 - Will check the port speed on the ethernet card. [root@admin.local ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: d Current message level: 0×00000007 (7) Link detected: ...

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Install Ubuntu server

These are step by step Ubuntu server v8.04 installation guide. Press Tab key on the keyboard to move the cursor between menus. Press Enter key to proceed. 1) Select language 2) Press F1 for help - Press Esc to exit help 3) Enter to the next step - You'll see menu below(without description): Install Ubuntu - proceed the installation. Check CD defect - Do this if you don't want the installation failed in the middle of the process. Rescue broken system - We don't have Ubuntu yet. Skip this. Test memory - This is going to take some times (I mean it). Boot from first hard disk - We don't have Ubuntu yet. Skip this. 4) Check CD defect if you haven't done it before. The system will reboot after finish the integrity test. You can test memory if you want. Press c for configuration menu. Press number...

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How to add user to a group in Linux operating system

We can assign user to a group during adding a new user account. But how do we add existing user to a group? This tutorial is a guide on how to add user to a new group. The right Linux command for the job is the usermod command. This is some information about Linux usermod command from manual page: NAME usermod - modify a user account SYNOPSIS usermod [options] LOGIN DESCRIPTION The usermod command modifies the system account files to reflect the changes that are specified on the command line. As you can see, the Linux usermod command can be used to modify a user account. However in this tutorial, we'll only use usermod command to add user to a new group. For this example, we'll create a new group to practice. Use the groupadd command to create a new group: luzar@ubuntu:~$ groupadd programmer groupadd:...

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Mount external hard drive in Ubuntu server

Insert external hard drive usb connector into the Ubuntu server usb port. Ubuntu server automatically detect the external hard drive as a usb device. Below is the example screenshot when ubuntu detected the external hard drive: We can see that the external hard drive has been detected as sdb. That is the name of the external hard drive to use when we are going to mount the device. We can check the device in /proc/scsi/scsi file. To do that, issue the command as in the example below: luzar@ubuntu:~$ cat /proc/scsi/scsi Attached devices: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: NECVMWar Model: VMware IDE CDR10 Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: VMware, Model: VMware Virtual S Rev: 1.0 Type: Direct-Access...

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Redhat linux commands

Here's a list of killer commands on a typical Linux installation. Keep in mind that there are some flavors of Linux that may not support the commands listed here. chfn Used to insert user information (also known as finger info) for a user account. chkconfig Display or change run level settings for all services listed in /etc/rc.d. chcon File security modifier to change file and directory CONTEXT permissions - NEW!. chmod File security modifier to change permissions. chown File security modifier to change owner. cron Scheduling Utility df Generates a report on the freespace for each partition. diff Compares and displays the DIFFerence between two files. Similar to the comp utility in Windows. dig DNS Name Resolution Utility find Helpful search tool grep Text filtering Utility. init Switched...

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free redhat 6 download

http://ftp.redhat.com/pub/redhat/rhel/beta/6.0/x86_64/i...

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