Question about Red Hat Enterprise Linux ES 3 Standard Edition

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Antiviurs Software for Linux server

We are using Redhat linux server edition. it is directly connected to the Internet. Now it is working very slowly. we suspect that maybe problem with virus.Is there any tool for antivirus tool for linux.

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There is a Redhat linux version of ClamWin antivirus available at:
http://www.clamav.net/download/packages/packages-linux

Posted on Dec 26, 2008

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Posted on Jan 02, 2017

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How to connect to internet in redhat enterprise linux manually


1) Open a command prompt (or terminal, under System Tools)
2) Verify your system default route (route -n)
a) Does route 0.0.0.0/0 exist?
1) Does it have a gateway IP address similar to that of your cable company? If so, try 'ping 8.8.8.8'
2) Is the gateway IP address similar to 192.168.x.x? If so, you have a local router. Verify that you can 'ping 8.8.8.8'. If not, try to ping your router IP address.
3) If still unsuccessful, verify your IP address.

Jun 17, 2012 | Red Hat Enterprise Linux ES Basic Edition

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How to Setup Linux Mail Server


<p><span>Email is an important part of any Web site that you create. In a home environment, a free web based email service may be sufficient, but if you are running a business, then a dedicated mail server will be required. <span>A mail server is an application that receives incoming e-mail from local users (people within the same</span><span> </span><span><span>domain)</span> and remote senders and forwards outgoing e-mail for delivery, as example Microsoft</span><span> </span><span><span>Exchange</span>, Gmail,</span><span> </span><span><span>etc.</span></span></span><span> <span> </span></span><span><span>The system uses</span></span><span><span> </span></span><span><span>SMTP </span></span><span><span>(Simple Mail Transfer Protocol) or <span>ESMTP </span>(extended SMTP) for sending e-mail, and either</span></span><span><span> </span></span><span><span>POP3</span></span><span><span> </span></span><span><span>(Post Office Protocol 3) or <span>IMAP</span></span></span><span><span> </span></span><span><span>(Internet Message Access Protocol) for receiving e-mail</span></span><span><span>. </span></span><span><span>In windows forum</span></span><span><span> most of workstations are use Microsoft Exchange server or outlook express. In Linux forum there have also an easiest option to send and receive mail. In Linux configuration of mail server is easy flexible too.</span></span><span></SPAN><br> <p><span><span> </SPAN>In most of Linux workstation RedHat Linux are used for their Server. In RedHat Linux we use sendmail to create a mail server that will relay your mail to a remote user's mailbox or incoming mail to a local mail box. On our RedHat we will find sendmail's configuration file as /etc/sendmail.cf. If you download and compile sendmail you would find it in /etc/mail/sendmail.cf. To configure sendmail you have basically 2 options. Either you edit the sendmail.cf file directly or you create the sendmail.cf from an m4 file such as sendmail.mc. Here to explain the process I will list the steps to produce a custom sendmail.mc file.</SPAN><br> <p><span></SPAN> <br> <p><span><span><b>SendMail Configuration:</b></SPAN></SPAN><span> </SPAN><span><span> </SPAN>In Redhat Linux dovecot and sendmail packages are used as service demon for Mail server. At first I install the available sendmail RPM package by YUM and also the dovecot RPM. After installation first I have edit the sendmail .mc file. After installation of sendmail package it locates as sendmail.mc in /etc/mail. In the sendmail.mc file I have find the line DAEMON_OPTION and edit it with # before the line to uncheck it. Then I find Local Domain and edit it also with the system FQDN. After editing save the sendmail.mc file. After exiting from sendmail.mc I moved this .mc file to sendmail.cf with m4. Here the SendMail configuration is complete. Then I go to the /etc/dovecot.conf file and edit it. I just find the protocol line and uncheck this line. After that I save this .conf file. After all configurations I have start the service demons with chkconfig command and restart the both services. And the mail server was going on swiftly.</SPAN><br> <p><span><span> </SPAN>So it is very easiest job to configure a mail server in RedHat Linux enterprise server.</SPAN>

on Mar 21, 2011 | Computers & Internet

Tip

Set up a home office LAN which access internet through USB wireless gadget


The following networking job I have done in this Lab. It is enough for a small office to access or transfer file Printing and access of shared Internet in different type of operating system.

We have recently set up a home office (small laboratory) LAN. All the computers access the internet through a USB wireless (CMDA) dongle. The USB stick is Huawei EC168C and internet service provider is Reliance Infocom (India). But any USB internet dongle can be use to share internet in a LAN in the following way. And you don't need a router for that. In the areas where ISP cannot give wire line internet connection this type of USB wireless sticks are really helpful for home office.


Basic LAN Connection:

Here this lab has 4 PCs. One Windows XP, another Windows Vista starter and two RedHat Linux server systems. Here in this lab I have done the basic LAN connection using cat5 cable & RJ45 connector and an 8 port hub. I have connect the two windows based OS. Using cross cable I have connected two windows system with the hub. Then I put static IP address in Ipv4 of TCP/IP. After that I set workgroup name to join in a workgroup in windows PCs. Then I tried to ping the systems, and it was pinging. Then I have setup a home or small office network in both windows system. That I have enabled the Printer sharing. After that I can share file, data and printer through the system gateway.

Now I have to connect other two Linux PCs in this network. With same cross cable I have joined the both Linux system with the hub. Then to detect the Ethernet device I have put down "DEVICE=eth0" entry in /etc/sysconfig/network-scripts/ifcfg-eth0 file. Then I set IP address in Ethernet device in network configuration in graphical mode (or System-config-network in text mode).After doing this job I restart the network service with "service network restart" command. Then I am trying to ping the systems to one another, And It was pinging.

Now Linux system can access with each other and files also shared through SSH, Telnet,FTP using process and command.

Linux Configuration:

I have configured the Linux system in the following way. First I have set the host name in /etc/sysconfig/network file by VI editor. Next I have edit /etc/sysconfig/network-scripts/ifcfg-eth0 file with "Device=eth0" to detect the Ethernet device. After that I have put the IP add in network configuration file and Restart the network service. To keep the eth0 on permanently I also use the chkconfig command.

After doing this job File sharing can be possible through network file sharing (Nfs). I have install Nfs package & shared the nfs dir by editing exports file. Then I am trying to automount the NFS dir by automounting process. So that I put automounting entry of nfs file in fstab file. After that it's automounted in other system's mount location.

Windows & Linux Networking:

Through basic LAN both OS can only ping each other. To share file or data samba server (a client server in Linux) must be configured in Linux system. So I Install smb rpm package from yum repository. Then I have Configure the samba/smb.conf file. I put the Workgroup name on Workgroup column of samba/smb.conf file. Then I Set the network IP without host to route in network in Host allow column. At last I put down all details of Samba dir, users at the end of the configuration file set the samba password. After that I restart the samba demon to up the samba server. Now files can shared through samba server. In windows I Set the workgroup name pairs with samba server and also set username and password same as samba server. Now I trying to send or access file through samba in both OS and it happened.

USB Net Connect:

Here in this lab workers are use internet from an Usb net connect. So it must be shared in Network. It is too fast so shared internet can be access easily. In Windows XP system I connect the USB netconnect & share it in network. IF all the network setting is ok then all the systems can access shared internet through gateway. Here all users use this shared internet now.

Access of Another System:
VNC Server & Viewer is software through which we can access of another system easily. I just install the software & set the password. Then I run the vnc server. After that I Put the IP add of vncserver from vncviewer of another system and type the password & start access the vnc server system. It can be access form WAN also. I just Run the Vnc server and connect the internet and I got a Wan IP add provided by ISP.

on Jan 12, 2011 | Network Computing Devices (NSH800S/A)...

1 Answer

We brought sharp ar-5316 oneyear back.Now servers and desktop has migrate to redhat linux.so i need printer driver for redhat linux.


How was your day, hope fine. Sharp Ar5316 driver are for windows. This means that the printer drivers are only compatible with windows and not with linux. My advice to you is that please uninstall Linux system from your desktop and servers and install windowsxp instead and your copier will work. Remember to save important files while doing this as they may be lost in the process. Let me know your progress.

Nov 26, 2010 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Linux 5 is not detecting my broadband modem


The connecting to internet is very easy in linux .

There are many steps but i am saying simple one

Initially configure the adsl router with ppoe over ethernet and enable dhcp address option.

Next plug the ethernet cable from router to the inteface of lan card.

Boot the redhat machine.

In the system-->Administration-->network options check whether lan card is detected and active .

If the lan card is not active activate and save

In lan card select option assign assig ip automatically

check whether ip is assigned by using command ifconfig .

Mar 11, 2010 | Red Hat Enterprise Linux ES Basic Edition

1 Answer

Unable to connect to the internet in Redhat Enterprise Linux 5


Get the drivers for your WiFi card for the correct edition of your RedHat. Wireless card may be incompatable with red hat.

Apr 11, 2009 | Red Hat Enterprise Linux ES Basic Edition

1 Answer

Linux operating system show me the low bandwidth


This sounds like your Net cards are limiting your Band or that in your linux boxes you have set a bandwidth limit somewhere.

-Rel

May 30, 2008 | Computers & Internet

2 Answers

Redhat es5


This model was found not to be 64bit but 32bit.

May 18, 2008 | HP Compaq ProLiant DL380 G4 Server

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