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RedHat7.2

RedHat 7.2 on an old Pentium 100 Mhz System

My first attempt started with my old Pentium 100 Mhz system not used recently,since I got RedHat 7.2 disks cheap. There was no problem installing RedHat 7.2.Linux started running. My desktop is using KDE.

This system I bought March '96 has the Intel Advanced/EV motherboard with 32 Mbytesof memory.

Index

Sound problem

The first problem was the fact that I cannot hear any sound. I had to manually configurethe sound options. It has the Creative Vibra 16S (CT2504) with Yamaha OPL3 FM synthesizer asthe sound chip on the motherboard (SoundBlaster 16 compativle). Here is what I did.

   
  /sbin/sndconfig   
  choose sb16 I/O 220, IRQ 5, DMA 1, DMA 5, MPU 330.

According to the Tech Product summary of Advanced/EV board, you can use the following parameters. I picked the default values above.


  Base Address  220H-233H (default) or  FM address 388H-38BH (fixed)  240H-253H or            
  Joystick   200H-207H (fixed)		       260H-273H or		       280H-293H         
  MPU-401       300H-301H or            
  8-bit DMA  DMA 1 (default) or	               330H-331H (default)                
  DMA 3		                               16-bit DMA 
  DMA 5 (default) or                                                          
  DMA 7         
  IRQ 2/9 or	               5 (default) or                       7 or                       10

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Network card problem

Next is the network card not recognized. The network card is a ISA 3COM EtherLink III combo card. This ISA card configuration must be done using the 3COM software in DOS mode to programCMOS on the card. The parameter I picked was : I/O 310H, IRQ 7 (printer is not attached).Next, what I did was the following:

    
  System->Network Configuration        
  (Prompted for root passwd.  Diaglog box opens.)        
  Hardware->Add       
  Hardware Type->Ethernet    
  I Picked 3COM EtherLink III, Device eth0, IRQ 7 (that is how I set the card).    
  Now you see the result in:     /etc/modules.conf    
  alias 3c509 eth0    options irq=7     
  I should have done at the same dialog the following, but I did not    
  Devices->Add    General:        Nickname: EtherIII	Checked Activate device when computer starts    
  Protocols:        TCP/IP    Hardware Device:        
  Checked Enable Device Alias support	Hardware device: eth0 (3COM EtherLink III) Alias 0    
  Instead, what I did was to add the follwing in /etc/rc.local.    
  /sbin/ifconfig eth0 192.168.0.5    
  /sbin/ifconfig add default gw 192.168.0.1    
  (At that time, Win2K was running the interconnection sharing and thus had     
  the address of 192.168.0.1.)    
  After rebooting, I tried /sbin/ifconfig and I see the eth0 with    
  the address of 192.168.0.5.    check /etc/sysconfig/networking directory.    
  /etc/sysconfig/networking/profiles/default/network has HOSTNAME=

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Cannot telnet problem

I wanted to use vnc so that I can use just one monitor to use two or morePCs. In order to do this, I have to start vncserver on the target system.Since Win2K does not have ssh, I had to use telnet to get intothe system and then start vncserver. However, Win2K telnet into the system was always rejected. The reason was due to the security setting on the Linux system.RedHat 7.2 runs ipchains. This is what I did.

    
  system->firewall-config    
  Add       src 192.168.0.5/16    dest 192.168.0.1/16       checked bidirectional    
  Next,       
  cd /etc/xinetd.d       
  edit telnet       
  change "disable=yes" to "disable=no"

By the way, in order for Win2K to accept telnet connection, you have to edit theregistry in the following way:

    
  /HKLM/Software/Microsoft/NTLM must be set to 1 (using user passwd).    
  The default is 2 which means only NT security is accepted (no Linux).

Another way is to use PuTTY,which can do not only telnet but ssh and it is free.

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