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Recent content by Johnthom

  1. Johnthom

    Set quota for mail user in Sendmail/POP3 ?

    Hi there, I have just installed a Linux mail server with Sendmail/POP3 programes, but I don't know how to set quota for my mail users then. And I wonder this setting is the same as quota setting for "normal" Linux users ? Is there anyone knowing this issue, please give me an...
  2. Johnthom

    Daemons and modules ?

    Hi everyone, By setting up many services in my system, I found out there are different kinds of server operating. For example, telnet, ftp, dns ... work in form of daemons, and some services work in form of modules like Iptable, pchains... So I wonder what is the differnce between two these...
  3. Johnthom

    Make user account under Samba

    Hi all, I have just installed Samba program in my computer, and I share a directory for everyone to use it, but then I 'd like set up a little more secure. It means only people having Linux accounts can use this shared directory. I tried a lot of ways but cannot do that. The following is my...
  4. Johnthom

    Radius server software ?

    Hi all, I am trying to setup my Linux box operating as Radius server , but I don't know what software I should use. Please tell me some best softwares ( with good documents and easy to setup ... ) and where I can download trial version. Any help would be appreciated. John Thom
  5. Johnthom

    Change NICs under Linux ?

    Thanks Ifincham very much.
  6. Johnthom

    Change NICs under Linux ?

    Hi all, My Linux box is running with Link Pro NIC, and it's a litle old and works not very well, so I'd like to replace this NIC with a new 3Com 905 10/100 M card. Until now, I don't know how to do that. I have a lot of questions as follows: - How to remove NIC driver files for Link PRo card...
  7. Johnthom

    How to verify Network card is running well ???

    Thanks very much. But could you tell me some ways on Win 2K Server to verify network card to be running well ?
  8. Johnthom

    How to verify Network card is running well ???

    Hi all, I have just installed a plug-and -play network card into my Win 2K advance server PC, my PC automatically detected this card successfully. I suppose this card is running well because when I click -> Computer Management -> Device Manager -> Network Adapter -> and it appears : 3Com...
  9. Johnthom

    Deal with Cisco router without IOS !!!

    Hi all, Yesterday, I tried to upgrade new version IOS for my router, but while I was loading IOS, the power supply was cut, and everything went to stop. Until now I have managed all ways but cannot boot my router at all. Please tell me step by step to load IOS to my router again and make it...
  10. Johnthom

    Help me ! Deal with a Mail server down !!!

    Hi all, I am working for a small ISP. My network has many leased line customers running mail servers with their respective domain and we manage these domain. This morning, leased line cable to a customer broke, so this customer's mail server cannot run. This customer require me to do two things...
  11. Johnthom

    Configuring monitor port mode for a Switch ???

    Hi all, I have been told that we can set a switch's port into "monitor port" so that we can use this port to listen all data packets passing through the switch. But until now, I have no idea to configure my switch for this function. Please tell me what commands I have to use to...
  12. Johnthom

    Network Tool for admin ???

    Thanks very much. And anyone else has other interesting tools ?
  13. Johnthom

    Network Tool for admin ???

    Hi all, I am a new administrator for Winodws network, so I care much about security in my network. Until now I don't have any network tools for windows 9x/NT/2K that are used to monitor / sniffing trafic passing in a HUB ( like Tcpdump running under unix ) , monitor traffic in a SWITCH (...
  14. Johnthom

    maximum speed of One-Port Serial WAN Interface Card, WIC-1TWIC-1T

    Thanks very much. But I'm afraid that I only agree with Karl'answer. Could Jeter consider this issue again ? John Thom.
  15. Johnthom

    maximum speed of One-Port Serial WAN Interface Card, WIC-1TWIC-1T

    Hi all, My Cisco 3600 series router has a WAN network module in kind of One-Port Serial WAN Interface Card, WIC-1T. And I don't know what does word "T" stands for ? in addition, what is the maximum speed of this serial port can support ? Thanks in advance for any help. John Thom
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