Best of Technical Support
I want to convert my existing proxy server for my home network to Linux. But every distribution I have used has never detected both network cards until SuSE 6.3. I can manually get the card on the LAN to find the DHCP server, and the NT gives it an IP address, but can never ping that server; if I change it to a static IP address, it pings the NT server fine. The real problem is I have a cable modem on the other NIC, on which I have set up DHCPclient. I have viewed and edited the sbin/init.d/dhclient file to make sure it has the ifconfig $NETDEV 0.0.0.0 up statement in it. I have read the FAQ and I still cannot get this to work. —Stephen Heaton, firstname.lastname@example.org
All recent distributions work more or less the same in regard to more than one Ethernet card if they are PCI, as they can all be autodetected easily. You may, however, need to add an alias for eth1 in /etc/conf.modules. For example, your conf.modules could look like this:
alias eth0 tulip alias eth1 eepro100
After that, you simply need to ifconfig each card in the usual fashion.
Are you sure that Linux does receive a correct IP, netmask and broadcast from the DHCP server? You should type ifconfig eth0 (or eth1) and compare the info you're getting from DHCP with the info you're setting by hand.
The last part, I'm not too sure about. I myself haven't had much luck with SuSE's DHCP client, while Red Hat's dhcp client has worked better for me with no special configuration required. —Marc Merlin, email@example.com
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide