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Re: [CentOS] Recommendation On Ping And Alert Tool
by Brian T. Brunner 24 Sep '05

24 Sep '05

Are there recommendations for trimming quotes on this list? Brian Brunner brian.t.brunner(a)gai-tronics.com (610)796-5838 >>> wam(a)HiWAAY.net 09/23/05 08:07AM >>> Steven Vishoot wrote: >--- "William A. Mahaffey III" <wam(a)HiWAAY.net> wrote: > > > >>CentOS mailing list wrote: >> >> >> >>>Kennedy Clark wrote: >>> >>> >>> >>>>A bit off topic, but I keep looking for an answer >>>> >>>> >>to this question >> >> >>>>and coming up with nothing... so I thought I >>>> >>>> >>would go to the gurus. :-) >> >> >>>> >>>>Can anyone recommend a good package for pinging >>>> >>>> >>other devices and >> >> >>>>sending an email/alert when they go down? I'm >>>> >>>> >>aware of all kinds of >> >> >>>>more complex things with GUIs and a zillion other >>>> >>>> >>bells and whistles >> >> >>>>we aren't looking for, but we just want a simple >>>> >>>> >>tool (could be >> >> >>>>daemon or something run from cron) that runs >>>> >>>> >>every 1 - 5 minutes and >> >> >>>>alerts us when stuff disappears. Would need some >>>> >>>> >>basic logic like >> >> >>>>only sending one email/alert when something goes >>>> >>>> >>down (vs sending an >> >> >>>>email every 1-5 minutes until it comes back up). >>>> >>>> >>:-) We need to >> >> >>>>avoid a requirement for an X-windows GUI, but a >>>> >>>> >>web-GUI would >> >> >>>>probably be fine (a GUI-less command-line thing >>>> >>>> >>would probably be best). >> >> >>>Bash. Here is what I use for monitoring my website >>> >>>#!/bin/bash >>> >>>URL="http://www.911networks.com" >>>EMAIL="artsi(a)fartsi.com" >>> >>>lynx -dump "$URL" > /dev/null >>>if [ $? -ne 0 ]; then >>> echo "`date "+%F %T"` - $URL is down" | mail >>> >>> >>-s "$URL is down" $EMAIL >> >> >>>fi >>> >>>Watch for the wraps and make it executable [chmod >>> >>> >>7xx] >> >> >>> >>> >>This is the sort of thing I was going to suggest. >>You could go 1 better >>& have it resubmit itself periodically w/ at(1). >>Maybe get it to do some >>argument parsing so you could pass in the URL, >>EMAIL, then invoke plural >>instances for however many things you want to >>monitor .... >> >>-- >> William A. Mahaffey III >> >> >> >--------------------------------------------------------------------- > > >> Remember, ignorance is bliss, but >> willful ignorance is LIBERALISM !!!! >> >>_______________________________________________ >>CentOS mailing list >>CentOS(a)centos.org >>http://lists.centos.org/mailman/listinfo/centos >> >> >> > >My question is wouldnt this keep on sending emails all >the time ping keeps on seeing it is down. I thought >one of the requirements was once for each occurance? I >probably am reading this wrong... > >Steven > > >"On the side of the software box, in the 'System Requirements' section, it said 'Requires Windows or better'. So I installed Linux." >_______________________________________________ > > > It wouldn't have to. You would probably structure the script to E-mail if the device was down & then exit. It would re-submit itself if the device were up :-). -- William A. Mahaffey III --------------------------------------------------------------------- Remember, ignorance is bliss, but willful ignorance is LIBERALISM !!!! ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. www.hubbell.com - Hubbell Incorporated

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RE: [CentOS] Reading SNMP on other machine
by Todd Reed 23 Sep '05

23 Sep '05

It will respond from another machine (WinXP). What port should I open on the box trying to do the snmpwalk? --Todd -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Les Mikesell Sent: Friday, September 23, 2005 2:33 PM To: CentOS mailing list Subject: Re: [CentOS] Reading SNMP on other machine On Fri, 2005-09-23 at 09:15, Todd Reed wrote: > I'm trying to use snmpwalk to look at other machines, but I can't get > a response. It keeps timing out. It can see itself, though. I > haven't had this problem with other machines and I don't know what's > different. This sounds like firewalling, but the default snmpd.conf file is very restrictive. Make sure the one on the target machine allows it to respond. -- Les Mikesell lesmikesell(a)gmail.com _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Re: Re: [CentOS] Bryan Smith: Thanks for the IPCop recommendation
by Bill Maltby 23 Sep '05

23 Sep '05

> > >On Wed, 2005-09-21 at 18:39 -0400, Bill Maltby wrote: > > >>> A few weeks back I had tried to install CentOS on my old AMD 5x6x (equiv >>> to P75 performance) with plans to use it as my firewall and router. >>> Because there were some problems relating to RPM compile architecture >>> (apparently), I posted and Bryan suggested IPCop, even at peril to his >>> life on these lists ;-) >>> according to him. ;-) ;-) >>> >>> Just wanted to tell him thanks, it's worked out well. Had three old ISA >>> NICs (3Com combos BNC and TP), configured them for 3 different IRQs and >>> IOBEG addresses and have it working beautifully. Have 3 zones and a >>> recent download of several files sized *teen megabytes and larger gave >>> me throughput of 590-600 KB/sec off my cable modem. I am out in the >>> low-density boonies, but I still feel this is fairly impressive. >>> >>> They even have a boot diskette available to support those old BIOS that >>> won't boot CDs, as this unit was. >>> >>> So, thanks Bryan. >>> >>> I'm trying to configure a backup unit on an old Aptiva DX2/66. Have 1 >>> ISA Etherjet. Need a couple more ISA NICS that are configurable for >>> IRQ/IOBASE. Anyone that wants to put two old good ISA NICS into a home >>> where they will be cared for and appreciated, send me an email with >>> details, if config diskette available (even if off the net), price, etc. >>> I'll pay shipping too. Remove the underscores in the following address. >>> >>> w_ild-_bi_ll_(a)_tra_id._rr._c_o_m >> >> >---- ># 1 - Bryan asked to be prevented from posting > > That's a shame. Just finished going through the digests and saw it all. Too bad the he and his adversaries couldn't work things out. ># 2 - ipcop is a slam dunk for your hardware and what you are trying to >accomplish > > Yep. It was great. The only thing left to investigate is to see what it takes to get these NICs to do full duplex (do I want this?) to my switch (I think it's possible, have to do some reading). I configured them that way, but upon boot something in IPCop seems to set them to half duplex. ># 3 - your email address after removing the underscores doesn't match >the email address that you sent your email with. > > :O Dyslexic keyboard interface digits! "triad", not "traid" is correct result. Wasted effort anyway. I notice that the mail system puts it all at the top of the posts but for changing "@" to "at". Oh well ># 4 - you should have no problems picking them up new & used on ebay... >hint search 'ISA NIC' - you will find buy-it-now pricing for $ 4.99 and >probably can bid on some for less. > > Good idea. Thx. >Craig > Bill

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Reading SNMP on other machine
by Todd Reed 23 Sep '05

23 Sep '05

I'm trying to use snmpwalk to look at other machines, but I can't get a response. It keeps timing out. It can see itself, though. I haven't had this problem with other machines and I don't know what's different. Suggestions?

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About Centos on Alpha platform
by carlopmart＠gmail.com 23 Sep '05

23 Sep '05

Hi all, When CentOS for Alpha platform will be released??? Is it an abandoned project at this moment?? -- CL Martinez carlopmart {at} gmail {d0t} com

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CENTOS 3.5 (AMD64) NFS install issue
by Dr R L Oswald 23 Sep '05

23 Sep '05

We operate a cluster of Sun Xeon IA32 servers with Centos 3.5. Nodes are installed via a host-specific kickstart script which is generated for each node from a master template. Thus all kickstart scripts are clones of the master, edited for hostname, IP address etc only. The CENTOS 3.5 ISO images are exported from a server & that remote NFS mount is also configured in the master template. This works perfectly well & a fully automated installation requiring no operator intervention results. We recently added some new Opteron nodes to give us some 64-bit capability. These of course, use a slightly different master kickstart template as they mount up a different ISO directory from the NFS server, which contains the x86_64 version of Centos 3.5. When we install these 64-bit nodes, however, we get the message: "that directory could not be mounted from the server". On hitting OK we get the usual dialogue box which displays our chosen server IP and the correct x86_64 ISO directory, if we OK that, the NFS installation proceeds unattended as normal. I think we saw a similar thing with redHat 9 NFS kickstart installations but it was quite variable. Anyone seen that with CENTOS3 or RHEL3 & got any clues ? TIA Les

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DPMS or hardware
by Sam Drinkard 23 Sep '05

23 Sep '05

List, I've been bugged by the fact that the dpms function will not work on this machine, and perhaps now I have some clue as to why. Looking at the Xorg.0.log, I see where "Open APM failed (/dev/apm_bios) (No such file or directory)" which tells me perhaps this is the reason why it won't turn off the monitor. Also, this line prior to the other. `fonts.dir' not found (or not valid) in "/usr/X11R6/lib/X11/fonts/local/". That part I can maybe fix, but I have no clue what should be in the /dev/apm. The only thing that will happen is the monitor will go into screeensaver mode, or if no saver selected, it will do nothing, not even blank. What should the /dev/apm contain? Where does it pick up the info as to what should be in there, from a probe of the hardware? That said, does the fact that I'm using a custom video driver from ATI make any difference? -- Snowman

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Mirrordir with CentOS 4
by dan1 23 Sep '05

23 Sep '05

Hello everybody. I have been using Mirrordir for a long time and I wanted to know if some of you have been able to use it on a CentOS 4 system. When I try to mirror something, I receive the following error: [root@box scripts]# mirrordir ./test ./test2 Segmentation fault I have downloaded the RPM from here (version 0.10.41-1) : ftp://sunsite.unc.edu/pub/Linux/system/backup/ Is there any other RPM compatible with CentOS 4 ? Any help would be much appreciated. Thanks, Daniel

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Moving a Centos 3.5 instalation with software raid 1 array + LVM from a pIII to a pIV computer.
by Alexander Georgiev 23 Sep '05

23 Sep '05

Hi All, We have an old Centos 3.5 file and database server, running on a pIII computer with Intel 820 mother board. It has a software raid 1(mirror) + LVM on two IDE hard disk. I want to upgrade to a newer computer with pIV - 2.4GHz on a Intel D848PMB mother board. Should I expect any problems if I just move the array from the old machine to the new and boot there? Should I do any preparations(I know I must do a full backup), before moving the disks? Best regards! ageorgiev

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Recommendation On Ping And Alert Tool
by Kennedy Clark 23 Sep '05

23 Sep '05

A bit off topic, but I keep looking for an answer to this question and coming up with nothing... so I thought I would go to the gurus. :-) Can anyone recommend a good package for pinging other devices and sending an email/alert when they go down? I'm aware of all kinds of more complex things with GUIs and a zillion other bells and whistles we aren't looking for, but we just want a simple tool (could be daemon or something run from cron) that runs every 1 - 5 minutes and alerts us when stuff disappears. Would need some basic logic like only sending one email/alert when something goes down (vs sending an email every 1-5 minutes until it comes back up). :-) We need to avoid a requirement for an X-windows GUI, but a web-GUI would probably be fine (a GUI-less command-line thing would probably be best). TIA, KC

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