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Re: [CentOS] WEP and CentOS 4
by Bryan J. Smith <b.j.smith＠ieee.org> 11 Jun '05

11 Jun '05

From: Maciej ?enczykowski <maze(a)cela.pl> > Hey, > Don't bother with it, WEP can be broken (cracked) in 5 minutes > (with easily available and freely downloadable soft) and in my > experience all WEP really achieves is slows down the link (my > 2xIWE1100 bridge runs at 550kB/s without WEP and 100kB/s with WEP). The idea, as always, is to make yourself a smaller target than the next guy. As always, standard: - No SSID broadcast - No Open System access - MAC filtering - WEP - Always VPN Use WPA/802.1x if you've got it. -- Bryan J. Smith mailto:b.j.smith@ieee.org

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upgrade from fedora to centos?
by Ian mu 11 Jun '05

11 Jun '05

Hiya, just wondering how easy this would be, I'm guessing through yum, but is there a preferable process from updating from fed core 3 to centos ideally keeping settings as is? (desktop rather than server, just want to migrate to centos, nothing too essential apart from raw data). Ian

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memory leaking?? kernel problem?
by israel.garcia＠cimex.com.cu 11 Jun '05

11 Jun '05

List, I have the two servers CentOS 4.0 (running postfix, mailscanner) on this hardware: HP netserver 2000, PIII - 1GHz, 512 ram, two Hdd SCSI - 36 GB (RAID 1), I have monitored this server for a couple of months and I've seen that the memory used is increasing every week until it reaches all available memory and the server crashes.... at this point mailscanner crashes or sometimes the server gets freezed....my question is? Is this a memory leak? I 've always used this combination (mailscanner, postfix on Whitebox) and never got a problem, but when I upgrade my system to CentOS (kernel 2.6) this problem began.. can you help me? regards Israel

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Easiest way how to receive FAXes from an external modem?
by Petr Klíma 11 Jun '05

11 Jun '05

Hello Is in CentOS 4 an easy way how to receive FAXes from an external modem (COM2)? I need not send ... Sorry for souch stupid question, but I am rookie in linux/faxing and Google shows tons of options... I would like use na way which is clearest for CentOS 4 ... Petr Klíma

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[Fwd: Red Hat Enterprise Linux 4 Update 1 Availability Announcement]
by William Warren 11 Jun '05

11 Jun '05

It's official -------- Original Message -------- Subject: Red Hat Enterprise Linux 4 Update 1 Availability Announcement Red Hat is pleased to announce the availability of Update 1 for the Red Hat Enterprise Linux 4 family of products, including: - Red Hat Enterprise Linux AS (v. 4) for x86, AMD64/EM64T, Itanium, POWER, S/390 and zSeries - Red Hat Enterprise Linux ES (v. 4) for x86, AMD64/EM64T, Itanium - Red Hat Enterprise Linux WS (v. 4) for x86, AMD64/EM64T, Itanium - Red Hat Desktop (v. 4) for x86 and AMD64/EM64T This update includes the following enhancements: - Availability of a full set of updated installable CD ISO images via Red Hat Network, with OS package updates and install-time support for new hardware. - Availability of updated Extras ISO images via Red Hat Network, with third party package updates. - Dual core support for AMD64 Opteron and Intel EM64T ICH7 systems. - Support for ICH7, including Glenwood and Lakeport chipsets. - Improved disk dump capability (including SATA and megaraid support). - Updated Intel IA32 Execution Layer for the Itanium2 architecture. - Updated Intel Centrino ipw2100/ipw2200 wireless drivers and firmware. - Driver updates including ata_piix, bonding, e1000, e100, ibmveth, libata, lpfc, megaraid_mbox, megaraid_mm, sata_nv, sata_promise, sata_sil, sata_sis, sata_svw, sata_via, sata_vsc, and tg3 - Many platform hardware support updates and bug fixes. - Security updates, bug fixes, and feature enhancements to numerous system packages. Errata Advisories describing specific changes in Update 1 are available online at: https://rhn.redhat.com/errata/rhel4as-errata.html (AS) https://rhn.redhat.com/errata/rhel4es-errata.html (ES) https://rhn.redhat.com/errata/rhel4ws-errata.html (WS) https://rhn.redhat.com/errata/rh-desktop-4-errata.html (Desktop) Release notes for this update will be available on the Red Hat documentation site at: http://www.redhat.com/docs/manuals/enterprise/ This update is available immediately to all current Red Hat Enterprise Linux subscribers via Red Hat Network. Simply run 'up2date' to retrieve the latest packages, or visit the following URL to download ISO images for new installations: https://rhn.redhat.com/network/software/download_isos.pxt Regards, The Red Hat Enterprise Linux Team -- nahant-list mailing list nahant-list(a)redhat.com http://www.redhat.com/mailman/listinfo/nahant-list -- Computer House Calls, Networks, Security, Web Design: http://www.emmanuelcomputerconsulting.com What businesses are in Brunswick, Maryland? Check Brunswick First! http://www.checkbrunswickfirst.com My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD. -- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician) Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/

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yum repository for Mplayer and Codecs?
by Jeffrey B. Layton 11 Jun '05

11 Jun '05

Good morning, I've looked around a bit for a yum repository for Mplayer with all of the codecs. Does anyone know of a repository? (I admit I'm being a little lazy this morning :) ). Thanks! Jeff

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Screen blanking
by Chris Mason (Lists) 11 Jun '05

11 Jun '05

I have a couple of LCD monitors attached to Centos servers, I would like to be able to watch the logs on the monitors but after a while they go blank. How can I disable this? Chris Mason NetConcepts (264) 497-5670 Fax: (264) 497-8463 Int: (305) 704-7249 Fax: (815)301-9759 Cell: 264-235-5670 Yahoo IM: netconcepts_anguilla(a)yahoo.com

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re: [CentOS] memory leaking?? kernel problem?
by me＠prestoncrawford.com 10 Jun '05

10 Jun '05

I would think someone would have noticed this in RHEL or CentOS if it was a pure kernel problem. What all are you running in the way of daemons? Something there could be to blame, no? Also, if the servers are identical in terms of software and hardware, have you considered a memory check? When I made the switch from Windows to Linux I discovered something interesting. Since Linux caches memory (as you probably already know) sometimes you are more likely to find out memory is defective on Windows than Linux, especially if the defect is at the end of the RAM, if that makes sense. The first time I experienced this was with a computer that originally ran Windows. Since it never touched the full 768mb I never had a problem. I switched to Linux and it started crashing immediately. I blamed it on Linux, but then ran the memory test and found out that what was happening is that Windows never used enough memory to touch that spot of bad RAM. But Linux did, caching it all then crashing. Maybe a longshot, but just in case your hardware and software configurations are identical (because you did mention two machines) it might be worth considering. Preston -------- Original Message -------- > From: israel.garcia(a)cimex.com.cu > Sent: Friday, June 10, 2005 5:27 PM > To: centos(a)centos.org > Subject: [CentOS] memory leaking?? kernel problem? > > List, I have the two servers CentOS 4.0 (running postfix, mailscanner) on this hardware: HP netserver 2000, PIII - 1GHz, 512 ram, two Hdd SCSI - 36 GB (RAID 1), I have monitored this server for a couple of months and I've seen that the memory used is increasing every week until it reaches all available memory and the server crashes.... at this point mailscanner crashes or sometimes the server gets freezed....my question is? > > Is this a memory leak? > > I 've always used this combination (mailscanner, postfix on Whitebox) and never got a problem, but when I upgrade my system to CentOS (kernel 2.6) this problem began.. > > can you help me? > > regards > > Israel > > > > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos

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CentOS grub.conf
by Maciej Żenczykowski 10 Jun '05

10 Jun '05

Just updated my kernel via yum and # cat /etc/redhat-release CentOS release 4.0 (Final) Red Hat Enterprise Linux AS release 4 (Nahant) needed the second line to install HP drivers and left it there for any other packages which might need it. just generated the following in grub: title CentOS Red Hat Enterprise Linux AS (2.6.9-11.EL) Red Hat Enterprise Linux AS (2.6.9-11.ELsmp) root (hd0,2) kernel /vmlinuz-2.6.9-11.EL ro root=/dev/md0 initrd /initrd-2.6.9-11.EL.img title CentOS Red Hat Enterprise Linux AS (2.6.9-11.ELsmp) root (hd0,2) kernel /vmlinuz-2.6.9-11.ELsmp ro root=/dev/md0 initrd /initrd-2.6.9-11.ELsmp.img so they're obviously a ' sed "s/ release .*//" ' which should be replaced with sed "s/ release .*//" | head -n 1 i believe this is in /sbin/new-kernel-pkg in mkinitrd-4.1.18-2 on line 132: title="$(sed 's/ release.*$//' < /etc/redhat-release) ($version)" which IMHO should be: title="$(sed 's/ release.*$//' < /etc/redhat-release | head -n 1) ($version)" Cheers, MaZe.

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Re 2GB R3000z RAM problem booting.
by Anand Pandey 10 Jun '05

10 Jun '05

I upgraded to 2GB RAm on my laptop. Windows boots fine and memtest86 shows no error. However when I try to boot my the boot proces stops beyond the udev [ok] prompt. Suse 9.3 is working fine. Any ideas about what I need to do to fix this. Anand

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