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34752 discussions

update a wbel4 to centos4
by Brad Olin 31 Oct '05

31 Oct '05

Hi all, Does anybody have experience with updating a wbel4 box to centos4? I assume I can follow the basic faq19 instructions, but that's an assumption. Thanks in advance Brad

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blocking outgoing ports with iptables
by Ajay Sharma 30 Oct '05

30 Oct '05

Hi, I'm using the generic system-config-securitylevel-tui program on a remote server to configure my firewall. So far it's been fairly decent, allowing me to open up ports and whatnot. But I want to start blocking a couple of outgoing ports on my machine. I want to lock it down so the only traffic going in our out of my machine is stuff that I specify. Is there a way to do this with the system-config-securitylevel program? If not, what do you recommend I use to configure the firewall? thanks, ajay

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Broken up2date & install from CD ?
by Sam Drinkard 30 Oct '05

30 Oct '05

I've run into some problems I can't explain. I tried to install the mysql package from the 4.1 CD's and the installer just sat there telling me to insert the CD into the drive and click OK. I did that, and it just blinked once, then returned to the same thing.. hit the OK button, etc., etc., again and again. Wound up having to yum install the mysql package which went OK afik. Now, trying to run up2date for the latest updates, and its hung on fetching the obsoletes list for channel centos4-addons. Will not go any further. I had to remove DAG from the repos, as every time I tried to fetch something, it bombed out, so don't know if its my problem or somewhere else. Hints?? Sam -- Snowman

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AIC7901 RAID320 with CENTOS4 not recognized
by Erick Perez 30 Oct '05

30 Oct '05

An INTEL Server motherboard model SE7501BR2 with an onboard Adaptec AIC7901 controller (with HostRAID) is not being recognized by CENTOS 4. The AIC79xx driver loads correctly, however it does not "see" the fact that I used the HostRAID onboard software to create a RAID 1 set. I went to the INTEL site and only found a driver for RHEL 3.0 and I was unable to find a driver on the adaptec site. The CENTOS4 installer gives me the option to create partitions, raids, etc. This is not what we want since creating a RAID by software it's supposed to be more slow that doing it hardware based right? Does the CENTOS4 support the AIC7901 with HostRAID or not? Thanks for your comments and suggestions. -- ------------------------------------------- Erick Perez Linux User 376588 http://counter.li.org/ (Get counted!!!) Panama, Republic of Panama

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mediawiki on centos-4
by Anne Possoz 30 Oct '05

30 Oct '05

I have centos-4 updated to 4.2. Looking for mediawiki with yum, I find it on Dag repository yum --enable dag list mediawiki* Available Packages mediawiki.i386 1.4.7-1.2.el4.rf dag But the installation fails with Error: Missing Dependency: php >= 4.3.11 is needed by package mediawiki Where could I find a yum repository with php-4.3.11 for centos-4? I fell I miss a point. Anne

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CentOS proviiding additional services > was Setting up Tomcat
by Collins Richey 30 Oct '05

30 Oct '05

This thread (... Tomcat ...) emphasizes the essential conundrom of CentOS whose mission is to provide a community-based, well-maintained and freely distributable version of the stable enterprise software from the Well Known North American VENDOR (WKNAV). There is a essential gap betweenthe community (I want lots of current packages) and the WKNAV base (you get what I choose to provide). As CentOS becomes more popular and reaches more desktop and server users, the gap becomes more evident. And there is also the ever present clamor for software that is not freely distributable due to licensing considerations. What I would recommend to assist those who love the CentOS stable base but want more than CentOS can (legally or otherwise) provide is to follow the documentation approach taken by Ubuntu. Ubuntu is based on the Well Known GNU/Linux Provider (KKGLP) but goes well beyond what the WKGLP chooses to privide. The community of Ubuntu has provided a single document with brief HOWTOs and website references for a lot of commonly needed services that are not provided by Ubuntu or the WKGLP. Granted this document (based on Ubuntu 5.04) but not really updated for Ubunto 5.10) is rapidly aging, but it is an example of what could be a very valuable service. Ubunto also provides a well-organized list of HOWTOs on its forums. This is the place for services like Tomcat which have non-redistributable components. It's perfectly legal to provide concise, up-to-date HOWTOs for software that cannot be redistributed. Perhaps someone (or a group of someones) would like to take on organizing such a compendium of instructions on the CentOS Forum and keeping the compendium up to date? Think how many hours of googling and searching mail archives and copious RTFM could be saved! Instead of firing off a mail to this list, you could first look in a well known place on the Forum and avoid recasting a round object. I'm not in a position to undertake such an endeavor. I keep current with CentOS, and I want to see CentOS thrive, but I have only a peripheral interest in CentOS, and that peripheral interst is a work connection. My employer, like many others, prefers to have a contractural arrangement (who can I kick around if it breaks even though it never breaks?) and to pay big bucks to the WKNAV for that privilege. CentOS is the closest thing I can get for my home system without paying the WKNAV, and this I will not do. Some food for thought. -- Collins Richey Debugging is twice as hard as writing the code ... If you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -Brian Kernighan

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iproute create policy routes after reboot
by Robin Mordasiewicz 30 Oct '05

30 Oct '05

Which files do I need to edit in order to initialize a route after a reboot. I have a 802.1q tagged VLAN interface which I need to create a rule, and a route for. I see on my CentOs 4.2 box that in /etc/iproute2 there are the following files. I realize that I can add my tables to /etc/iproute2/rt_tables, but when I want to create a rule I am not sure where to put the information for the next reboot. [root@smtcormx01 ~ ]# ls -la /etc/iproute2/ total 104 drwxr-xr-x 2 root root 4096 Oct 28 13:44 . drwxr-xr-x 87 root root 12288 Oct 28 21:47 .. -rw-r--r-- 1 root root 299 Feb 21 2005 rt_dsfield -rw-r--r-- 1 root root 286 Feb 21 2005 rt_dsfield.rt_config -rw-r--r-- 1 root root 296 Feb 21 2005 rt_protos -rw-r--r-- 1 root root 276 Feb 21 2005 rt_protos.rt_config -rw-r--r-- 1 root root 113 Feb 21 2005 rt_realms -rw-r--r-- 1 root root 112 Feb 21 2005 rt_realms.rt_config -rw-r--r-- 1 root root 98 Feb 21 2005 rt_scopes -rw-r--r-- 1 root root 92 Feb 21 2005 rt_scopes.rt_config -rw-r--r-- 1 root root 91 Feb 21 2005 rt_tables -rw-r--r-- 1 root root 87 Feb 21 2005 rt_tables.rt_config

2 2

sshd problems
by Thomas E Dukes 30 Oct '05

30 Oct '05

Hello, For some reason ssh has stopped working. Its been a good while since I tried to login remotely so I figure an upgrade is probably to blame as it was working some time ago. This is the only error I see when sshd is started: Oct 28 21:55:52 sshd[7137]: Server listening on :: port 22. Oct 28 21:55:52 sshd[7137]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use. What does this mean? TIA

6 7

another postfix question
by Steven Vishoot 29 Oct '05

29 Oct '05

hello, i was thinking of using postfix for a mail server, the question is can i use this just for in bound email only and have my clients access this server locally. the clients would be outlook. I want this to check certain email accounts i have and download them to the postfix mail server. The reason i would think about doing this is my wife and i need to access both of these accounts and i do not want to keep them on the email account. is this feasable and secure? thanks Steven "On the side of the software box, in the 'System Requirements' section, it said 'Requires Windows or better'. So I installed Linux."

3 2

UP vs SMP kernel ?
by Robert 29 Oct '05

29 Oct '05

There was a discussion here several days ago that was precipitated by my decision to manually install the new kernel before YUMming the upgrade to CentOS 4.2. The upgrade went south but I recovered by doing a fresh install and a bunch of copying from backups. All's well EXCEPT that I'm back in the same "box", thanks to anaconda. I set out to upgrade kernels this morning: [root@mavis download]# yum update kernel\* Setting up Update Process Setting up repositories dag 100% |=========================| 1.1 kB 00:00 update 100% |=========================| 951 B 00:00 base 100% |=========================| 1.1 kB 00:00 addons 100% |=========================| 951 B 00:00 extras 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for kernel-hugemem-devel to pack into transaction set. kernel-hugemem-devel-2.6. 100% |=========================| 656 kB 00:04 ---> Package kernel-hugemem-devel.i686 0:2.6.9-22.0.1.EL set to be updated ---> Downloading header for kernel-smp-devel to pack into transaction set. kernel-smp-devel-2.6.9-22 100% |=========================| 648 kB 00:04 ---> Package kernel-smp-devel.i686 0:2.6.9-22.0.1.EL set to be updated ---> Downloading header for kernel-devel to pack into transaction set. kernel-devel-2.6.9-22.0.1 100% |=========================| 642 kB 00:04 ---> Package kernel-devel.i686 0:2.6.9-22.0.1.EL set to be installed ---> Downloading header for kernel to pack into transaction set. kernel-2.6.9-22.0.1.EL.i6 100% |=========================| 151 kB 00:00 ---> Package kernel.i686 0:2.6.9-22.0.1.EL set to be installed ---> Downloading header for kernel-smp to pack into transaction set. kernel-smp-2.6.9-22.0.1.E 100% |=========================| 151 kB 00:00 ---> Package kernel-smp.i686 0:2.6.9-22.0.1.EL set to be installed ---> Downloading header for kernel-doc to pack into transaction set. kernel-doc-2.6.9-22.0.1.E 100% |=========================| 123 kB 00:00 ---> Package kernel-doc.noarch 0:2.6.9-22.0.1.EL set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: kernel i686 2.6.9-22.0.1.EL update 9.7 M kernel-devel i686 2.6.9-22.0.1.EL update 3.6 M kernel-smp i686 2.6.9-22.0.1.EL update 9.4 M Updating: kernel-doc noarch 2.6.9-22.0.1.EL update 2.0 M kernel-hugemem-devel i686 2.6.9-22.0.1.EL update 3.6 M kernel-smp-devel i686 2.6.9-22.0.1.EL update 3.6 M Transaction Summary ============================================================================= Install 3 Package(s) Update 3 Package(s) Remove 0 Package(s) Total download size: 32 M Is this ok [y/N]: n Exiting on user Command Complete! You have new mail in /var/spool/mail/root [root@mavis download]# rpm -qa | grep kernel kernel-smp-devel-2.6.9-22.EL kernel-2.6.9-22.EL kernel-hugemem-devel-2.6.9-22.EL kernel-utils-2.4-13.1.69 kernel-devel-2.6.9-22.EL kernel-doc-2.6.9-22.EL kernel-smp-2.6.9-22.EL [root@mavis download]# ...and was reminded that anaconda installed both kernels from the CentOS 4.2 DVD. I verified that I had, indeed repaired /boot/grub/grub.conf following the install: [root@mavis download]# cat /etc/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/hdb default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz #hiddenmenu title CentOS-4 i386-up (2.6.9-22.EL) root (hd0,0) kernel /vmlinuz-2.6.9-22.EL ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.9-22.EL.img You have new mail in /var/spool/mail/root Then, I proceeded with the kernel upgrade and checked grub.conf again [root@mavis download]# cat /etc/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/hdb default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz #hiddenmenu title CentOS (2.6.9-22.0.1.ELsmp) root (hd0,0) kernel /vmlinuz-2.6.9-22.0.1.ELsmp ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.9-22.0.1.ELsmp.img title CentOS (2.6.9-22.0.1.EL) root (hd0,0) kernel /vmlinuz-2.6.9-22.0.1.EL ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.9-22.0.1.EL.img title CentOS-4 i386-up (2.6.9-22.EL) root (hd0,0) kernel /vmlinuz-2.6.9-22.EL ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.9-22.EL.img You have new mail in /var/spool/mail/root [root@mavis download]# To find that the ^%#$@ smp kernel is once more the default! And THAT is why this automagic stuff sometimes scares hell outta me.

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