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problems with Sendmail + SpamAssassin
by Gatto Luigi 08 Jul '08

08 Jul '08

when the mail server receives mail to be sent to multiple users with attachments responds with a mistake by refusing to forward the mail Can you help? Luigi A. Gatto ------------------------------------------- Luigi Antonio Gatto mail: l.gatto(a)poliba.it -------------------------------------------

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Firebug 1.2.0b4 for FF3
by Gavin Carr 08 Jul '08

08 Jul '08

The current beta version of Firebug doesn't appear to install on Firefox 3 on CentOS 5.2, apparently because it's reporting itself as 3.0b5 rather 3.0. I tweaked the minVersion requirement in the xpi to 3.0b5 and it seems to be working fine for me now. In case anyone else is interested in testing it, my tweaked version is available here: http://www.openfusion.com.au/labs/dist/firebug-1.2.0b4-fx.xpi If it turns out to be stable we might be able to convince the firebug team to relax the minVersion requirement for us CentOS users. Cheers, Gavin

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Re: [CentOS] how do I find out which nameserver returns a DNS query? {SOLVED}
by Rudi Ahlers 08 Jul '08

08 Jul '08

Jonathan Wright wrote: > Rudi Ahlers wrote: >> Hi all >> >> If I do a "dig mydomain.co.za" from a Linux server, how do I know >> which DNS nameserver returns the queries? >> >> I seem to have a faulty DNS server, but can't see which one, so I >> want to find out which nameserver (if there's 4 - ns1.myserver, >> ns2.myserver, ns3.myserver & ns4.myserver) returns the queries? >> > > Try the +trace option - it will get dig to output the details of each > request on a full resolution (bypassing any local name-server and > performing it's own lookup from the root servers onwards). > > e.g. dig +trace mydomain.co.za > It doesn't lik me :( dig +trace cp.hostfactor.co.za ; <<>> DiG 9.3.3rc2 <<>> +trace cp.hostfactor.co.za ;; global options: printcmd . 36416 IN NS E.ROOT-SERVERS.NET. . 36416 IN NS M.ROOT-SERVERS.NET. . 36416 IN NS G.ROOT-SERVERS.NET. . 36416 IN NS B.ROOT-SERVERS.NET. . 36416 IN NS F.ROOT-SERVERS.NET. . 36416 IN NS L.ROOT-SERVERS.NET. . 36416 IN NS K.ROOT-SERVERS.NET. . 36416 IN NS A.ROOT-SERVERS.NET. . 36416 IN NS D.ROOT-SERVERS.NET. . 36416 IN NS H.ROOT-SERVERS.NET. . 36416 IN NS I.ROOT-SERVERS.NET. . 36416 IN NS J.ROOT-SERVERS.NET. . 36416 IN NS C.ROOT-SERVERS.NET. ;; Received 228 bytes from 4.2.2.1#53(4.2.2.1) in 49 ms Segmentation fault hehe. That's a nice trick though, I noticed after the 3rd attempt that it goes to our domain registrars nameservers, then segment faults again. But I'm sure this will do the trick On another server it worked as expected, and I could see which nameserver returned the query. My reason for looking for this is that we run 2 nameservers, one on Linux & 1 on Windows - serving the same domain, but it's not synced, so I wanted to see what happens if records change on one server and not the other. -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff

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resend undelivable mail?
by chloe K 08 Jul '08

08 Jul '08

Hi all how can I resend the undeliverable from 5 days to 3 days? thank you for your help --------------------------------- Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!

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Couple of CentOS 5.2 dhcp notes
by Ian Forde 07 Jul '08

07 Jul '08

1. Apparently, since I updated from 5.1 to 5.2, dhcpd no longer wants to stay running. The config is sound, and I can start it from the command-line with the "-d" flag and it serves up leases. But without the -d flag, it just silently dies... 2. Syslog contains this little snippet: dhcpd: Internet Systems Consortium DHCP Server V3.0.5-RedHat Figured you'd want to know... ;) -I

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Back to my Xwindows kernel panic
by Robert Moskowitz 07 Jul '08

07 Jul '08

I have a newly built drive with 5.2 fresh install (that I will be cloning shortly) in my DECtop and it is failing with X the same way the upgrade from 5.1 drive did (not too supprising there). In 5.1 X worked. I could startx from init 3 and get into GNOME. Also VNC into the box and have a GNOME screen. With 5.2, I get a kernel panic. Well I guess it is a kernel panic because once I run startx from the console, my SSH session to the box from my notebook is frozen. From /etc/sysconfig/hwconf I have: class: VIDEO bus: PCI detached: 0 desc: "National Semiconductor Corporation Geode GX2 Graphics Processor" vendorId: 100b deviceId: 0030 subVendorId: 100b subDeviceId: 0030 pciType: 1 pcidom: 0 pcibus: 0 pcidev: 1 pcifn: 1 the /etc/X11/xorg.conf has # Xorg configuration created by system-config-display Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "Monitor" Identifier "Monitor0" ModelName "Monitor 1024x768" ### Comment all HorizSync and VertSync values to use DDC: HorizSync 31.5 - 57.0 VertRefresh 50.0 - 70.0 Option "dpms" EndSection Section "Device" Identifier "Videocard0" Driver "vesa" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection Now the way I got this working in 5.1 and 5.2 (5.1 install died for some reason or other, forget which and for 5.2 this unit has the powerk8 patch requirement), I install on an old compaq and change to init 3. I then move the drive and run system-config-display to get the unit to read the hwconf file and reset xorg.conf. This worked fine in 5.1. In 5.2, the system hangs. What to do? btw, i tried pci=noapci with no change. A couple other facts about this system. No accessable bios. When the system is booting (in character mode) the video frequently goes off then back on; some refresh problem. I have also seen this at times in a session on the console when I enter some commands. It would be nice to fix this. It might also tie in with the X problem. Thank you for your continued help. .

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Acer 5920 audio chip does not work in CentOS 5.2?
by hce 07 Jul '08

07 Jul '08

Hi, I've installed CentOS 5.2 to a laptop Acer 5920 for dual boot, the audio works in Window Vista, but does not work in CentOS 5.2. Does CentOS 5.2 support following audio chip or not? Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Thank you. Kind Regards, Jim

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gentee
by ann kok 07 Jul '08

07 Jul '08

Hi what is the different between the gentee and centos? thank you

5 4

SIGPIPE in assorted apps after "yum update"
by John Hanks 07 Jul '08

07 Jul '08

Hello, I have several systems which I recently updated with yum -y update to all the latest packages. These systems use yum-priorities and use the CentOS (priority 1) EPEL (priority 5) and rpmforge (priority 10) repositories. After the updates, dhcpd stopped working with a SIGPIPE error which occurs shortly after it attempts to fork into the background. I worked around that problem by building a new server with no additional repos, only CentOS and dhcpd works fine on that system. Since then I have found the problem, or similar problems with a few more applications. Here is what the tail of an strace of pbs_mom as it attempts to fork into the background: listen(5, 512) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 6 setsockopt(6, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 bind(6, {sa_family=AF_INET, sin_port=htons(15003), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 listen(6, 512) = 0 fcntl(4, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0, len=0}) = 0 clone(Process 23938 attached (waiting for parent) Process 23938 resumed (parent 23937 ready) child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x2aaaaad30db0) = 23938 [pid 23937] exit_group(0) = ? getsockname(3, 0x7fff6b7728a0, [128]) = -1 ENOTSOCK (Socket operation on non-socket) fcntl(3, F_GETFD) = 0 dup(3) = 7 fcntl(7, F_SETFD, 0) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 8 close(3) = 0 fcntl(8, F_GETFD) = 0 dup2(8, 3) = 3 fcntl(3, F_SETFD, 0) = 0 close(8) = 0 write(3, "\25\3\1\0\22\334\362\36\233\253\205\2633\323\322q\4\3T\rxK\210", 23) = -1 EPIPE (Broken pipe) --- SIGPIPE (Broken pipe) @ 0 (0) --- Process 23938 detached This is pretty much the same thing that happened to dhcpd. In both cases they applications work fine in debug mode when they don't attempt to fork, but quietly die when ran normally. A third set of apps, wrappers for the client part of torque (pbs_mom) do this: stat("/usr/local/sbin/pbs_iff", {st_mode=S_IFREG|S_ISUID|0755, st_size=21412, ...}) = 0 pipe([5, 6]) = 0 clone(Process 24068 attached (waiting for parent) Process 24068 resumed (parent 24067 ready) child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x2aaaaad31ce0) = 24068 [pid 24067] close(6) = 0 [pid 24067] fcntl(5, F_GETFL) = 0 (flags O_RDONLY) [pid 24067] read(5, <unfinished ...> [pid 24068] getsockname(3, {sa_family=AF_INET, sin_port=htons(41855), sin_addr=inet_addr("129.123.148.49")}, [1164321820984213520]) = 0 [pid 24068] getpeername(3, {sa_family=AF_INET, sin_port=htons(636), sin_addr=inet_addr("129.123.20.92")}, [68719476752]) = 0 [pid 24068] fcntl(3, F_GETFD) = 0x1 (flags FD_CLOEXEC) [pid 24068] dup(3) = 7 [pid 24068] fcntl(7, F_SETFD, FD_CLOEXEC) = 0 [pid 24068] socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 8 [pid 24068] close(3) = 0 [pid 24068] fcntl(8, F_GETFD) = 0 [pid 24068] dup2(8, 3) = 3 [pid 24068] fcntl(3, F_SETFD, 0) = 0 [pid 24068] close(8) = 0 [pid 24068] write(3, "\25\3\1\0\22\346h\357n\r\17x\374B\312\217\374x\276\311\217\342%", 23) = -1 EPIPE (Broken pipe) [pid 24068] --- SIGPIPE (Broken pipe) @ 0 (0) --- Process 24068 detached <... read resumed> "", 4) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- close(5) = 0 wait4(24068, [{WIFSIGNALED(s) && WTERMSIG(s) == SIGPIPE}], 0, NULL) = 24068 close(4) = 0 write(2, "No Permission.\n", 15No Permission. ) = 15 write(2, "qstat: cannot connect to server "..., 63qstat: cannot connect to server moab.hpc.usu.edu (errno=15007) ) = 63 exit_group(-1) = ? Once again, the app dies after it attempts to fork into the background. There are other things running on these systems that can successfully fork and I have been unable to figure out any pattern, other than if I don't use additional repos then it doesn't seem to break. That may be coincidental though, I haven't repeated it enough yet to be certain. Any hints or suggestions would be appreciated. Unfortunately I noticed this after deciding it was "safe" to update *all* my machines and so I'm suffering through a lot of rebuilds/restores because of this. Thanks, jbh

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Help with gnome terminal
by James B. Byrne 07 Jul '08

07 Jul '08

I am experiencing a problem with gnome terminal, most likely caused by something that I have done and which I need to undo. The problem is that somehow the gnome configuration has been changed so that the "Contents" menu item under "Help" in Gnome Terminal has the character "space" mapped as a keyboard accelerator. I would prefer that this be mapped to just about anything else, in fact, nothing at all would be best. I have gone to system/preferences/keyboard shortcuts/ and it indicates that "Launch Help Browser" is mapped to F1. There does not seem to be any other entry therein relating to help. How do I set this to a benign value or return gnome terminal to its default settings? Regards, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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