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i cant find centos 4.4
by Blackburn, Marvin 18 Sep '07

18 Sep '07

Cant find this version. Can some point me in the right direction. _____________________________________ "He's no failure. He's not dead yet." William Lloyd George

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Application icons don't appear in taskbar at bottom of display - they disappear out of bottom right corner!
by Andrew Allen 18 Sep '07

18 Sep '07

Running CentOS 4.4 and something drastic appears to have happened with my display setup - application icons no longer appear in taskbar at bottom of display (when minimized) but disappear off bottom right-hand corner. So it's difficult to multi-task because I have to keep re- opening applications - can anybody suggest what I need to reconfigure please because I can't find any obvious display setting which will cure this problem - thanks. Andy

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cups 1.3 on Centos5?
by Dave 18 Sep '07

18 Sep '07

Hello, Does anyone have cups v1.3.1 running on Centos5? If so, i'd like to roll my own srpm and install it. I'm currently running 1.2.x and want to update to 1.3.1 as it has a bug fix that i need. Any help appreciated. Thanks. Dave.

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dual boot w/WinXP
by Ray Leventhal 18 Sep '07

18 Sep '07

Hi folks, I've been asked advice in an area that I'm not well versed and am hoping for some help. Having read a recent thread where booting to anaconda's kickstart wiped a partition table unexpectedly (to the user...it did what it was configured to do), I'm following the 'measure twice, cut once' rule and asking if this is possible and if so, what is best practice: I have a working WinXP SP2 workstation with an unused partition on the primary HDD. I'd like for the unused area to be used for dual booting CentOS5 but am not sure what needs to be done (if anything) to the config file for kickstart prior to booting with CD1 in the drive. Any suggestions or pointers to docs I may have missed are greatly appreciated. Best regards, ~Ray

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program to monitor USB keys
by Jerry Geis 18 Sep '07

18 Sep '07

I wrote a small program to monitor keyboards found on /dev/input/event* It works great but I always get EAGAIN from my read() function. google says this is normal when open() is used and O_NONBLOCK mode. I know this is slightly offtopic but I was wondering if the centos gurus that also program know anything about this. My goal was to not be eating CPU cycles with a small program that just monitors key presses. With EAGAIN always coming in the process though small keeps waking up. Or perhaps there is another way to do this that I am not aware of. Thanks for any tips. Jerry #include <stdio.h> #include <errno.h> #include <fcntl.h> #include <signal.h> #include <unistd.h> #include <string.h> #include <stdlib.h> #include <sys/stat.h> #include <linux/input.h> #include "smsignal.h" struct _msgnet_keycode { int keycode_value; char *keycode_str; int send_to_server; // .X will also send to server example: .4 says function 4 }; struct _msgnet_keycode msgnet_keycode[] = { {96, "KP_ENTER", 1}, // Keypad Enter Enter MUST be the first entry {28, "KP_ENTER", 1}, // Keypad Enter USB {14, "KP_BackSpace", 1}, // Keypad BS {55, "KP_Multiply", 1}, // Keypad * {98, "KP_Divide", 1}, // Keypad / {78, "KP_Plus", 1}, // Keypad + {74, "KP_Minus", 1}, // Keypad - {83, "KP_Period", 0}, // Keypad . {73, "KP_9", 0}, // Keypad 9 {72, "KP_8", 0}, // Keypad 8 {71, "KP_7", 0}, // Keypad 7 {77, "KP_6", 0}, // Keypad 6 {76, "KP_5", 0}, // Keypad 5 {75, "KP_4", 0}, // Keypad 4 {81, "KP_3", 0}, // Keypad 3 {80, "KP_2", 0}, // Keypad 2 {79, "KP_1", 0}, // Keypad 1 {82, "KP_0", 0}, // Keypad 0 {0, NULL} }; static int key_debug = 0; static int key_timeout = 0; /* incomplete command found so add KP_Enter and submit key presses */ static char keypad_buffer[200] = ""; #define FALSE (0) #define TRUE (1) /************************************************************ ** int main(int argc, char *argv[]) ** ************************************************************/ int main(int argc, char *argv[]) { int i; int fd; int bytes_read; int keycode; int done = FALSE; int any_keyboards; char *ptr; char *ptr_comma; #define MAX_KEY_WATCH (10) int fd[MAX_KEY_WATCH]; char input_name[200]; while(1) { done = FALSE; any_keyboards = FALSE; /* open all /dev/input/event devices */ for(i = 0; i < MAX_KEY_WATCH; i++) { sprintf(input_name, "/dev/input/event%d", i); fd[i] = open(input_name, O_RDONLY | O_NONBLOCK); if(fd[i] >= 0) { ioctl(fd[i], EVIOCGNAME (sizeof (input_name)), input_name); if(strstr(input_name, "Keyboard") || strstr(input_name, "1241:1203")) // Belkin keyboard { printf("Reading from (%d) %s\n", i, input_name); any_keyboards = TRUE; } else { close(fd[i]); fd[i] = -1; } } } if(any_keyboards == FALSE) { /* no keyboards found so sleep and try again */ sleep(10); } while(any_keyboards && done == FALSE) { int bytes_read; struct input_event event_keys[64]; for(i = 0; i < MAX_KEY_WATCH; i++) { if(fd[i] >= 0) { bytes_read = read(fd[i], event_keys, sizeof(event_keys)); if(bytes_read > 0) { /* there is a down event */ /* there is a UP event */ /* there is a UP event */ //printf("D %d %d %d\n", event_keys[0].type, event_keys[0].value, event_keys[0].code); //printf("U %d %d %d\n", event_keys[1].type, event_keys[1].value, event_keys[1].code); if(event_keys[0].type == 1 && event_keys[0].value == 1) { keycode = event_keys[0].code; for(find_key = 0; msgnet_keycode[find_key].keycode_str; find_key++) { if(msgnet_keycode[find_key].keycode_value == keycode) { KeyLog(find_key); break; } } } } else if(bytes_read < 0) { if(errno == EAGAIN) { /* EAGAIN is common on keyboard inputs */ /* but it HAPPENS ALOT */ } else { printf("Disconnect read=%d i=%d errno=%d\n", bytes_read, i, errno); sleep(2); done = TRUE; break; } } if(key_timeout) { KeyLog(0); /* KP_Enter */ } } } } for(i = 0; i < MAX_KEY_WATCH; i++) { if(fd[0] >= 0) { close(fd[i]); fd[0]= -1; } } } return(0); }

2 1

yum kernel update problem
by Chuck Campbell 18 Sep '07

18 Sep '07

On the subject of kernel updates: I had my install kernel (2.6.18-8.el5xen) and 2.6.18-8.1.8.el5xen on the box. I was unable to originally boot the update (8.1.8xen) because of the 3ware driver issues (I needed to use a driver floppy at install time). I jumped through some hoops (which I am struggling to understand) with weak-updates to get the 2.6.18-8.1.8 kernel to see my raid devices, which worked (technology beyond my ken is indistinguishable from magic :-). I had a system which booted either kernel and ran fine, and thought I would be able to update kernels with impunity from now on. I ran the yum update, which updated the kernel along with other things. When it ran, it removed my install kernel (2.6.18-8.el5xen). I now have 2.6.18-8.1.8.el5xen and 2.6.18-8.1.10.el5xen. The 2.6.18-8.1.8.el5xen kernel still works fine, but the 2.6.18-8.1.10.el5xen kernel does NOT see my raid devices. I have a couple of questions: Why did it remove my perfectly functioning install kernel? How can I stop it from doing this? Do I need to re-install the whole OS to get it back (since I needed a driver disk at install time to make it work properly)? I must admit this wasn't expected behavior (at least not by me). TIA, -chuck

3 2

Multiple IP Address
by Brett Serkez 18 Sep '07

18 Sep '07

I'm hoping that someone on this list can shed some light on how Linux/CentOS decides which IP address to report when a Windows desktop attempts to access it via SAMBA/WINS. The CentOS system in question is running a single NIC and OpenVPN which adds two additional virtual NICs. This is a backup system, there is another CentOS system that acts as the primary VPN server. The local NIC is 10.44.0.0/24, the virtual NICs are 10.55.5.0/24 and 10.55.6.0/24, respectively. If a Windows Desktop on the local network attempts to contact this CentOS server, it is given its 10.44.0.x address. If a Windows Desktop is VPN connected to the primary CentOS VPN server, with a 10.55.3.x address, it is given this CentOS server's 10.55.6.x address. It seems the IP address of the requester is being taken into account, perhaps looking for the closest subnet match? Ultimately I'd like the CentOS system to always report its 10.44.0.x address. Is there anyway to force this behavior? Brett

4 9

Recommended WLAN-Adapter for CentOS 5
by Timothy Kesten 18 Sep '07

18 Sep '07

I intend to realize the connection to the Internet by WLAN (at the presen time DSL cable modem). The WLAN DSL-Router should not be the problem. But which wlan- adapter (internally (PCI), USB... whatever) can be recommended for a work "out of is the box" with cent OS 5? Thx Timothy

2 1

Compiling mod_webauth on CentOS 5 - krb dependency failure
by mike＠securityfolk.com 18 Sep '07

18 Sep '07

Hello all, When I try to compile the mod_webauth module on CentOS 5, the dependencies for Kerberos fail. I have the Kerberos libs installed, which is what I assume it's complaining about. Ideas? Is there an RPM missing? Here's some of what I found: [root@localhost webauth-3.5.4]# ./configure checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed <snip> checking for krb5-config... no checking for library containing res_search... no checking for library containing __res_search... -lresolv checking for library containing crypt... -lcrypt checking for krb5_init_context in -lkrb5... no checking for krb5int_getspecific in -lkrb5support... no checking for library containing pthread_setspecific... -lpthread checking for krb5int_setspecific in -lkrb5support... no checking for krb5_cc_default in -lkrb5... no configure: error: cannot find usable Kerberos v5 library [root@localhost webauth-3.5.4]# However, when I search via rpm, I see: [root@localhost webauth-3.5.4]# rpm -qa | grep -i krb krb5-libs-1.5-26 krb5-libs-1.5-29 krb5-server-1.5-29 pam_krb5-2.2.11-1 pam_krb5-2.2.11-1 krb5-workstation-1.5-26 [root@localhost webauth-3.5.4]# Thanks, Mike.

3 2

strange chgrp behavior
by Tomas Ruprich 17 Sep '07

17 Sep '07

Greetings, i had a following problem, which on one side i have already solved, but on other side i don't thing it should behave this way and wish somebody to tell if it is feature or bug ;-) [root@machine home]# chown user user/ [root@machine home]# ls -ld /home/user drwxr-xr-x 66 user staff 4096 /home/user [root@machine home]# chgrp -R staff user/ [root@machine home]# ls -ld user/ drwxr-xr-x 66 root staff 4096 user/ ^^^^^^ I've been working on it hole afternoon, playing with user permissions, moving home directories to others, debugging selinux and other things, but at last, it was caused by [root@machine home]# ls -la user/.openoffice/user/work lrwxrwxrwx 1 root root 13 Aug 28 14:35 user/.openoffice/user/work -> /home/user When i remove this symlink, everything works fine. I tried this on CentOS 4.4 and 4.5 with coreutils-5.2.1-31.4 and coreutils-5.2.1-31.6 and both are doing this. CentOS 5 with coreutils-5.97-12.1.el5 is already fine. I've been searching through coreutils gnu.org archives, but found nothing (maybe i'm not so experienced seeker ;-)) Thanks ------------------------------------------------------------------------------- Tomáš Ruprich ruprich(a)uikt.mendelu.cz DCD IICT MUAF Brno tel.: +420 545 132 885, +420 602 127 744 -------------------------------------------------------------------------------

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