Discuss March 2008

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300 participants
373 discussions

firefox always goes to tw/youtube.com
by P Marvin Eberly 08 Mar '08

08 Mar '08

Hello list, I'm sure this is something simple I'm missing. On CentOS 4.6 fully updated, stock Firefox, if I type in http://www.youtube.com in the address bar it always goes to http://tw.youtube.com and has the encoding all messed up. Same happens if I click on any link to youtube. SeaMonkey does not display the same symptoms and works correctly. firefox-1.5.0.12-0.10.el4.centos.i386 Can someone help me get this fixed? TIA, -- P Marvin Eberly <eberlyml(a)wjtl.net>

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rsync
by Craig White 08 Mar '08

08 Mar '08

I've gone over and over the man page and I don't get it and it's obviously a simple task I want to rsync a directory but only the pdf files... rsync -ncauv --include=*.pdf $WORKING $WEB_SERVER # sync's everything, I want to exclude stuff rsync -ncauv --filter='+ *.pdf' --filter='+ *.odt *.ott *.eps' \ $WORKING $WEB_SERVER # sync's everything...does not seem to exclude anything rsync -ncauv --filter='. /root/scripts/qm_manual_filter' \ $WORKING $WEB_SERVER # cat qm_manual_filter - * + *pdf excludes everything I am using -n for dry-run I definitely need recursive but -a option handles that Suggestions? Craig

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Re: [CentOS] Unable open raw socket in CentOS 5 - SE Linux and kernelcapability interaction?
by Ross S. W. Walker 07 Mar '08

07 Mar '08

The raw socket option in the kernel only allows privileged processes to open them. Selinux controls which privileged processes have the right to. To allow an unprivileged process to access a raw socket you will need to write a proxy daemon that runs privileged and is allowed in selinux to create a raw socket. This daemon can then provide a unix socket to unprivileged processes whose access can be granted with it's security modes and ownership either manually or through udev. -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: CentOS mailing list <centos(a)centos.org> Sent: Fri Mar 07 17:44:15 2008 Subject: Re: [CentOS] Unable open raw socket in CentOS 5 - SE Linux and kernelcapability interaction? What are your current SELinux settings?? cat /etc/selinux/config S Roderick wrote: > Does anyone have any idea on this one? Based on everything we've tried > with kernel capabilities and SE Linux parameters, we're missing > something. Have tried everything we can find online. > > Thanks > Stephen > > On Mar 3, 2008, at 09:14 , S Roderick wrote: > >> I am wondering what is the interaction between SE Linux and the >> kernel "capabilities" in CentOS 5.1? I'm trying to open a raw socket >> and keep getting permission denied errors. I've tried using the lcap >> library to find that CAP_SETPCAP appears to be off in the kernel. For >> compliance reasons, I don't want to turn this on. I've also tried a >> hand-crafted SE Linux module policy. I have verified that the test >> program runs in the correct SE Linux domain and it generates no audit >> errors, but it still fails to open the port with permission denied. >> >> It appears that SE Linux is not preventing the socket being created >> (as evidenced by the lack of audit messages), so what am I missing? >> Do I still need to modify capabilities within the program, even if >> I'm using an SE Linux policy? >> >> Thanks >> S >> >> Source file >> >> #include <stdio.h> >> #include <unistd.h> >> #include <errno.h> >> #include <string.h> >> #include <sys/socket.h> >> #include <sys/types.h> >> #include <sys/prctl.h> >> #include <netinet/in.h> >> >> int >> main(void) >> { >> int fd = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); >> if (-1 == fd) >> { >> printf("Failed to open raw socket: %d=%s\n", errno, >> strerror(errno)); >> } >> else >> { >> printf("Socket opened successfully\n"); >> close(fd); >> } >> return 0; >> } >> >> >> SElinux .te file >> >> policy_module(rawsox,1.0.0) >> >> ######################################## >> # Declarations >> >> type rawsox_t; >> type rawsox_exec_t; >> domain_type(rawsox_t) >> domain_entry_file(rawsox_t, rawsox_exec_t) >> domain_auto_trans(unconfined_t,rawsox_exec_t,rawsox_t) >> >> ######################################## >> # Rawsox local policy >> >> # these two didn't help >> #corenet_raw_sendrecv_all_if( rawsox_t ); >> #corenet_raw_sendrecv_all_nodes( rawsox_t ); >> >> require { >> type lib_t; >> type ld_so_t; >> type ld_so_cache_t; >> type usr_t; >> type devpts_t; >> type rawsox_t; >> type etc_t; >> class lnk_file read; >> class dir search; >> class file { read getattr execute }; >> class chr_file { read write getattr }; >> class rawip_socket create; >> class capability net_raw; >> } >> >> #============= rawsox_t ============== >> allow rawsox_t devpts_t:chr_file { read write getattr }; >> allow rawsox_t etc_t:dir search; >> allow rawsox_t ld_so_cache_t:file { read getattr }; >> allow rawsox_t ld_so_t:file read; >> allow rawsox_t lib_t:dir search; >> allow rawsox_t lib_t:file { read getattr execute }; >> allow rawsox_t lib_t:lnk_file read; >> allow rawsox_t usr_t:dir search; >> >> allow rawsox_t self:capability { net_raw setuid }; >> allow rawsox_t self:rawip_socket { create ioctl read write bind >> getopt setopt }; >> allow rawsox_t self:unix_stream_socket { create_socket_perms }; >> > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

2 1

Slightly OT: How to learn UNIX
by Ugo Bellavance 07 Mar '08

07 Mar '08

Hi, I was wondering what would be the best way to learn AIX, Solaris, or HP-UX, for someone who knows Linux very well? Books? Courses? Self-teaching in a home lab? Thanks, Ugo

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Re: [CentOS] Problem getting JavaRuntime EnvironmentinstalledintoOpenOffice
by Ross S. W. Walker 07 Mar '08

07 Mar '08

You may need to look at 'alternatives' and see if Sun java is still set and set it again if it isn't. If it still doesn't work after that try uninstalling OOo and reinstalling it. If it doesn't work after that, well you may want to try the 32-bit versions to see if they work together. Another good question, are you running the 32-bit or 64-bit version of OOo? I believe the 32-bit OOo will only work with the 32-bit Java, not sure if that is true the other way around though. Is there a reason the GNU Java won't work for your needs? -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: CentOS mailing list <centos(a)centos.org> Sent: Fri Mar 07 17:40:07 2008 Subject: RE: [CentOS] Problem getting JavaRuntime EnvironmentinstalledintoOpenOffice >> Sure I'll give that a try. I thought I had the latest >> release, just downloaded it a few days ago - did they just >> come out with a new one? >> >> If I install the latest, does the script un-install the >> previous version I just installed? >> >> I'm also wondering if I got the correct JRE? I got the JRE from here: >> http://java.sun.com/javase/downloads/index.jsp > > You can have multiple JREs installed, but since this one > ain't working 100% may as well uninstall it manually > with yum remove '*jre*' > > If you aren't doing Java development or hosting a JSP > server there is no real need to have the JDK either. OK, I ran the un install (do not have JDK installed), un install apparently went fine, then I downloaded the jre-6u5-linux-x64-rpm.bin from http://java.sun.com/javase/downloads/index.jsp, Followed these instructions: http://java.sun.com/javase/6/webnotes/install/jre/install-linux.html#install then installed it. Ran a ls -l /usr/java, below is output: total 16 lrwxrwxrwx 1 root root 16 Mar 7 17:28 default -> /usr/java/latest drwxr-xr-x 5 root root 4096 Mar 7 17:28 jre1.6.0_05 lrwxrwxrwx 1 root root 21 Mar 7 17:28 latest -> /usr/java/jre1.6.0_05 Ran java -version, output is: java version "1.6.0_05" Java(TM) SE Runtime Environment (build 1.6.0_05-b13) Java HotSpot(TM) 64-Bit Server VM (build 10.0-b19, mixed mode) Tried to find it in the OO Calc Tools>Options dialog box, only Free Software Foundation v 1.4.2 Maybe I'm not using Tools>Options correctly? _________________________________________________________________ Need to know the score, the latest news, or you need your Hotmail®-get your "fix". http://www.msnmobilefix.com/Default.aspx___________________________________… CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

1 0

system-config-display wrongly sets up Viewsonic VG730m monitor
by Anne Wilson 07 Mar '08

07 Mar '08

I originally set up this monitor with an analogue lead. Everything seemed fine, so I didn't check xorg.conf at all. Then I bought a digital lead, and since then the monitor blinks. Running system-config-display identifies it as a 1280 x 1084 CRT monitor. It is an LCD monitor. That model is not on the drop-down list, so assuming that a specific driver wasn't available for it, I tried telling system-config-display that it is a generic LCD 1280 x 1024 monitor - restarted X, then went back to system-config-display, where it showed up as a CRT monitor. The refresh rate set was way outside the manufacturer's recommendations (1280 x 1024 @ 60Hz). so I tried manually setting refresh rates to match the manual's recommendations. At the moment my xorg.conf has ### Comment all HorizSync and VertSync values to use DDC: Identifier "Monitor0" ModelName "Monitor 1280x1024" ### Comment all HorizSync and VertSync values to use DDC: HorizSync 60.0 - 72.0 VertRefresh 60.0 - 72.0 Option "dpms" EndSection Section "Device" Identifier "Videocard0" Driver "nv" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection SubSection "Display" Viewport 0 0 Depth 16 EndSubSection EndSection Attached is the relevant part of the specification page. Any advice, please? Anne

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rsyslog repo?
by Johnny Tan 07 Mar '08

07 Mar '08

Does anyone know of a CentOS-5 (el5) repo for rsyslog, that's being maintained on a relatively regular basis? I checked all the usual suspects (dag, karan, epel, etc.), but they either don't have rsyslog at all, or they have an old version. Currently, I'm doing a rebuild of the Fedora-8 srpm, but it's at version 2.0.2. I wanted to move to 3.11.x for the disk-assisted buffering, and I was able to fix the spec file such that the package installs and runs. But I'm having other troubles with it (specifically with remote logging, which I was able to get working with the 2.0.2 version). So, I'm troubleshooting those problems as I speak(type), but perhaps rather than reinvent the wheel, I just wanted to check if there's an existing 3.x repo for el5, or if there are people out there who've worked out these problems already. johnn

6 14

Multi domU Xen Box Network Transparent Sound
by Ross S. W. Walker 07 Mar '08

07 Mar '08

(I tried cross-posting between centos and centos-virt, but it only appeared on centos-virt, maybe it was rejected?) I have a new development box at home that I am working on. Currently it has CentOS 5.1 + Xen 3.2 running several domUs. I am using XDMCP on the domUs and an X Chooser on dom0 for connecting to them and it works well, but now I want to be able to get sound from my domUs and I have been struggling. I can get some from network transparent sound by using ESD, but I have no way of controlling the mixer (volume) settings from within the domU which kind of sucks. I have been looking at the possibility of setting up a PulseAudio server in dom0 and installing the ALSA PulseAudio plugin on each domU set to use the dom0 server as from the web site it seems to be able to have remote mixer controls and can be handled as if it were a regular ALSA sound card, which should allow a majority of the apps to work as if there were a local sound card. My questions are: 1) Has anybody on the list used PulseAudio in this type of setup (not necessary Xen interface, but ALSA plugin to remote PulseAudio server)? 2) Does anybody on the list know a compatible repo that carries pre-compiled PulseAudio packages? Thanks in advance, Ross S. W. Walker Information Systems Manager Medallion Financial, Corp. 437 Madison Avenue 38th Floor New York, NY 10022 Tel: (212) 328-2165 Fax: (212) 328-2125 WWW: http://www.medallion.com <http://www.medallion.com/> ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

1 0

Multi domU Xen Box Network Transparent Sound
by Ross S. W. Walker 07 Mar '08

07 Mar '08

I have a new development box at home that I am working on. Currently it has CentOS 5.1 + Xen 3.2 running several domUs. I am using XDMCP on the domUs and an X Chooser on dom0 for connecting to them and it works well, but now I want to be able to get sound from my domUs and I have been struggling. I can get some from network transparent sound by using ESD, but I have no way of controlling the mixer (volume) settings from within the domU which kind of sucks. I have been looking at the possibility of setting up a PulseAudio server in dom0 and installing the ALSA PulseAudio plugin on each domU set to use the dom0 server as from the web site it seems to be able to have remote mixer controls and can be handled as if it were a regular ALSA sound card, which should allow a majority of the apps to work as if there were a local sound card. My questions are: 1) Has anybody on the list used PulseAudio in this type of setup (not necessary Xen interface, but ALSA plugin to remote PulseAudio server)? 2) Does anybody on the list know a compatible repo that carries pre-compiled PulseAudio packages? Thanks in advance, Ross S. W. Walker Information Systems Manager Medallion Financial, Corp. 437 Madison Avenue 38th Floor New York, NY 10022 Tel: (212) 328-2165 Fax: (212) 328-2125 WWW: http://www.medallion.com <http://www.medallion.com/> ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

1 0

umask in nfs
by Craig White 07 Mar '08

07 Mar '08

Normal users umask is 022 set in /etc/bashrc Obviously I can change that value to 002 but that would affect all files created by each user. Is it possible to set a different umask on nfs mounts only so that user created files have a umask of 002 on files saved onto that mount? man mount shows this is possible on some filesystems but man nfs doesn't suggest that this is possible. Craig

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Discuss March 2008