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yum remove from stdout
by David Hláčik 13 Jul '08

13 Jul '08

Hello, little tricky question : i have a file of packages for removal , which looks like that : atk libart_lgpl libXfixes audiofile libXcursor libxslt alsa-lib esound gnome-mime-data libIDL ORBit2 libbonobo libdaemon libXrandr dbus-python avahi avahi-glib gamin shared-mime-info libXres startup-notification libXinerama hicolor-icon-theme gtk2 GConf2 libglade2 libgnomecanvas gnome-keyring libwnck notification-daemon libnotify gnome-vfs2 libgnome libbonoboui gnome-mount libgnomeui xulrunner firefox libXmu xorg-x11-xauth ttmkfdir libfontenc libXfont xorg-x11-font-utils libselinux-python audit-libs-python policycoreutils libFS chkfontpath xorg-x11-xfs xorg-x11-fonts-truetype xorg-x11-fonts-ISO8859-1-100dpi xorg-x11-fonts-100dpi xorg-x11-fonts-ISO8859-2-75dpi xorg-x11-fonts-ethiopic xorg-x11-fonts-misc xorg-x11-fonts-syriac xorg-x11-fonts-ISO8859-9-100dpi xorg-x11-fonts-Type1 xorg-x11-fonts-ISO8859-14-75dpi xorg-x11-fonts-ISO8859-9-75dpi xorg-x11-fonts-ISO8859-2-100dpi xorg-x11-fonts-ISO8859-15-100dpi xorg-x11-fonts-base xorg-x11-fonts-ISO8859-14-100dpi xorg-x11-fonts-ISO8859-1-75dpi xorg-x11-fonts-cyrillic xorg-x11-fonts-75dpi xorg-x11-fonts-ISO8859-15-75dpi libXtst vnc-server libXpm libXaw xterm how to , provide that file to yum, using pipe, or redirect does not work cat result | yum remove .. Thanks in advance!

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using new sysconfig file
by Kai Schaetzl 13 Jul '08

13 Jul '08

I installed postgrey from rpmforge and wanted to use sysconfig to change options instead of overwriting the init file. However, I get a weird warning from postgrey. I'm not sure if this is a postgrey quirk or I use sysconfig the wrong way. /etc/sysconfig/postgrey: OPTIONS="--unix=/var/spool/postfix/postgrey/socket --delay=660" /etc/rc.d/init.d/postgrey: OPTIONS="--unix=$SOCKET --delay=660" # Source an auxiliary options file if we have one, and pick up OPTIONS, if [ -r /etc/sysconfig/$prog ]; then . /etc/sysconfig/$prog fi Error: " invalid for option delay (number expected) (The quote marks are necessary!) Using the additional option directly in the init file works just fine. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Understanding iptables
by MHR 13 Jul '08

13 Jul '08

In following up on the rsh "problem" I was having earlier, I decided to try out the suggestion Felipe sent about using system-config-securitylevel-tui to open up ports 513 and 514, but that doesn't seem to do the job, either. # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination RH-Firewall-1-INPUT all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination RH-Firewall-1-INPUT all -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain RH-Firewall-1-INPUT (2 references) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT icmp -- anywhere anywhere icmp any ACCEPT esp -- anywhere anywhere ACCEPT ah -- anywhere anywhere ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns ACCEPT udp -- anywhere anywhere udp dpt:ipp ACCEPT tcp -- anywhere anywhere tcp dpt:ipp ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:login ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:shell ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:telnet REJECT all -- anywhere anywhere reject-with icmp-host-prohibited Shouldn't this work given the login and shell lines above? Or do they need to come before the ESTABLISHED line, too? Thanks. mhr

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Re: [CentOS] Re: Problem with Bonding Driver
by Art Age Software 13 Jul '08

13 Jul '08

>Very interesting. > >Looking under the hood, it's actually handled by the >/etc/sysconfig/network-scripts/ifup-eth script, which writes the >values to the pseudo-files under /sys/class/net/bondX/bonding/, so >there you go, another way to change that dinamically without having to >restart the interface. Would you be kind to see if you can change the >primary "on-the-fly" using this method? > >Thanks, >Filipe Yes, indeed. I have successfully changed both the primary interface and the miimon value **while the interface is up** by directly writing to the /sys/class/net/bondX/bonding/{Key} files. Changing the bonding mode is not allowed while the interface is up (probably a good thing). This is a great improvement over previous incarnations of Red Hat bonding support. I have even successfully configured two bonds on the same machine using different bonding modes for each. VERY useful! Sam

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Could not start X window
by hce 13 Jul '08

13 Jul '08

Hi, I've just installed CentOS version 5 on a laptop Acer ASPIRE 5920. But could not start X window. It got following error message: Using confi file" "/etc/X11/xorg.conf" (EE) VESA(0): No valid modes (EE) Screens(s) found, but none have a usable configuration. Fetal server error: no screens found XIO: fetal IO error 104 (Connection reset by peer) on X server ":0.0" Please also find attached xorg.conf. Thank you. Kind Regards, Jim

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Can an ISO be specified allow mount "setsebool -P allow_mount_iso=1" insted of "setsebool -P allow_mount_anyfile=1" SE context samba share
by Frank Murphy 13 Jul '08

13 Jul '08

Summary: SELinux prevented mount from mounting on the file or directory "./Fedora-9-Everything-i386-DVD1.iso" (type "samba_share_t"). Detailed Description: SELinux prevented mount from mounting a filesystem on the file or directory "./Fedora-9-Everything-i386-DVD1.iso" of type "samba_share_t". By default SELinux limits the mounting of filesystems to only some files or directories (those with types that have the mountpoint attribute). The type "samba_share_t" does not have this attribute. You can either relabel the file or directory or set the boolean "allow_mount_anyfile" to true to allow mounting on any file or directory. Allowing Access: Changing the "allow_mount_anyfile" boolean to true will allow this access: "setsebool -P allow_mount_anyfile=1." The following command will allow this access: setsebool -P allow_mount_anyfile=1 Additional Information: Source Context system_u:system_r:mount_t Target Context user_u:object_r:samba_share_t Target Objects ./Fedora-9-Everything-i386-DVD1.iso [ file ] Source mount Source Path /bin/mount Port <Unknown> Host server-01 Source RPM Packages util-linux-2.13-0.47.el5 Target RPM Packages Policy RPM selinux-policy-2.4.6-137.1.el5 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name allow_mount_anyfile Host Name server-01 Platform Linux server-01 2.6.18-92.1.6.el5 #1 SMP Wed Jun 25 13:49:24 EDT 2008 i686 athlon Alert Count 3 First Seen Sun 13 Jul 2008 10:26:26 IST Last Seen Sun 13 Jul 2008 11:07:49 IST Local ID 268bdb54-5d8d-4c81-b7ba-0392b5cea34e Line Numbers Raw Audit Messages host=server-01 type=AVC msg=audit(1215943669.186:14): avc: denied { write } for pid=2898 comm="mount" name="Fedora-9-Everything-i386-DVD1.iso" dev=md2 ino=8585227 scontext=system_u:system_r:mount_t:s0 tcontext=user_u:object_r:samba_share_t:s0 tclass=file host=server-01 type=SYSCALL msg=audit(1215943669.186:14): arch=40000003 syscall=5 success=no exit=-13 a0=9fd5450 a1=8002 a2=0 a3=8002 items=0 ppid=2877 pid=2898 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="mount" exe="/bin/mount" subj=system_u:system_r:mount_t:s0 key=(null)

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looking for motherboard / temp / hdd monitor, other than lmsensors
by Rudi Ahlers 13 Jul '08

13 Jul '08

Hi all What other good temp / motherboard / fan speed / HDD / etc monitor can I use on CentOS 5.1 (or even 5.2 - still need to upgrade)? I know lmsensors works ok'ish, but it doesn't pickup my Gigabyte motherboard properly. -- 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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screen command
by Ed Donahue 13 Jul '08

13 Jul '08

Anyone know which rpm give you the screen command? Or tell me how to figure this out on my own :-) Ed

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Reg. VNC server and Windows and Centos interworking
by Padmaja 13 Jul '08

13 Jul '08

Hi all, I have a Windows XP PC and a Centos PC (Centos 4.3 release, kernel- 2.6.9-34.EL) which are in the same LAN. Currently, I am able to use VNC server on the centos to view the Windows PC, but not able to view the Centos PC from the Windows PC. This applies for even file sharing also. The samba server is running and I can view the windows network from Centos PC but in the Windows network, not able to view the Centos PC. Also not able to print from Centos to the LAN printer. Any help is greatly appreciated. Thank You, Padmaja

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NFS options on kernel parameters
by vincenzo romero 13 Jul '08

13 Jul '08

Hello, I am running an NFS server/PXE on a Cent OS 5.1 server. I have defined an NFS export with "no_root_squash" option in my /etc/exports file: # # NFS Export Files # /export/images *(rw,sync,no_root_squash) ... A client PXE boots as a diskless station to the above server into a root-NFS directory underneath the above /export/images export. When the client boots; the NFS export is NOT root-Squashing - whenever I touch a file, it is created as user nobody and NOT root. I would like to NFS root-squash the root directory. I believe that I am missing to pass a parameter in my kernel - (defined in .. /pxelinux.cfg/default) .. currently my kernel parameters are: APPEND root=/dev/nfs rw nfsroot=192.1.2.5:/export/images/root-fs ip=dhcp ... would anyone be kind to provide advise on how I can mount my client so that I am ensure that the "no_root_squash" setting is enabled? thanks in advace. -- best, Vince

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