users August 2011

users@lists.fedoraproject.org

255 participants
275 discussions

oovoo.com
by Gregory P. Ennis 25 Apr '12

25 Apr '12

Dear List, I was asked to assist connecting a Fedora linux system for video conferencing with oovoo.com. It is apparent that they support Mac and Windows. Does anyone have any experience in using the Mac installation for oovoo for Fedora? Can anyone make recommendations for connections that allow video conferencing with Fedora. Thanks much -- Greg Ennis PoMec Corporation www.PoMec.net

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Question on shredding a terebyte drive
by Dean S. Messing 16 Jan '12

16 Jan '12

I have a terebyte sata drive that I need to securely wipe clean. It originally had 2 partitions. I deleted them using `fdisk', rebooted, and then as root ran shred -vz /dev/sdd The drive is capable of about 60MB/sec, but shred is only "shredding" about 25MB every 5 seconds according to its output. Since the default number of passes is 25, this works out to about 5 days. The `shred' process is running at 100% CPU, presumably computing the special random patterns for erasure. Since I have 4 CPUs would creating 4 unformatted partions on the drive and then running something like: shred -vz /dev/sdd1 shred -vz /dev/sdd2 shred -vz /dev/sdd3 shred -vz /dev/sdd4 in parallel cut my time? Would be just as secure? Thanks Dean

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Best FOSS alternative for skype?
by Marko Vojinovic 24 Oct '11

24 Oct '11

Ok, I just lost enthusiasm in further use of skype. Being closed source was bad enough already, but I tolerated it due to its good-enough quality, reliability and free-of-charge use for skype-to-skype calls. But now that Microsoft is taking it over, I suddenly lost faith that these good features will still be there from now on (not to mention Linux support). Thus the question: is there a FOSS VoIP app that provides roughly the same quality, reliability and free-as-in-beer service? I do know that there are such VoIP apps, but I am not familiar with the quality of service, availability and accessibility of each of those. I am willing to migrate and start persuading my existing skype contacts (which are scattered all over the globe) to migrate to a FOSS solution as well. But I cannot do that if this alternative does not provide functionality that at least matches that of skype. It has to be up to the task. So which one is on the top of the list, in your opinion? TIA, :-) Marko

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/var/cache/abrt-di
by Ranjan Maitra 07 Oct '11

07 Oct '11

Hi, Looking at my files and diskspace, I note the following: $ sudo du -sm /var/cache/* 1961 /var/cache/abrt-di 1 /var/cache/cups 1 /var/cache/fontconfig 1 /var/cache/foomatic 1 /var/cache/hald 1 /var/cache/jwhois 1 /var/cache/ldconfig 3 /var/cache/man 1 /var/cache/mash 1 /var/cache/PackageKit 217 /var/cache/yum Googling on how to reduce this abrt-di beast, I came up with the solution that you should delete the reports in the abrt GUI tool. But these are all deleted for me, and I think there must be a better way to remove this cache? Any suggestions on how to do this cleanly? Many thanks and best wishes, Ranjan

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Fedora 15: a NFSv4 to glusterfs migration HOW-TO
by Dr. Michael J. Chudobiak 06 Oct '11

06 Oct '11

As detailed in another thread, we upgraded a few test machines on our LAN to Fedora 15 (with gnome-shell and firefox), with user folders served from a NFSv4 server (F14 originally, then F15). It just didn't work. The F15 desktops would freeze frequently. And worse, this would freeze ALL desktops on the LAN intermittently, as the NFS server struggled with client flakiness. When it did work, Firefox would lose authenticated logins randomly, presumably due to corruption of its cookies.sqlite file. sqlite and NFS seems to be a nightmare, for both NFSv3 and NFSv4. Moving from a NFSv4 server to a glusterfs server solved all of these problems, and sped up boot times significantly too. glusterfs looks intimidating at first, because of all its fancy replicating features and what-not, but it turns out to be trivially easy to set up a simple server than will replace 95% of the NFS installations out there. Luckily, you can easily point both the NFS daemon and the glusterfs daemon at the same export folder, so you can migrate clients slowly over time. This HOW-TO is intended to document the process. There are other similar HOW-TOs out there, but they are all a little out-of-date or don't show how to enable locking correctly, which is critical for Firefox. In this example, we export the server's /fileserver folder, and mount it on /fileserver on the clients. In my server, /fileserver was already being served by the NFSv4 server, which is fine. -------------------------------------------- 1. On the server: - yum install glusterfs-server -------------------------------------------- 2. On each client: - yum install glusterfs-fuse - mkdir /etc/glusterfs/ - mkdir /fileserver -------------------------------------------- 3. On the server, edit the volume configuration file (/etc/glusterfs/glusterfsd.vol) so that it looks like this: volume raw type storage/posix option directory /fileserver end-volume volume brick type features/posix-locks subvolumes raw end-volume volume server type protocol/server option transport-type tcp subvolumes brick option auth.addr.brick.allow * end-volume The first stanza selects the basic folder to export. The second stanza adds file locking to it. This is required to support Firefox, and some other applications. The third stanza authorizes everyone to access this file-locked export over the network. There is also a /etc/glusterfs/glusterfsd.vol file on the system, for configuring the management interface. For this simple installation it does not need to be modified. -------------------------------------------- 4. Restart the server services: - service glusterd restart - service glusterfsd restart I believe the first service is a management service, and the second is the actual file-export service. -------------------------------------------- -------------------------------------------- 5. On the client, create the /etc/glusterfs/glusterfs.vol configuration file, which should look like this: volume client type protocol/client option transport-type tcp option remote-host 192.168.0.3 # use YOUR server IP here option remote-subvolume brick end-volume -------------------------------------------- 6. On the client, add this line to the end of /etc/rc.d/rc.local: mount -t glusterfs /etc/glusterfs/glusterfs.vol /fileserver -------------------------------------------- 7. On the client, reboot, and check /var/log/messages for errors. On one machine, we had an selinux problem that was flagged in the logs. We had to manually create the logging file using: touch /var/log/glusterfs/fileserver.log; reboot -------------------------------------------- 8. On the client, see if you can access the files in /fileserver. If not, read the /var/log/glusterfs/* files on both the client and the server. At this point, everything should work! Weird things and gotchas: A. You need the file-locking option to make Firefox work properly. B. LibreOffice wouldn't start on one system, until we did: rm ~/.libreoffice rm ~/.openoffice.org C. selinux prevented the creation of log files on one client, which prevented the filesystem from mouting. The manual fix noted above fixed that. D. This HOWTO mounts the glusterfs from /etc/rc.d/rc.local, which is the last step in the boot process. In theory, you can mount it from /etc/fstab or using autofs. However, we found that autofs mounting just didn't work - not sure why. fstab mounting didn't work either - I suspect it occurred too early in the boot process. /etc needs to be up and running so glusterfs can read the config file, and I don't think the current init/systemd files handle this correctly. There are some Debian bug reports about this that you can google. I hope this is useful to someone, and that we can finally drive a stake through the heart of NFS... - Mike

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kadischi post failed -- Reposted here -- iptables always started no matter what
by Phil Meyer 28 Sep '11

28 Sep '11

Please tolerate this post intended for the livecd-creator list. They are bouncing me now days. Maybe its time I changed deodorant? I dunno ... I am desperate! --- livecd-tools-15.7-1.fc15.x86_64 Kickstarts all contain: firewall --disabled selinux --disabled I even went as far as this: %packages --- [stuff deleted] --- -system-config-firewall* and %post --- [stuff deleted] --- /sbin/chkconfig iptables off /sbin/chkconfig ip6tables off echo '#' > /etc/sysconfig/iptables echo '#' > /etc/sysconfig/ip6tables echo '#' > /etc/sysconfig/iptables-config echo '#' > /etc/sysconfig/ip6tables-config echo "#\n--disabled" > /etc/sysconfig/system-config-firewall %end What happens is that /etc/sysconfig/iptables, /etc/sysconfig/iptables, and /etc/sysconfig/system-config-firewall ALWAYS get recreated AFTER %post runs! That causes the iptables kernel modules to load, and filtering started, even though iptables is actually configured for off and does not start. What is doing that? I cannot find it. Any help is appreciated. Thanks!

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How to setup IPSEC client?
by Eric B. 22 Sep '11

22 Sep '11

Hi, I'm trying to setup FC14 with an IPSEC client to connect to my VPN at work. I have been given a PEM/KEY file for authentication (and a p12 if needed) but I can't seem to figure out how to configure IPSEC. I've been trying to read up on it as much as possible, but I just can't get a good grasp on how to do this. I have all the settings I need, but I just can't figure out how/where to configure them. The Network Manager tool doesn't have anything that supports PEM/Key certificates, and the same goes for the Network Configuration gui as well. Can anyone please point me in the right direction how to best set this up? Thanks! Eric

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selinux + mailman +postfix security problem (F14)
by Fulko Hew 12 Sep '11

12 Sep '11

On Fedora 14, I am setting up postfix and mailman. I had this working once, but I decided to yum erase postfix and mailman and redo the configuration to prove I knew how to recreate it. Turns out I don't know how to recreate a working combination because when creating a new list I now have mailman error log that talks about: command failed: /usr/sbin/postalias /etc/mailman/aliases (status: 1, Operation not permitted) and a corresponding AVC error: Aug 25 10:28:54 (null) (null): audit(1314282534.501:4326): avc: denied { search } for pid=12121 comm=postalias name=postfix ino=295074 dev=dm-0 scontext=system_u:system_r:mailman_cgi_t:s0 tcontext=system_u:object_r:postfix_etc_t:s0 tclass=dir Suggestions? Fulko

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Kernel bug ?
by linux guy 08 Sep '11

08 Sep '11

I get the following when I boot F15 on my Dell Duo. kernel BUG at drivers/media/media-entity.c 346! invalid opcode: 0000 [#1] SMP Modules linked in: snd_hda_codec_conexant uvcvideo(+) microcode(+) snd_hda_intel(+).... It goes on from there, including a Call Trace. My Duo won't boot because of this problem. Its also not displaying the grub kernel selection screen. It just boots. It runs F15 Live just fine. How do I fix this problem or what can I do to work around it ? Thanks

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Latest update boots to blank screen (nvidia)
by CS DBA 06 Sep '11

06 Sep '11

Hi All; I have an IBM Thinkpad with an Nvidia card ( nVidia Corporation GT218 [NVS 3100M] (rev a2) ) I currently have the nouveau driver black listed in my grub.conf setup: /rhgb quiet nouveau.modeset=0 rdblacklist=nouveau/ I did the update which installed/updated the following: ---> Package kernel.i686 0:2.6.35.14-95.fc14 set to be installed ---> Package kernel-devel.i686 0:2.6.35.14-95.fc14 set to be installed ---> Package kernel-headers.i686 0:2.6.35.14-95.fc14 set to be updated ---> Package kmod-nvidia.i686 1:280.13-2.fc14 set to be updated However when I reboot the system boots to a blank screen, and even the previous kernel boots to a blank screen. I tried installing akmod-nvidia but get the same results I've restored the system back to before the update for now... Thoughts? Thanks in advance -- --------------------------------------------- Kevin Kempter - Constent State A PostgreSQL Professional Services Company www.consistentstate.com ---------------------------------------------

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