network bridge default MTU -- apparent change
by Joe Conway
In the last few days I've noticed network connectivity issues from
multiple virtual machines (fedora, centos, winxp) running on a fedora 12
host. What seemed odd was that I could ping by host name, showing that
both the basic network functionality as well as DNS was working. What
was failing was browser access to any site outside my own subnet.
I'm reasonably sure the issue is the MTU setting for my host bridge
(br0) interface. It currently shows:
# ifconfig
br0 [...]
UP BROADCAST RUNNING PROMISC MULTICAST MTU:576 Metric:1
[...]
I would have expected MTU:1500. In fact most of the examples I've found
show other people with br0 having MTU=1500.
My short term workaround has been to manually set MTU to 576 in each of
my VMs. This works, but I'm wondering:
1) Have others seen this?
2) Is there any way to manually increase MTU for the bridge interface?
WRT #2, I tried:
ifconfig br0 mtu 1500
and get this error:
SIOCSIFMTU: Invalid argument
I also tried adding MTU=1500 to ifcfg-br0. No joy.
Any ideas?
Thanks,
Joe
14 years, 3 months
Mail clients - which way forward?
by mike cloaked
I wonder if anyone might offer advice about the way forward with mail
client choice to satisfy a set of needs?
I currently use Thunderbird as my mail client of choice for the
following reasons:
1) It has both email support with a good address book facility, as
well as caldav calendar support via the lightning extension. This will
sync calendars with both google and yahoo calendars.
2) It has GPG encryption support via the enigmail extension
3) It is being developed at present, and I currently use Thunderbird
3.1b2 in Fedora even though the stock version is somewhat behind this
nightly version.
Even though the local storage is in mbox format which I dislike (I far
prefer maildir), I don't need it since I run a local dovecot imap
server on each machine and run filters to copy mail to the local imap
store which then also has the advantage that mail is client agnostic.
I don't need the GLODA or other fancy indexing systems, but the search
bar within Thunderbird serves my needs perfectly well.
Now there appears to be a forthcoming problem in that rumour has it
that enigmail will stop being developed beyond Thunderbird 3.2 so if I
continue to update the mail client then at some point I will lose the
ability to use encrypted mail within the mail client - and that is
important to me, SMIME is available but I will still need to decrypt
previous mails and I really do prefer GPG to SMIME anyway.
So the question is which other mail client has a good UI, will support
encryption (GPG) within the client, and hopefully has local maildir
format, calendar (caldav) support and good filter facilities as well
as being able to cope well with multiple email accounts? This needs
to be a client that looks like it will be supported as we move into
the future of Fedora.
Anyone able to offer considered advice?
Thanks
--
mike c
14 years, 3 months
What is IP Address ::1 ?
by Jonathan Ryshpan
Fetchmail produced a number of errors like:
connection to localhost:smtp [::1/25] failed: Connection
refused.
These appeared to be caused by this /etc/hosts file:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
which has two possible resolutions for localhost, one of which, namely "::1",
isn't recognized. I attempted to fix things by eliminating the "::1"
line, to produce the hosts file:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
But using this file causes mounts on /media to fail (in my case a
detachable hard drive and a camera).
Both problems are cured with this hosts file:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost6 localhost6.localdomain6
All this seems related to IPV6 configuration, but how isn't clear to me.
Can anyone elucidate? Should I file a bug against the
original /etc/hosts ?
Thanks - jon
14 years, 3 months
gnome stickynotes applet replacement
by Neil Bird
Can anyone explain the deal with the GNOME sticky notes applet and its
disappearance in Fedora 12?
There's a blanket comment in the release notes of its being replaced by
gnote, but IMHO they're different beasts. This is not helped by the fact
that the so-called sticky-notes-importer plugin for gnote doesn't (well,
didn't for me or my wife's notes).
The GNOME guys, a few years back, apparently decided that stickynotes
ought to be deprecated in favour of TomBoy, as SN replicated some of TB's
functionality, but gnote still isn't, AFAIK, a full-functionality
replacement for TomBoy, and since there *are* aspects of stickynotes that
aren't replicated¹ (again, AFAICS) by gnote, the whole thing seems a bit
premature.
I do also use a 'proper' notes app. (tuxcards, as it happens, for it's
ability to encrypt pages - does gnote?), so can't understand the argument
that the one app. can do both jobs.
Looking at the RPMs now, it doesn't even look as if GNOME have formally
deprecated it yet; the removal is uniquely part of the Fedora RPMs.
¹ - like being able to have important but short-life-span notes in your face
on the desktop.
--
[neil@fnx ~]# rm -f .signature
[neil@fnx ~]# ls -l .signature
ls: .signature: No such file or directory
[neil@fnx ~]# exit
14 years, 3 months
Packagekit 0.5.7 and update type
by Michael Cronenworth
Starting with PackageKit 0.5.7, all updates display the same orange icon
for update type. Instead of red for security, green for update, or the
bug for bugfix, they're all the same. Is this a bug? (searched bugzilla,
no matches) or are my systems (all that have PK 0.5.7) wacked?
It could be an API difference with gnome-packagekit, but I've searched
through its bugs, too, and didn't find anything of value.
Michael
14 years, 3 months
How to add a true type font
by Khemara Lyn
Hello All,
I have a bunch of .ttf files and want to add to Fedora 12 system
(system-wide, not per-user). What is the standard way of adding these
fonts now?
I remember the old way, using ttmkfdir, chkfontpath, fc-cache, etc. but
those packages seem to be obsolete now and they are not even included
with Fedora 12 repos.
Hope for your kind response.
Regards,
Khem
14 years, 3 months
Huge initrd
by Rares Aioanei
I compile my own vanilla kernels for testing and I noticed that the
initrd of those kernels is huge as you will see in a moment[1]. The
.config is a copy of Fedora's with only two modifications (append
version and CPU family). The method of compiling is a classic make
oldconfig; make all; make modules_install; make install. Why is my
initrd so big? Thanks.
[1]
ls -alh /boot | grep initr
-rw-r--r-- 1 root root 11M 2010-03-17 14:18
initramfs-2.6.31.5-127.fc12.x86_64.img
-rw-r--r-- 1 root root 12M 2010-03-17 15:34
initramfs-2.6.32.9-70.fc12.x86_64.img
-rw-r--r-- 1 root root 94M 2010-03-17 19:36
initramfs-2.6.34-rc1-00997-ga3d3203.img
14 years, 3 months
In eveloution how do I
by Terry Polzin
* Filter messages as they arrive like I do kmail?
* Expire messages in folders like I do in kmail?
If someone could point out how to do these 2 things which should be simple
enough. I can rid myself totally from kmail and KDE4 which is combersome even
on my Dell D630
Thanks,
Terry
14 years, 3 months
How to Install Nvidia Driver in Fedora12?
by 严晶涛
My classmate has bought a computer with GT220.
When I download Nvidia Driver,use init 3 to run it.
but it prompt that cannot find nvidia.ko..
I have searched Google,and changed menu.lst,added *nouveau.modeset=0
*This time,I have install Nvidia Driver success,but when I reboot,I can't
login it,it's blank screen.
I have try many times,I found,when I use *init 3*,and run *rmmod nouveau*,then
I can use *startx* login to Gnome.
But it's too troublesome,I want to know how to do,then I can turn on the
computer and direct into Gnome...
--
此致
严晶涛
14 years, 3 months
