VPN options
by Keith Lofstrom
I am planning on running a Virtual Private Network from my Fedora
firewall out to a UML virtual colo (running RH9) at another site.
That site will be the place I present services to the world;
httpd, ssh, sftp, smtp. This is to comply with the "no servers"
and dynamic ip restrictions on my Comcast connection to the net;
if my firewall always drives an outbound connection to the
colocation site, I am not worried about changes of ip address,
and I am not opening any inbound ports.
There are a number of options for the VPN - the most attractive
are cipe ( http://sites.inka.de/sites/bigred/devel/cipe.html )
and FreeSwan ( http://www.freeswan.org/ ), though I am told that
one can do all this through an ssh tunnel. I would rather have
simple and secure than super-duper; I have plenty of bandwidth,
and will send outbound http and smtp from the firewall, so the
main bandwidth user will be incoming spam/b/b/b/b mail.
Anyone have some experiences to share about setting up VPN? Is
there anything about either cipe or FreeSwan that is likely to
break with FC1 or FC2?
Keith
--
Keith Lofstrom keithl(a)ieee.org Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
1 year, 2 months
ATA2:00: link is slow to respond....
by Angelo Moreschini
Hi,
my computer boot only in emergency mode ...
Looking the journalctl (command journalctl -xb), I found (in thejournalctl
) these lines in red color :
ATA2:00: link is slow to respond....
(and after..)
ATA200: SRST failed (erro 16)
That seem indicate that it is a problem to access the HDs..
I found a possible solution to the problem in this post:
http://codeverge.com/opensuse.org.help.install/-solved-ata1-srst-failed-e...
There is wrote that :...the problem can depend by the physic set up of the
HD (as "master", "slave", "single drive", ...): this set up can be done by
changing the position of a jumper on the HD...
I know that, in the past time, the HDs had to be set physically in this
way.., but recently I never heart anymore that the modern HD need this
operation..
So actually I don't care anymore of the configuration of the HDs
(my HD is Toshiba 1 TB that I bought few mounts ago).
I would like to have a confirmation that what I read in the post is only an
obsolete information and, in any case, I would like to know also what I can
do to go around in my problem..
>From the command line: ls /dev/sd* I get:
give me this input :
/dev/sda /dev/sda1 /dev/sda2 /dev/sda5 /dev/sdb /dev/sdb1
/dev/sdb2
Thank you
regards
Angelo
3 years, 11 months
nc missing option -z
by Suvayu Ali
Hi,
I used to use netcat to check if a particular host is up or if I have
internet connection before I run a few scripts. I would use the -z
option in particular. But now I see that has been removed:
$ nc -z imap.gmail.com 993 && sync-my-email.sh
ncat: invalid option -- 'z'
Here is the excerpt from the old manual page:
-z Specifies that nc should just scan for listening daemons, without
sending any data to them. It is an error to use this option in
conjunction with the -l option.
Any ideas what happened to it? What can I use as replacement?
Thanks for any ideas.
--
Suvayu
Open source is the future. It sets us free.
4 years, 2 months
Re: Replacing cpu
by JD
On 05/29/2015 08:18 AM, lokadamus(a)gmx.de wrote:
>> On 05/23/15 19:08, jd1008 wrote:
>>> I have an HP laptop with
>>> AMD Turion II X2 mobile processor RM-72 / 2.1 GHz CPU, Socket S1.
>>> It is now causing blue screens in windows, and freezes
>>> fbsd, pclinuxos, knoppix, fedora live.
>>>
>>> I have run the x86 mem test for more than a day, and
>>> found no problems with the 4GB ram (2GB X 2).
>>>
>>> I am wondering why the memtest does not freeze????
>>> could it be that only one core is causing the problem?
>>>
>>> At any rate I wanted to replace it with
>>> AMD Turion II Ultra M660 TMM660DBO23GQ 2.7GHz Dual-Core Mobile CPU
>>> Processor, Socket S1
>>>
>>> Will I be running into any problems?
>>> Would the heat be an issue?
>>>
>>> These are the full technical data on it:
>>>
>>> General information
>> I'm think, i'm too late, but make a test with
>> http://www.superpi.net/ (not testet, but super pi was in the past a good
>> program)
>> or
>> http://www.cpuburnin.com/ (same problem, not testet in the last time)
>>
>> Start for every core one instance to bring up your CPU to 100% working.
>>
>> Greetings
Thanks to everyone's suggestions.
I finally had some cycles to open the laptop and cleanup up the
old dried up grease off the cpu and the heat sink and applied
the arctic silver. I smeared it in thin sheet on both the cpu and the
heat sink's contact surface.
I buttoned the thing back up and installed fc20 from DVD iso.
All went well during the install.
I booted and opened the file browser to browse the boot drive. No problems.
I immediately opened the file browser again to seperately browse another
drive
and it crashed instantly after the gui of the 2nd file browser came up.
I uploaded the screen image of crash message to
https://www.sendspace.com/file/exy97h
I noticed that during the installation of fc20, the air coming
out of the exhaust vent was almost scalding if I kept my finger there
for about a minute or so. By scalding, I mean if I had touched
a metal surface of that temperature for say 30 seconds, I would
have felt some pain.
Also, I noticed that the cooling fan remained at normal operating
speed, instead of spinning faster, as I usually hear it spin fast for
about a few seconds when I power it on.
So, I am not sure whether the problem is the fan or the cpu.
P.S: I also ran the memtest 86 full tests of 1 pass.
I installed fc20 after it had reached somewhere near the middle
of pass 2. It had detected no errors. 10 hours had passed since
I had started the memtest86.
I am not sure if each pass would run different tests. Perhaps
someone can expand on that.
5 years, 6 months
Strange booting problem
by JD
Laptop: Dell Latitude E6510.
OS: F20 with all updates
Grub installed on sda.
Power up ,and after bios's internal works, I do not get the grub menu.
All I get is an empty screen with the underscore cursor blinking at
upper left corner.
Reboot.
Press F12 to get the BIOS boot menu.
Select Internal HDD
Boots just fine.
5 years, 6 months
F22 unusable - system freezes on login
by Matthew Woehlke
(First try apparently got eaten; apologies if this is a duplicate.)
I just installed F22 (KDE spin) from scratch on a new Dell M6800. The
Live CD seemed to run okay, but when I try to boot the installed OS, it
(almost¹) invariably freezes when I try to log in. The machine is
effectively unusable as a result.
Has anyone else encountered this? Can anyone recommend a course of
diagnostics? I'm unable to even get the machine into a state that would
allow remote login (over ssh anyway, and I don't know offhand how to set
up serial login), and I've not seen anything in /var/log/messages that
might indicate a problem.
(¹ *Once and only once* I was able to log in, but the system froze as
soon as I tried to run an application. Also, I can log in in single-user
mode, but this isn't good for much but running dnf and fiddling with
enabled services. I *have* applied all updates as of a few hours ago to
no effect.)
--
Matthew
5 years, 6 months
Awk and sort (of text files)
by JD
Hi,
I have text files made of paragraphs of text, separated by
blank lines.
Each "paragraph" is information about a different item.
In need to sort these paragraphs based on the first line
of each paragraph.
Need some hints how to accomplish this.
Thanx.
5 years, 6 months
need grub experts
by François Patte
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Bonjour,
I cannot get a correct resolution for grub. Here is my /etc/defaul/grub:
<--------------------
GRUB_TIMEOUT="10"
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT="0"
#GRUB_SAVEDEFAULT="true"
GRUB_DISABLE_SUBMENU="true"
GRUB_TERMINAL_OUTPUT="gfxterm"
GRUB_CMDLINE_LINUX="rd.md.uuid=81f15cb5:748fb5c1:42bef1a6:1ea1ce47
rd.lvm.lv=fedora/usr rd.md.uuid=4a28174a:f38b4938:233f85f7:6ce585a8
rd.lvm.lv=fedora/racine rd.md.uuid=9f878179:a58f5c78:f645e22e:d7d3c896
rd.lvm.lv=systeme/swap rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
GRUB_GFXMODE="1280x1024x32"
GRUB_GFXPAYLOAD_LINUX="keep"
GRUB_BACKGROUND="/boot/grub2/themes/system/fireworks.png"
#GRUB_THEME="/boot/grub2/themes/system/theme.txt"
export GRUB_COLOR_NORMAL="light-gray/black"
export GRUB_COLOR_HIGHLIGHT="magenta/black"
GRUB_FONT="/boot/grub2/unicode.pf2"
<-------------------------
So, as far as I read the grub doc, because of
GRUB_GFXPAYLOAD_LINUX="keep"
It is suppose to apply the 1280x1024 resolution to the console during
the boot. But it is not the case! I get this resolution only with the
grub first screen: fireworks image and the entry list.
What is missing in my config?
Strangely, I have a "custom file": /etc/grub.d/40_custom, to boot a
debian install:
<-------------------------------
menuentry 'Debian GNU/Linux, avec Linux 3.2.0-4-amd64' --class
debian --class gnu-linux --class gnu --class os {
load_video
set gfxpayload=keep
insmod gzio
insmod mdraid09
insmod part_msdos
insmod part_msdos
insmod ext2
set root='(mduuid/eb8b5efe5a8f9369e940a0f383d63ad1)'
search --no-floppy --fs-uuid --set=root
17e0b155-4d77-4769-b568-723329c5f656
echo 'Chargement de Linux 3.2.0-4-amd64 ...'
linux /vmlinuz-3.2.0-4-amd64
root=/dev/mapper/debian-deb--racine ro quiet
echo 'Chargement du disque mémoire initial ...'
initrd /initrd.img-3.2.0-4-amd64
}
<-----------------------------------------
In that case, the "set gfxpayload=keep" instruction succeeds to give
the correct resolution during the debian boot.
Thanks for any help and suggestion.
- --
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)1 8394 5849
http://www.math-info.univ-paris5.fr/~patte
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5 years, 7 months
Thunderbird blinking browser notice -
by Bob Goodwin
This is Fedora 22, 64 bit, XFCE, etc. with Thunderbird 38.0.1
When I click on a URL in an e-mail message it immediately starts a
blinking browser notice at the top left. I know, I've just selected a
URL and don't need that annoying/distracting box. It's as though I am
being implored to go look at it immediately but I would like to continue
reading messages before doing so.
Does anyone know how to eliminate it or at the least stop the stupid
blinking? Google hasn't helped me ...
Bob
--
Bob Goodwin - Zuni, Virginia, USA
http://www.qrz.com/db/W2BOD
box10 FEDORA-22/64bit LINUX XFCE
5 years, 7 months
