Re: [CentOS] Low random entropy

[Alice Wonder]

On 05/27/2017 08:32 PM, Robert Moskowitz wrote:



On 05/26/2017 08:35 PM, Leon Fauster wrote:

Am 27.05.2017 um 01:09 schrieb Robert Moskowitz :

I am use to low random entropy on my arm boards, not an intel.

On my Lenovo x120e,

cat /proc/sys/kernel/random/entropy_avail

reports 3190 bits of entropy.

On my armv7 with Centos7 I would get 130 unless I installed rng-tools
and then I get ~1300.  SSH into one and it drops back to 30! for a
few minutes.  Sigh.

Anyway on my new Zotac nano ad12 with an AMD E-1800 duo core, I am
seeing 180.

I installed rng-tools and no change.  Does anyone here know how to
improve the random entropy?


http://issihosts.com/haveged/

EPEL: yum install haveged


WOW!!!

installed, enabled, and started.

Entropy jumped from ~130 bits to ~2000 bits

thanks

Note to anyone running a web server, or creating certs.  You need
entropy.  Without it your keys are weak and attackable.  Probably even
known already.



Indeed. Installing haveged is the first thing I do when setting up a new 
CentOS 7 machine.


Rebooting and verifying it starts on boot is the second.

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Re: [CentOS] Low random entropy

[Robert Moskowitz]

On 05/26/2017 08:35 PM, Leon Fauster wrote:

Am 27.05.2017 um 01:09 schrieb Robert Moskowitz :

I am use to low random entropy on my arm boards, not an intel.

On my Lenovo x120e,

cat /proc/sys/kernel/random/entropy_avail

reports 3190 bits of entropy.

On my armv7 with Centos7 I would get 130 unless I installed rng-tools and then 
I get ~1300.  SSH into one and it drops back to 30! for a few minutes.  Sigh.

Anyway on my new Zotac nano ad12 with an AMD E-1800 duo core, I am seeing 180.

I installed rng-tools and no change.  Does anyone here know how to improve the 
random entropy?


http://issihosts.com/haveged/

EPEL: yum install haveged


WOW!!!

installed, enabled, and started.

Entropy jumped from ~130 bits to ~2000 bits

thanks

Note to anyone running a web server, or creating certs.  You need 
entropy.  Without it your keys are weak and attackable.  Probably even 
known already.



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Re: [CentOS] Installing support for Chinese text in Centos 7

[H]

On 04/07/2017 10:12 AM, H wrote:

I installed fcitx-pinyn, and its dependencies, and I now have ZH as a choice 
but have not been able to type pinyin and get a list of Chinese characters to 
choose among like I could on CentOS 6. Does anyone have it working?


On 4/2/2017 11:27 AM, H wrote:

Thank you, I just discovered your post. I just installed fcitx-pinyin to try 
out.

On 02/25/2017 09:04 PM, Scott Robbins wrote:

On Sat, Feb 25, 2017 at 08:51:41PM -0500, Scott Robbins wrote:

On Sat, Feb 25, 2017 at 08:42:43PM -0500, H wrote:

I have just done a minimal installation of Centos7 followed by X Windows and 
the Mate desktop on a workstation. Although the default language is English, I 
would like to be able to write Chinese text in various applications.

I seem to remember this was very easy to do in Centos 6 and Gnome: possibly only 
requiring only a simple 'yum groupinstall "Chinese Support"' after which I 
could use iBus to switch between languages. This does not seem to work in Centos 7.



These days, I use fcitx-anthy on CentOS (which took some work to set up,
but ibus-anthy, at least, (for Japanese) worked pretty well. I have
instructions, again, for Japanese, but quite possibly applicable at
http://srobb.net/jpninpt.html#CentOS6

I'm going to add that a quick look through pkgs.org shows that CentOS-7x
does have packages for fcitx-pinyin and a few other Chinese engines, and it
might be worth considering making the switch. It seems (general impression
on my part) to be replacing ibus in a lot of places, in the same way ibus
gradually replaced scim.




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Still have not solved my problem above, i.e., after installing fcitx I can 
switch between US English and a European language but not to Chinese.

I run the Mate Desktop on CentOS 7 and the configuration tool for fcitx that 
has been installed in the Settings Panel complains that a 
fcitx-config/fcitx-configtool program is missing.

I have not been able to find that program on the 'net and am hoping someone 
else - anyone - is using fcitx for input of an Asian language in CentOS7/Mate...

By the way, LibreOffice seems to have a couple of Chinese fonts installed, I am 
not sure I need to install additional fonts for the OS?

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Re: [CentOS] Disable Top Left Hot Corner

[Pete Biggs]

On Sat, 2017-05-27 at 14:51 -0400, Mike - st257 wrote:
> awk one-liner found here:
> https://unix.stackexchange.com/a/196726
> 
> Whether it's persistent through package updates is another matter.
> 

Unfortunately that doesn't work as the requisite file
(/usr/share/gnome-shell/js/ui/layout.js) doesn't actually exist in
CentOS 7 - it's for an older version of gnome-shell.

The way to do it is to use the shell extension "nohotcorners" - but the
OP doesn't want to use that and has various other criteria that need to
be satisfied.

P.

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Re: [CentOS] Disable Top Left Hot Corner

[Mike - st257]

awk one-liner found here:
https://unix.stackexchange.com/a/196726

Whether it's persistent through package updates is another matter.

On Fri, May 26, 2017 at 1:54 PM, Raymundo N.F. 
wrote:

> Hello everybody.
>
> I have CentOS Linux release 7.3.1611 (Core ) instaled in mi PC. I want to
> disable *Top Left Hot Corner* function from my OS, but i don´t want to
> install the gnome-shell extension nohotcorners. I want to disable
> permanently, i want to diseable from the OS with a sentences from the
> command line.  It is Possible?, i hope so. Thanks :D
> ___
> CentOS mailing list
> CentOS@centos.org
> https://lists.centos.org/mailman/listinfo/centos
>



-- 
---~~.~~---
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//  SilverTip257  //
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[CentOS] Centos7: util-linux-2.23.2-33.el7.x86_64 was supposed to be removed but is not!

[johan . vermeulen7]

Hello All, 

a few weeks ago, I got this output after running yum clean all && yum update. 
Now after yesterday's updates, things got a little worse: 

[jvermeulen@localhost ~]$ sudo yum clean all 
Geladen plugins: fastestmirror 
Opschonen repo's:adobe-linux-x86_64 base epel extras nux-dextop updates 
Cleaning up everything 


[jvermeulen@localhost ~]$ sudo yum update 
Geladen plugins: fastestmirror 
adobe-linux-x86_64 | 2.9 kB 00:00:00 
base | 3.6 kB 00:00:00 
epel/x86_64/metalink | 23 kB 00:00:00 
epel | 4.3 kB 00:00:00 
extras | 3.4 kB 00:00:00 
nux-dextop | 2.9 kB 00:00:00 
updates | 3.4 kB 00:00:00 
(1/9): epel/x86_64/group_gz | 170 kB 00:00:00 
(2/9): adobe-linux-x86_64/primary_db | 2.7 kB 00:00:00 
(3/9): epel/x86_64/updateinfo | 799 kB 00:00:00 
(4/9): base/7/x86_64/group_gz | 155 kB 00:00:01 
(5/9): base/7/x86_64/primary_db | 5.6 MB 00:00:02 
(6/9): epel/x86_64/primary_db | 4.7 MB 00:00:02 
(7/9): extras/7/x86_64/primary_db | 167 kB 00:00:02 
(8/9): nux-dextop/x86_64/primary_db | 1.6 MB 00:00:02 
(9/9): updates/7/x86_64/primary_db | 5.6 MB 00:00:02 
Determining fastest mirrors 
* base: mirror.kinamo.be 
* epel: fr.mirror.babylon.network 
* extras: mirror.kinamo.be 
* nux-dextop: mirror.li.nux.ro 
* updates: mirror.kinamo.be 
Oplossen van afhankelijkheden 
--> Transactiecontrole uitvoeren 
---> Pakket dracut.x86_64 0:033-463.el7 wordt bijgewerkt 
---> Pakket dracut.x86_64 0:033-463.el7_3.1 wordt een update 
---> Pakket dracut-config-rescue.x86_64 0:033-463.el7 wordt bijgewerkt 
---> Pakket dracut-config-rescue.x86_64 0:033-463.el7_3.1 wordt een update 
---> Pakket util-linux.x86_64 0:2.23.2-33.el7 wordt bijgewerkt 
---> Pakket util-linux.x86_64 0:2.23.2-33.el7_3.2 wordt een update 
--> Klaar met oplossen afhankelijkheden 
--> Vinden van overbodige achtergebleven afhankelijkheden 
Found and removing 0 unneeded dependencies 

Afhankelijkheden opgelost 


 
Package Arch Versie Repository Grootte 

 
Bijwerken: 
dracut x86_64 033-463.el7_3.1 updates 317 k 
dracut-config-rescue x86_64 033-463.el7_3.1 updates 54 k 
util-linux x86_64 2.23.2-33.el7_3.2 updates 1.9 M 

Transactie Samenvatting 

 
Upgrade 3 Pakketten 

Totale download grootte: 2.3 M 
Is this ok [y/d/N]: y 
Downloading packages: 
Delta RPMs disabled because /usr/bin/applydeltarpm not installed. 
(1/3): dracut-033-463.el7_3.1.x86_64.rpm | 317 kB 00:00:00 
(2/3): dracut-config-rescue-033-463.el7_3.1.x86_64.rpm | 54 kB 00:00:01 
(3/3): util-linux-2.23.2-33.el7_3.2.x86_64.rpm | 1.9 MB 00:00:02 

 
Totaal 1.0 MB/s | 2.3 MB 00:00:02 
Running transaction check 
Running transaction test 
Transaction test succeeded 
Running transaction 
Bijwerken : util-linux-2.23.2-33.el7_3.2.x86_64 1/6 
Error unpacking rpm package util-linux-2.23.2-33.el7_3.2.x86_64 
error: unpacking of archive failed on file /usr/bin/namei: cpio: rename 
Bijwerken : dracut-033-463.el7_3.1.x86_64 2/6 
Error unpacking rpm package dracut-033-463.el7_3.1.x86_64 
error: util-linux-2.23.2-33.el7_3.2.x86_64: install failed 
error: unpacking of archive failed: cpio: lstat 
Bijwerken : dracut-config-rescue-033-463.el7_3.1.x86_64 3/6 
Error unpacking rpm package dracut-config-rescue-033-463.el7_3.1.x86_64 
error: dracut-033-463.el7_3.1.x86_64: install failed 
error: unpacking of archive failed: cpio: lstat 
Verifiëren : util-linux-2.23.2-33.el7_3.2.x86_64 1/6 
dracut-033-463.el7.x86_64 was supposed to be removed but is not! 
Verifiëren : dracut-033-463.el7.x86_64 2/6 
Verifiëren : dracut-config-rescue-033-463.el7_3.1.x86_64 3/6 
dracut-config-rescue-033-463.el7.x86_64 was supposed to be removed but is not! 
Verifiëren : dracut-config-rescue-033-463.el7.x86_64 4/6 
Verifiëren : dracut-033-463.el7_3.1.x86_64 5/6 
util-linux-2.23.2-33.el7.x86_64 was supposed to be removed but is not! 
Verifiëren : util-linux-2.23.2-33.el7.x86_64 6/6 

Mislukt: 
dracut.x86_64 0:033-463.el7 dracut.x86_64 0:033-463.el7_3.1 
dracut-config-rescue.x86_64 0:033-463.el7 dracut-config-rescue.x86_64 
0:033-463.el7_3.1 
util-linux.x86_64 0:2.23.2-33.el7 util-linux.x86_64 0:2.23.2-33.el7_3.2 

Compleet! 

I also tried: 

sudo yum clean all && rpm --rebuilddb 

Apart from that, I don't know what I can safely use. 
Can I try something like : rpm -e --nodeps util-linux 
and then reïnstall it? 

Thanks for any advise. 

greetings, J. 

Re: [CentOS] CentOS 7 openvswitch

[Fabian Arrotin]

On 26/05/17 17:33, Günther J. Niederwimmer wrote:
> Hello,
> can I found a repository with openvswitch ?
> 
> I have to install openvswitch for my NIC's om my Server, then I can configure 
> my KVM NIC's better.
> 
> Thanks for a answer,
> 
Built and maintained through Cloud SIG, so for example in the
openstack-ocata repository :

http://mirror.centos.org/centos/7/cloud/x86_64/openstack-ocata/

So yum install -y centos-release-openstack-ocata ; yum list
'*openvswitch*' would do it

-- 
Fabian Arrotin
The CentOS Project | http://www.centos.org
gpg key: 56BEC54E | twitter: @arrfab



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