Re: JOB | Permanent Sysadmin (Netherlands or remote)

[Saint Michael]

I can do the job remotely. I am Linux+database guru.
Philip

On Tue, Dec 5, 2017 at 10:43 PM, James Tobin  wrote:

> Hello, I'm working with an employer that is looking to hire a
> permanent Linux sysadmin to become their expert on Hadoop and Kafka
> maintenance.  This person can be based either at the Netherlands
> office or remote.  Consequently I had hoped that some members of this
> mailing list may like to discuss with me further; off-list.  I can be
> reached using "JamesBTobin (at) Gmail (dot) Com".  Kind regards, James
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Re: Setting biosdevname=0 netif.names=0 in Fedora 25 seems no to work

[Saint Michael]

It is spelled wrong
it is net.ifnames
no
netif.names


On Sat, Dec 3, 2016 at 1:17 PM, Kevin Wilson  wrote:

> Hi Patrick,
>
> >Try net.ifnames=0
> Not sure what you mean; the cat /proc/cmdline in my post mentioned
> that it includes:
> "biosdevname=0 netif.names=0"
>
> Do you mean to use netif.names=0 in the kernel command line without
> biosdevname=0?
>
> Regards,
> Kevin
>
>
> On Sat, Dec 3, 2016 at 3:42 PM, Patrick Laimbock 
> wrote:
> > On 03-12-16 13:46, Kevin Wilson wrote:
> >>
> >> Hello,
> >> There is a way to avoid using the enp2s* naming conventions for
> >> ethernet cards and use eth*  instead by adding
> >> biosdevname=0 netif.names=0
> >
> >
> > Try net.ifnames=0
> >
> > HTH,
> > Patrick
> >
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Re: remote process/questions

[Saint Michael]

Have you tried "screen"?


On Fri, Nov 11, 2016 at 10:02 AM, bruce  wrote:

> On Tue, Nov 8, 2016 at 1:33 PM, Rick Stevens  wrote:
> > On 11/08/2016 10:00 AM, bruce wrote:
> >> Hey Rick!!
> >>
> >> Thanks for the reply...
> >>
> >> That was kind of going to be my thinking..
> >>
> >> I came across some apps that appear to be devOps related, one of which
> >> was ClusterSSH/Cluster SSH.
> >>
> >> As far as I can tell, it appears to allow you to setup the given
> >> ipAdress, as well as user to run the ssh connection as and the ssh
> >> ocnfig files, to allow the user to connect/access to the given term
> >> sessions for the remote instances.
> >>
> >> The app also appears to allow you to then run the different commands
> >> to the given systems. (Not sure if you can "package" the commands you
> >> want to run, so you can run group of cmnds to different groups of
> >> systems.)
> >>
> >> I'm currently looking at information on this, as well as a few others.
> >>
> >> My use case, has a bunch of vms on digitalocean, so I need a way of
> >> "managing"/starting the processes on the machines - manual ain't going
> >> to cut it when i have 40-50 to test, and if things wrk, will easily
> >> scale to 300-500 where I have to spin up, run the stuff, and then spin
> >> them down..
> >>
> >> Actually, it would be good to have a gui/tool to be able to implement
> >> the DO/digitalocean API to generate/create, run, create the snapshots,
> >> destroy, to save costs.
> >>
> >> Whew!!
> >
> > Ok, what I suggested was really aimed at launching processes in the
> > background on a remote machine in a way where you could check on them.
> >
> > ClusterSSH (a.k.a. "cssh") is a different beastie. It's a GUI tool that
> > allows you to open parallel ssh sessions to a whole bunch of remote
> > machines simultaneously. We use it a lot, as we have about 300 machines
> > in our data center broken into "clusters" that do specific things.
> >
> > ClusterSSH opens a small terminal window for each machine so you can
> > see what's going on. You can enter commands for THAT machine in that
> > window as well. It also opens a "master" command line window, and
> > whatever you type into that master window gets sent to ALL of the open
> > windows. Fairly handy, but be REALLY careful, as sometimes (due to
> > network load, etc.) some keystrokes may NOT make it to all of the open
> > windows. This can be disastrous if you're, say, editing files and such.
> >
> > cssh does offer a way to specify a command to be sent to all of the
> > windows by using its "-a" option. I'd imagine it'd be something like:
> >
> > cssh -a "screen -d -m -S firstsessionname 'command you wish to
> > run on the VM'" user1@1.2.3.4 user1@5.6.7.8
> >
> > which should run that screen command on the two machines specified. I
> > can't speak to that too well. We don't typically use it like that--we
> > tend to use it in the interactive mode only.
> >
> > I can give you examples of cssh usage (such as an /etc/clusters file
> > and such) if you want to go down that road.
> >
> >> On Tue, Nov 8, 2016 at 12:12 PM, Rick Stevens 
> wrote:
> >>> On 11/08/2016 04:02 AM, bruce wrote:
>  Hi.
> 
>  Trying to get my head around what should be basic/trivial process.
> 
>  I've got a remote VM. I can fire up a local term, and then ssh into
>  the remote VM with no prob. I can then run the remote functions, all
>  is good.
> 
>  However, I'd really like to have some process on the local side, that
>  would allow me to do all the above in a shell/prog process on the
>  local side,
> 
>  Psuedo Processes::
>  -spin up the remoter term of user1@1.2.3.4
>  -track the remote term/session - so I could "log into it" see what's
>    going on for the initiated processes"
>  -perform some dir functions as user1 on the remote system
>  -run appA  as user1 on 1.2.3.4 (long running)
>  -run appB  as user1 on 1.2.3.4 (long running)
>  -etc..
>  -when the apps/processes are finished, shut down the "remote term"
> 
>  I'd prefer to be able to do all of this, without actually having the
>  "physical" local term be generated/displayed in the local desktop.
> 
>  I'm going to be running a bunch of long running apps on the cloud, so
>  I'm trying to walk through the appropriate process/approach to
>  handling this.
> 
>  Sites/Articles/thoughts are more than welcome.
> >>>
> >>> 1. Set up ssh keys so you don't need to use passwords between the
> >>> two systems (no interaction).
> >>>
> >>> 2. Launch your tasks on the remote VM using screen over ssh by doing
> >>> something like:
> >>>
> >>> ssh user1@1.2.3.4 screen -d -m -S firstsessionname "command
> you wish to
> >>> run on the VM"
> >>> ssh user1@1.2.3.4 screen -d -m -S secondsessionname "second
> command you
> >>> wish to run on the VM"
> >>>
> >>> 

Re: Good article on systemd

[Saint Michael]

The issue is systemd+mariadb. Anything higher than Fedora 22 may have the
same issue.


On Fri, Sep 30, 2016 at 10:42 AM, Chris Murphy <li...@colorremedies.com>
wrote:

>
>
> On Fri, Sep 30, 2016, 8:31 AM Saint Michael <vene...@gmail.com> wrote:
>
>> Systemd made me stop using Centos 7.
>> https://jira.mariadb.org/browse/MDEV-10925?page=com.
>> atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel
>> In short, the most recent update to Centos7, makes Mariadb unable to
>> start in both versions that use systemd.
>> This affects millions of users. I had to replace my container for a
>> Fedora 22 one, and lower ,my version of Mariadb.
>> Does anybody of any work around?
>>
>>
>
> Replace the container with Fedora 24 and raise the version of Mariadb?
>
> Fedora 22 is EOL.
>
>
> Chris Murphy
>
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Re: Good article on systemd

[Saint Michael]

Systemd made me stop using Centos 7.
https://jira.mariadb.org/browse/MDEV-10925?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel
In short, the most recent update to Centos7, makes Mariadb unable to start
in both versions that use systemd.
This affects millions of users. I had to replace my container for a Fedora
22 one, and lower ,my version of Mariadb.
Does anybody of any work around?



On Fri, Sep 30, 2016 at 9:05 AM, Glenn Holmer  wrote:

> On 09/30/2016 07:41 AM, Sam Varshavchik wrote:
> > Pretty much says everything there is to say about systemd, in one
> > compact article:
> >
> > https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet
>
> https://medium.com/@davidtstrauss/how-to-throw-a-tantrum-in-one-blog-post-
> c2ccaa58661d#.8cem83295
>
> --
> Glenn Holmer (Linux registered user #16682)
> "After the vintage season came the aftermath -- and Cenbe."
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Re: a stop job is running....

[Saint Michael]

I filed this bug in Fedora years ago. Unhappy to see it still is not fixed

On Thu, Sep 15, 2016 at 7:42 PM, Terry Polzin  wrote:

> I've noticed an issue trying to shutdown when there are NFS and CIFS mounts
>
> On Thu, Sep 15, 2016 at 5:50 PM, Tom Horsley 
> wrote:
>
>> On Thu, 15 Sep 2016 23:40:19 +0200
>> François Patte wrote:
>>
>> > Why theses messages?
>>
>> Because systemd has a gazillion bugs like this and they
>> are having so much fun introducing yet more bugs that
>> they aren't remotely interested in making what they have
>> actually work correctly.
>>
>> I have noticed that sometimes you can get it to stop
>> waiting by holding down Ctrl-Alt-Del. If it repeats
>> long enough, systemd eventually gets the idea you'd
>> like it to stop.
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>
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DNF is missing command

[Saint Michael]

​I am using Fedora 23 and documentation I found says that this command
should exist:
​
​dnf --quiet --duplicated,
​
But the command does not exist

This is the version I have, which I am not sure how to interpret
dnf --version
1.1.10
  Installed: dnf-0:1.1.10-1.fc23.noarch at 2016-09-02 18:43
  Built: Fedora Project at 2016-08-18 14:43

  Installed: rpm-0:4.13.0-0.rc1.13.fc23.x86_64 at 2016-09-02 18:43
  Built: Fedora Project at 2016-04-25 13:50

I need to remove duplicates, what is going on?
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Re: Question on best process to setup new install

[Saint Michael]

I run that command and the final output showed for duplicate names. I guess
that some packages have 32 bit counter parts.
How would you modify the command to transfer all the packages and their
architecture?


On Wed, Jun 22, 2016 at 2:05 AM, Michael D. Setzer II <
mi...@kuentos.guam.net> wrote:

> Question on setup machine after clean install?
> This is the process I've been using.
>
> rpm --qf "%{NAME}\n" -qa | sort  | grep -v gpg-pubkey | grep -v kmod-V |
> grep -v google-earth > installed_pkgs.txt
>
> Copy all *.repo files from /etc/yum.repos.d
> Copy files from  /etc/pki/rpm-gpg/
> After putting copied files on new machine run
> dnf install `cat installed_pkgs.txt`
>
> General have to minor issues.
> msttcorefonts-2.5-1.noarch is no longer available, but have a copy, so
> manually install it.
> Other issue is with google-chrome seems it gpg isn't in the
> /etc/pki/rpm-gpg directory?
> wget https://dl.google.com/linux/linux_signing_key.pub
> sudo rpm --import linux_signing_key.pub
>
> Any ways to improve this process?
>
>
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