requirements

• ceph cluster (kraken release)
• elasticsearch

The rgw syncer is only used/triggered in multisite configurations - so we need to setup a second zone for the metasearch.

environment / settings

export rgwhost="192.168.122.80"
export elastichost="192.168.122.71"
export realm="demo"
export zonegrp="zone-1"
export 1zone="zone1-a …

First - s3cmd config
Setting signature_v2 = true is not enough! You have to set --signature-v2 as a parameter.

Second - 'Prefix' tag
You have specify a Prefix tag - and yes with a captial P!

without prefix tag

<LifecycleConfiguration>
    <Rule>
        <ID>ExampleRule</ID>
    <Status>Enabled</Status>
        <Expiration>
             <Days>1</Days>
        </Expiration>
    </Rule>
</LifecycleConfiguration …

Fetch zonegroup configuration (json struct)

# radosgw-admin zonegroup get > /tmp/zonegroup.json

change the tier_type to elasticsearch

Import the configuration

# radosgw-admin zonegroup set --infile /tmp/zonegroup.json

Fetch zone configuration (json struct)

# radosgw-admin zone get > /tmp/zone.json

Add the following parameter endpoint & {url} for the section tier_config

    "tier_config": [
        {
            "key": "endpoint …

Environment
2x ceph cluster (aio) running centos 7.2 /w ceph jewel. Added a 2nd crush rule to both clusters:

rule rep_osd {
    ruleset 1
    type replicated
    min_size 1
    max_size 10
    step take default
    step choose firstn 0 type osd
    step emit
}

(ceph crush map)

Setup

Install the rbd-mirror package in …

Configure a remote

git remove -v
# git remote add  
git remote add upstream https://github.com/foo/bar.git
git remove -v

Pull "upstream"

# git fetch 
git fetch upstream

Checkout the master

git checkout master

Merge "upstream" master to local master

# git merge /
git merge upstream/master

(optional) Delete old …

If you're trying to boot the Archlinux 2010.05 CD/DVD/Netinstall and getting the message

ERROR: boot device didn't show up after 30 seconds ...

try this one to fix the problem

$ udevadm trigger
$ exit

To create a shared disk between two or more VMs, login into one of your ESX hosts and create a disk image.

cd /vmfs/volumes/#volume-name#/#vm-name#/;
vmkfstools -d thick -a lsilogic -c 50G shareddisk.vmdk;

Add the new hardrive to the guest(s) and select a new SCSI bus …

For a PPPoE Passthrough on DD-WRT, enable jffs and do the following steps on a *nix-based system

cd /tmp;
wget http://kamikaze.openwrt.org/8.09.1/brcm-2.4/packages/rp-pppoe-relay_3.10-1_mipsel.ipk;
tar zxf rp-pppoe-relay_3.10-1_mipsel.ipk;
tar zxf data.tar.gz;
scp usr/sbin/pppoe-relay root@:/tmp/

Start …

You would like to know what Grub VGA Mode you can use ? Default is something like that

Color depth      | 640x480  800x600  1024x768 1280x1024
-----------------+-------------------------------------
256        (8bit)|  769      771       773      775
32000     (15bit)|  784      787       790      793
65000     (16bit)|  785      788       791      794
16.7 Mill.(24bit)|  786      789       792      795

but …

RADIUS steht für Remote Authentication Dial In User Service und ist ein Triple-A-System (Authentifizierung, Autorisierung und Accounting). Dieser kann in einem WLAN als zentraler Authentifizierungsserver dienen und genau dass will ich hier mal dokumentieren !

Da ich Zertifikate einsetzen wollte, musste ich erstmal den freeRADIUS unter Debian Etch/Lenny neubauen, weil …