Linux & Unix (Ubuntu,Debian,RedHat,Centos)
Principles of Network and System Administration,
What is network and systemadministration?,
Applying technology in an environment,
The human role in systems,
Ethical issues,
Is systemadministration a discipline?,
the challenges of systemadministration,
Common practice and good practice,
Bugs and emergent phenomena ,
Themeta principles of systemadministration ,
Knowledge is a jigsaw puzzle,
To the student ,
Some road-maps
Jenkins
OCI – Kubernetes – 1
Kubernetes – Pod Creation Examples
* Replica 3, Name : nginx-deployment
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
apiVersion: apps/v1 kind: Deployment metadata: name: nginx-deployment labels: app: nginx spec: replicas: 3 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx:1.14.2 ports: - containerPort: 80 |
* Create a simple Pod to use as a test environment
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
apiVersion: v1 kind: Pod metadata: name: dnsutils namespace: default spec: containers: - name: dnsutils image: gcr.io/kubernetes-e2e-test-images/dnsutils:1.3 command: - sleep - "3600" imagePullPolicy: IfNotPresent restartPolicy: Always |
* dd
1 |
kubectl apply -f https://k8s.io/examples/admin/dns/dnsutils.yaml |
* cc
*
Ref :
- https://kubernetes.io/docs/tasks/administer-cluster/dns-debugging-resolution/
- a
- b
- c
- d
Kubernetes
Zyxel Wireless N300 Access Point Wireless- wap3205
User Guides & DataSheet Download PDF files
Advantages : 5 x RJ 45 : 100Mbit
* Wifi signal DB power adjustable.
* Low power
* Wifi 2 Wifi Device Network blocking for security.
* Cheap
Ref:
https://www.zyxel.com/de/de/products_services/Wireless-N300-Access-Point-WAP3205-v3/downloads
Openvpn Performance between Hosts and Gigabit Networks
Please check the Attached file.
openvpn_optimize_performance_kutayzorlu.com .PDF
Ref: community.openvpn.net/openvpn/wiki/Gigabit_Networks_Linux
community.openvpn.net/openvpn/wiki/CipherNegotiation?__cf_chl_jschl_tk__=pmd_xPY8Gm26WIZ2ClMtxQJz27ARlNNQ6GqKB9jzxS1jWWE-1631625297-0-gqNtZGzNAfujcnBszQg9
Ref: itsecblog.de/haertung-eines-openvpn-servers/
community.openvpn.net/openvpn/wiki/SWEET32?__cf_chl_jschl_tk__=pmd_l43C3HUwF3rtPdg4pcrXEvZPkbEFR0A_6sS.CM7_CkE-1631656761-0-gqNtZGzNAeWjcnBszQm9