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what is data center? what is on-premises data center ? what is region ?

what is data center? ------------------------ data center is a place where we have infrasture data center is dedicated to certain person this data center is maintained by the person he is the owner of the data center this is also called as physical data center short form is PDC aws is also maintaining multiple data centers across the globe aws is also maintaining multiple PHYSCIAL DATA CENTERSS centers across the globe on-premises data center ----------------------------- this is type of data centers are dedicated to particular business owners ex: suppose if xyz bank or abc bank maintain this type data center. this is called as sbi on-premises data center   region ------- region is a location where aws maintaining their physical infrastructure 

linux user management

how can you modify user id ? ------------------------------------ by using usermod command with help of u option/flag ex:usermod -u 1500 u1 u1 user id =1500 how can you modify user login name ? ---------------------------------------------- usermod -l devops_engineer u1 usermod -l java_developer  u2            new login name  old name output: -------- u1 user will become devops_enginner u2 user will become java_developer 

How to copy the data from one server to another server

 scenario -1: copy the data from one loc another loc within the server               we are using only server1               by using cp command scenario -2: copy the data from one server to another server                     we are using two servers like server1 and server2                    both are Linux servers only                    both servers are available inside AWS Cloud                    by using scp and rsync               scenario -3: copy the data from one server to another server                    we are also using two server like server1 and server2                   ...

How to create Deployment using YAML Script

 apiVersion: apps/v1 kind: Deployment metadata:   name: kkdeployment spec:   replicas:3   selector:     matchLabels:       app: kkapp1   template:     metadata:       labels:         app: kkapp1     spec:       containers:         - name: kkcon1           image: location and name           ports:             - containerPort: 80

how to get AWS credits through AWS Educate:

Step 1: Determine Your Eligibility You can join if you're a student/teacher/educator Step 2: Sign Up for AWS Educate use this link: https://www.awseducate.com/registration/s/registration-detail?language=en_US&promocode=EducateLP Step 3: Sign Up for AWS Educate Click "Join AWS Educate" Choose your account type: Student - Get up to $100-$200 in credits Student - Get up to $100-$200 in credits Educator - Get classroom resources + credits Step 4: Complete Registration        For Students:        You'll need:         Valid .edu email address (institutional email)         OR proof of enrollment (student ID, transcript, enrollment letter)       Step 5: Fill out the form with: Personal information Institution name Field of study Expected graduation date For Educators: Institutional email School/university affiliation Course information Step 6: Verification AWS will review your application (usually...

softskills notes

 s+v2+o to+v1 ============ 1.వారు పరీక్ష రాయటానికి వచ్చారు they came to write an exam 2.వారు మాతో మాట్లాడానికి వచ్చారు they came to my home to talk with us  3.వారు హైదరాబాద్ చూడటానికి వచ్చారు they came to see Hyderabad  4.వారు పరీక్ష రాయటానికి హైదరాబాద్ వచ్చారు they came to Hyderabad to write an exam 5.వారు మమ్మల్ని చూడటానికి వచ్చారు     they came to my home to see  s+did not+v1+o to+v1 ==================== 1.వారు పరీక్ష రాయటానికి రాలేదు      they did not come to write an exam 2.వారు మాతో మాట్లాడానికి రాలేదు  they did not come to talk with us 3.వారు హైదరాబాద్ చూడటానికి రాలేదు they did not come to see Hyderabad 4.వారు పరీక్ష రాయటానికి హైదరాబాద్ రాలేదు     they did not come to Hyderabad to write an exam 5.వారు మమ్మల్ని చూడటానికి రాలేదు      they did not come to see last week we admitted in the Hospital , but they did not come to see  1.నేను హాస్పిటల్ లో వున్నపుడు --- when I w...

30.12.2025 Kubernetes Class Notes

  kubectl exec --------------- it is kubectl command  which is used to enter into "Pod" and "Container" also how to enter into my container ------------------------------------- kubectl exec -i -t kkpod1 -c kkcon1 --  /bin/bash kubectl exec -it kkpod1 -c kkcon1 -- /bin/bash 1... interactive  -i  --user can able to interactive with terminal  2... terminal -t      --provides kind of terminal setup 3... /bin/bash        --provides bash environment  4... -- (two hypens)  --it separates kubectl commands and arguments from     the other commands 5... -c (container)   --it specifies container  cluster--->nodes--->pods---->containers---->application+deps 1.cluster --------- the overall Kubernetes environment where we have multiple nodes 2.Nodes ------- it is nothing but a virtual machine(server) that holds multiple pods 3.pods --------- it is a place that holds multiple contai...