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    Conclusion

    +

    With this we have traversed through the TCP/IP stack completely. We hope there will be a different perspective when one opens any website in the browser post the course.

    +

    During the course we have also dissected what are common tasks in this pipeline which falls under the ambit of SRE.

    +

    Post Training Exercises

    +
      +
    1. Setup own DNS resolver in the dev environment which acts as an authoritative DNS server for example.com and forwarder for other domains. Update resolv.conf to use the new DNS resolver running in localhost
      2. +
    2. Set up a site dummy.example.com in localhost and run a webserver with a self signed certificate. Update the trusted CAs or pass self signed CA’s public key as a parameter so that curl https://dummy.example.com -v works properly without self signed cert warning
      3. +
    3. Update the routing table to use another host(container/VM) in the same network as a gateway for 8.8.8.8/32 and run ping 8.8.8.8. Do the packet capture on the new gateway to see L3 hop is working as expected(might need to disable icmp_redirect)
      4. +
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    • diff --git a/linux_networking/ipr/index.html b/linux_networking/ipr/index.html index 6060ed3..c9dbdab 100644 --- a/linux_networking/ipr/index.html +++ b/linux_networking/ipr/index.html @@ -14,7 +14,7 @@ - Routing and Conclusion - SchoolOfSRE + Routing - SchoolOfSRE @@ -86,7 +86,7 @@ - Routing and Conclusion + Routing @@ -376,12 +376,12 @@ - Routing and Conclusion + Routing @@ -402,13 +402,6 @@ Applications in SRE role - - -
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    • @@ -890,15 +888,6 @@ Now to send the packet to 172.17.0.1 linux has to figure out the MAC address of
  • Understanding error messages better like, “No route to host” error can mean mac address of the destination host is not found and it can mean the destination host is down
  • On rare cases looking at the ARP table can help us understand if there is a IP conflict where same IP is assigned to two hosts by mistake and this is causing unexpected behavior
    • -

    Conclusion

    -

    With this we have traversed through the TCP/IP stack completely. We hope there will be a different perspective when one opens any website in the browser post the course.

    -

    During the course we have also dissected what are common tasks in this pipeline which falls under the ambit of SRE.

    -

    Post Training Exercises

    -
      -
    1. Setup own DNS resolver in the dev environment which acts as an authoritative DNS server for example.com and forwarder for other domains. Update resolv.conf to use the new DNS resolver running in localhost
      2. -
    2. Set up a site dummy.example.com in localhost and run a webserver with a self signed certificate. Update the trusted CAs or pass self signed CA’s public key as a parameter so that curl https://dummy.example.com -v works properly without self signed cert warning
      3. -
    3. Update the routing table to use another host(container/VM) in the same network as a gateway for 8.8.8.8/32 and run ping 8.8.8.8. Do the packet capture on the new gateway to see L3 hop is working as expected(might need to disable icmp_redirect)
      4. -
    @@ -932,13 +921,13 @@ Now to send the packet to 172.17.0.1 linux has to figure out the MAC address of -
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    • @@ -916,7 +928,7 @@ The flow control is established by the win size field in each segment. The win s Next - Routing and Conclusion + Routing
    diff --git a/linux_networking/udp/index.html b/linux_networking/udp/index.html index bf86d49..60a720f 100644 --- a/linux_networking/udp/index.html +++ b/linux_networking/udp/index.html @@ -406,7 +406,19 @@
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    • @@ -1102,7 +1114,7 @@ hello_world.c OS Specific machinecode | A New Pr
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    • diff --git a/sitemap.xml b/sitemap.xml index 8003585..78ebfc7 100644 --- a/sitemap.xml +++ b/sitemap.xml @@ -139,5 +139,9 @@ None 2020-11-17 daily + + None + 2020-11-17 + daily \ No newline at end of file diff --git a/sitemap.xml.gz b/sitemap.xml.gz index a6fe330..afb6b32 100644 Binary files a/sitemap.xml.gz and b/sitemap.xml.gz differ diff --git a/systems_design/availability/index.html b/systems_design/availability/index.html index dbb8202..8913f15 100644 --- a/systems_design/availability/index.html +++ b/systems_design/availability/index.html @@ -364,7 +364,19 @@
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