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Monthly Archives: April 2021

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  3. April
Read more about the article HOW TO MEASURE NETWORK SPEED BETWEEN SERVERS IN LINUX?

HOW TO MEASURE NETWORK SPEED BETWEEN SERVERS IN LINUX?

  • Post author:mreddy239
  • Post published:April 26, 2021
  • Post category:Network
  • Post comments:0 Comments

On receiving server B: madhu@192.168.1.100:~$ while true; do netcat -vvlnp 5656 > /dev/null; doneListening on [0.0.0.0] (family 0, port 5656)Connection from [192.168.1.100] port 5656 [tcp/*] accepted (family 2, sport 53714)Listening…

Continue ReadingHOW TO MEASURE NETWORK SPEED BETWEEN SERVERS IN LINUX?
Read more about the article How do you upgrade vCenter appliance 6.7 to 7.0?

How do you upgrade vCenter appliance 6.7 to 7.0?

  • Post author:mreddy239
  • Post published:April 14, 2021
  • Post category:VMware
  • Post comments:0 Comments

1) Download the vCSA 7.0 ISO and mount it on any Windows system. 2) Once the ISO is mounted, navigate to 'vcsa-ui-installer' -> 'win32,' double-click 'installer.exe,' and select 'Upgrade.' 3)…

Continue ReadingHow do you upgrade vCenter appliance 6.7 to 7.0?
Read more about the article why do we need to use nice and ionice?

why do we need to use nice and ionice?

  • Post author:mreddy239
  • Post published:April 12, 2021
  • Post category:Linux
  • Post comments:0 Comments

Schedule the Linux process CPU priority with nice? By default, every process is assigned the same CPU scheduling priority level. Consequently, the kernel strives to allocate a fair amount of…

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Read more about the article What’s the difference between ENTRYPOINT  and CMD in a Dockerfile?

What’s the difference between ENTRYPOINT and CMD in a Dockerfile?

  • Post author:mreddy239
  • Post published:April 7, 2021
  • Post category:Docker
  • Post comments:0 Comments

About CMD: The Docker CMD defines the default executable of a Docker image. The CMD instruction is used only when no arguments are added to the run command while starting…

Continue ReadingWhat’s the difference between ENTRYPOINT and CMD in a Dockerfile?
Read more about the article Why do we need an SRV DNS record?

Why do we need an SRV DNS record?

  • Post author:mreddy239
  • Post published:April 5, 2021
  • Post category:DNS
  • Post comments:0 Comments

For explanation purposes, let's consider a practical example involving an LDAP server and a client. Usually, when configuring an LDAP client, we specify the direct address—either the LDAP server's IP…

Continue ReadingWhy do we need an SRV DNS record?
Read more about the article Adding SPF record to the domain for successful email delivery

Adding SPF record to the domain for successful email delivery

  • Post author:mreddy239
  • Post published:April 3, 2021
  • Post category:Mail
  • Post comments:0 Comments

If your company is using the paid version of Gmail for business and wants to have email IDs in the format of username@companydomain.com, then you need to add the 'SPF'…

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Read more about the article 4 reasons why email’s go to SPAM?

4 reasons why email’s go to SPAM?

  • Post author:mreddy239
  • Post published:April 2, 2021
  • Post category:Mail
  • Post comments:0 Comments

Are your emails going to the spam folder? Customers are complaining that they have not received your emails, and some have mentioned that although they received the email, it ended…

Continue Reading4 reasons why email’s go to SPAM?
Read more about the article Why is SPF important for email delivery?

Why is SPF important for email delivery?

  • Post author:mreddy239
  • Post published:April 2, 2021
  • Post category:Mail
  • Post comments:0 Comments

The Sender Policy Framework (SPF) Record is created to prevent applications or users that you don't trust from sending emails on behalf of your domain. Mail delivery process with SPF…

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Read more about the article Look at the file system resize progress with resize2fs

Look at the file system resize progress with resize2fs

  • Post author:mreddy239
  • Post published:April 2, 2021
  • Post category:Linux
  • Post comments:0 Comments

lvextend -L +100G /dev/sda2 resize2fs -p /dev/sda2 -p option ---> Prints out a percentage completion bars for each resize2fs operation, so that the user can keep track of what the program is doing…

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Read more about the article Python2.6 dependency for yum in CentOS 6, RHEL 6?

Python2.6 dependency for yum in CentOS 6, RHEL 6?

  • Post author:mreddy239
  • Post published:April 2, 2021
  • Post category:Linux
  • Post comments:0 Comments

CentOS 6 ships with Python 2.6.6 and relies on that specific version. Take caution not to replace it, as 'yum' depends on Python2.6. It's best to compile and install a…

Continue ReadingPython2.6 dependency for yum in CentOS 6, RHEL 6?

ARCHIVES

TOP 5 TRENDING POSTS

  • VMware PowerCLI update root password in all ESXi Hosts?
  • Look at the file system resize progress with resize2fs
  • About PermitRootLogin and PasswordAuthentication in the sshd_config file?
  • How do you upgrade vCenter appliance 6.7 to 7.0?
  • How to use custom SSL certificates in vCenter?
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