Gem install can throw a ssl exception. This is a solution on Stackoverflow

Summary of the remedy:

1. Download

https://raw.githubusercontent.com/rubygems/rubygems/master/lib/rubygems/ssl_certs/AddTrustExternalCARoot-2048.pem

2. Find out installation location

    C:\>gem which rubygems
    C:/Ruby21/lib/ruby/2.1.0/rubygems.rb

3. Install the file

Then just copy the .pem file into ../2.1.0/rubygems/ssl_certs/

My cygwin does not have wget or curl preinstalled. So to download a file from internet I do

    lynx -source url  > file.txt

I want to restart windows ec2 instance. MS forces me to ‘update and restart’. There is no way to bypass update

Windows is not suitable for datacenter.

Who will design a tool for IT professional this way? It is a pure maddness

I want to dump some output from powershell. It is a very common task but somehow Powershell takes the liberty to truncate the output based on arbitrary condition.

Apparently when I am testing the powershell script I use a resized and large DOS prompt for my work.

Use of ft -autoresise prints the full string of the Commandline field in one line. It is what I need. wrap or nowrap does not produce desired result.

After testing is done, I deploy the script to run as a background task.

Now powershell decides it wants to truncate the commandline field. Now I am getting some “c:\some\path…” instead of the full path of the executables.

Utter maddenss. A waste of everyone’s time!

Solution:

    ft -AutoSize | out-string -width 4096 

Got this crazy error message:

    /opt/sensu/embedded/lib/ruby/2.0.0/net/smtp.rb:950:in `check_response': 454 4.7.0 TLS not available due to local problem (Net::SMTPServerBusy)
            from /opt/sensu/embedded/lib/ruby/2.0.0/net/smtp.rb:919:in `getok'
            from /opt/sensu/embedded/lib/ruby/2.0.0/net/smtp.rb:819:in `starttls'
            from /opt/sensu/embedded/lib/ruby/2.0.0/net/smtp.rb:561:in `do_start'
            from /opt/sensu/embedded/lib/ruby/2.0.0/net/smtp.rb:519:in `start'
            from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/mail-2.6.3/lib/mail/network/delivery_methods/smtp.rb:112:in `deliver!'
            from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/mail-2.6.3/lib/mail/message.rb:2141:in `do_delivery'
            from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/mail-2.6.3/lib/mail/message.rb:238:in `deliver'
            from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/mail-2.6.3/lib/mail/mail.rb:140:in `deliver'
            from /etc/sensu/handlers/notification/mailer.rb:138:in `block in handle'
            from /opt/sensu/embedded/lib/ruby/2.0.0/timeout.rb:66:in `timeout'
            from /opt/sensu/embedded/lib/ruby/2.0.0/timeout.rb:97:in `timeout'
            from /etc/sensu/handlers/notification/mailer.rb:137:in `handle'
            from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/sensu-plugin-1.1.0/lib/sensu-handler.rb:55:in `block in <class:Handler>'

After checking the mail log, I found these errors:

    Mar  1 04:19:20 ip-172-31-37-216 postfix/smtp[7642]: warning: TLS library problem: error:02001002:system library:fopen:No such file or directory:bss_file.c:169:fopen('/etc/postfix/cacert.pem','r'):
    Mar  1 04:19:20 ip-172-31-37-216 postfix/smtp[7642]: warning: TLS library problem: error:2006D080:BIO routines:BIO_new_file:no such file:bss_file.c:172:
    Mar  1 04:19:20 ip-172-31-37-216 postfix/smtp[7642]: warning: TLS library problem: error:0B084002:x509 certificate routines:X509_load_cert_crl_file:system lib:by_file.c:274:

So here is a solution:

 sudo openssl req -new -x509 -nodes -out cacert.pem -keyout cacert.pem -days 3650