Ruby: rubygems-update

$ sudo gem update

$ sudo gem install rubygems-update

    Fetching: rubygems-update-2.4.5.gem (100%)
    Successfully installed rubygems-update-2.4.5
    Parsing documentation for rubygems-update-2.4.5
    Installing ri documentation for rubygems-update-2.4.5
    Done installing documentation for rubygems-update after 1 seconds
    1 gem installed

$ sudo update_rubygems
    RubyGems 2.4.5 installed
    Parsing documentation for rubygems-2.4.5
    Installing ri documentation for rubygems-2.4.5

$ sudo gem update

Rails: Passenger ver.4.0.57 Released

Passenger ver .4.0.56 on ruby 2.2.0 , don't work , because of BUG.
Passenger ver.4.0.57 on ruby 2.2.0 , can WORK. Success.

$ sudo rbenv global 2.2.0

$ sudo gem install passenger
   Fetching: passenger-4.0.57.gem (100%)
   Building native extensions.  This could take a while...
   Successfully installed passenger-4.0.57
   Parsing documentation for passenger-4.0.57
   Installing ri documentation for passenger-4.0.57
   Done installing documentation for passenger after 10 seconds
   1 gem installed

$ sudo passenger-install-apache2-module

$ cd /☆☆/rails_application
$ bundle update

Tor: Deny from tor ipaddress

When you use Tor Browser , 

you can't access https://hhoshina.info/ . (Deny from tor ipaddress .)

GoLang: Use Mysql

  1 package main                                                                                      
  2
 21 import "fmt"
 22 import "log"
 23 import _ "github.com/go-sql-driver/mysql"
 24 import "database/sql"
 25
 26
 29 func main() {
 30     db, _ := sql.Open("mysql", "☆☆:☆☆☆@/☆☆☆☆")
 31
 32     var name string
 33
 34     if err := db.QueryRow("SELECT ipaddress FROM geoips WHERE id = ☆☆").Scan(&name); err != nil {
 35         log.Fatal(err)
 36     }

 37
 38     fmt.Println(name)
 39 }