When hosting our web applications, we often have one public IP
address (i.e., an IP address visible to the outside world)
using which we want to host multiple web apps. For example, one
may wants to host three different web apps respectively for
example1.com, example2.com, and example1.com/images on
the same machine using a single IP address.
How can we do that? Well, the good news is Internet browsers
| #!/usr/bin/env perl | |
| use Mojolicious::Lite; | |
| use MongoDB; | |
| use MongoDB::OID; | |
| my $mongo_port = shift || 27017; | |
| helper 'mongo' => sub { | |
| my ($self, $name) = @_; | |
| my $host = 'localhost:' . $mongo_port; |
| package main | |
| import ( | |
| "io" | |
| "net/http" | |
| "os/exec" | |
| ) | |
| var ( | |
| BUF_LEN = 1024 |
| // Lexer for the TableGen language. | |
| package main | |
| import ( | |
| "fmt" | |
| "io/ioutil" | |
| "log" | |
| "time" | |
| "unicode/utf8" | |
| ) |
| git branch -m old_branch new_branch # Rename branch locally | |
| git push origin :old_branch # Delete the old branch | |
| git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote |
| # alias to edit commit messages without using rebase interactive | |
| # example: git reword commithash message | |
| reword = "!f() {\n GIT_SEQUENCE_EDITOR=\"sed -i 1s/^pick/reword/\" GIT_EDITOR=\"printf \\\"%s\\n\\\" \\\"$2\\\" >\" git rebase -i \"$1^\";\n git push -f;\n}; f" | |
| # git alias to tag and push a version | |
| tagpush = "!f(){ t=${1#v}; git tag v$t && git push origin v$t; }; f" | |
| # git alias to download single file from a repo in format of user/repo file | |
| fetch-file = "!f() { out=\"${4:-$(basename \"$2\")}\"; if gh api \"repos/$1/contents/$2\" ${3:+-f ref=$3} --jq '.content' 2>/dev/null | base64 --decode > \"$out\" 2>/dev/null; then echo \"Downloaded $2 → $out\"; else echo \"Failed\"; rm -f \"$out\"; fi; }; f" |
I have spent quite a bit of time figuring out automounts of NFS shares in OS X...
Somewhere along the line, Apple decided allowing mounts directly into /Volumes should not be possible:
/etc/auto_master (see last line):
#
# Automounter master map
#
+auto_master # Use directory service
| #!/bin/bash | |
| # installs plenv, perl, carton, cpanminus, sets up environment in .bash_profile | |
| # from https://github.com/tokuhirom/plenv#readme | |
| PLENV_PERL_VERSION='5.18.1' | |
| if [[ -n "$PERL_MB_OPT" ]]; then | |
| echo "You must unset your local::lib environment variables first" |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000| # | |
| # Open 10k concurrent WebSocket connections with the client and server running | |
| # in the same process and perform 10k WebSocket message roundtrips | |
| # | |
| # Tested on OS X 10.9.2 (MacBook Air) with Perl 5.18.2 and EV 4.17 (kqueue) | |
| # | |
| # 560.9MB memory usage, 0% CPU usage once roundtrips are finished after 36s | |
| # (with all 20k sockets still open) | |
| # | |
| # Get the latest version of Mojolicious from http://github.com/kraih/mojo |
