diff --git a/zsh/aliases.zsh b/zsh/aliases.zsh
index 71c2a85..408e122 100644
--- a/zsh/aliases.zsh
+++ b/zsh/aliases.zsh
@@ -3,7 +3,6 @@
 #
 
 # System
-alias o="open"
 alias s="ssh"
 alias ec="echo"
 alias ls="ls -B"
@@ -41,15 +40,11 @@ if (( $+commands[flutter] )); then
   alias fl="flutter"
 fi
 
-# Flush DNS cache
-alias flush_dns="dscacheutil -flushcache"
-
 # Misc.
 alias weechat="TERM=screen-256color weechat-curses"
 alias slashdot="ab -kc 50 -t 300"
 alias digg="ab -kc 50 -t 30"
 alias fact="elinks -dump randomfunfacts.com | sed -n '/^| /p' | tr -d \|"
-alias netlisteners='lsof -i -Pn | grep LISTEN'
 alias servethis="python -c 'import SimpleHTTPServer; SimpleHTTPServer.test()'"
 alias lr='ls -R | grep ":$" | sed -e '\''s/:$//'\'' -e '\''s/[^-][^\/]*\//--/g'\'' -e '\''s/^/   /'\'' -e '\''s/-/|/'\'''
 alias fku="fuck you"
@@ -80,11 +75,6 @@ mcd() {
   mkdir -p "$1" && cd "$1";
 }
 
-# Open man page in Preview.
-pman () {
-  man -t "${1}" | open -f -a /Applications/Preview.app
-}
-
 # Extract most common archives with single command.
 #  - from: http://alias.sh/extract-most-know-archives-one-command
 extract() {
diff --git a/zsh/linux.zsh b/zsh/linux.zsh
index c72013a..f525e51 100644
--- a/zsh/linux.zsh
+++ b/zsh/linux.zsh
@@ -2,5 +2,8 @@
 # Linux specific setup
 #
 
+# Aliases
+alias o="xdg-open"
+
 # Ensure 256 color support in Linux
 export TERM="xterm-256color"
diff --git a/zsh/macos.zsh b/zsh/macos.zsh
index ef05648..8a6022c 100644
--- a/zsh/macos.zsh
+++ b/zsh/macos.zsh
@@ -2,6 +2,17 @@
 # macOS Specific
 #
 
+# Aliases
+alias o="open"
+
+# Flush DNS cache
+alias flush_dns="dscacheutil -flushcache"
+
+# Open man page in Preview.
+pman () {
+  man -t "${1}" | open -f -a /Applications/Preview.app
+}
+
 # Fix wifi issues on OS X 10.10.x Yosemite.
 #  - from: https://medium.com/@mariociabarra/wifried-ios-8-wifi-performance-issues-3029a164ce94
 alias fix_wifi="sudo ifconfig awdl0 down"