Initial commit

LICENSING.txt

@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>

README.md

@@ -0,0 +1,22 @@
+TC Slowify
+==========
+
+Shell scripts to help you simulate slow network connections
+-----------------------------------------------------------
+
+*Requirements (generally included in Ubuntu, Fedora, OpenSuse, Gentoo, Debian, Mandriva, etc)*:
+- tc (a Linux command, part of the iproute2 package)
+- netem (included in the 2.6 Linux kernel)
+
+*Usage*:
+
+- ./apply.sh
+  - Applies limiting rules; prompts you to select an interface name, rate, and latency
+- ./remove.sh
+  - Removes limiter from that interface
+- ./status.sh
+  - Shows rules on that interface (sometimes other rules may already exist, that's ok) 
+
+*License*:
+
+The Unlicense, see LICENSING.txt

apply.sh

@@ -0,0 +1,20 @@
+# TC Slowify
+# Shell scripts to help you simulate slow network connections
+# By Will Bradley
+# Thanks to https://gist.github.com/trongthanh/1196596
+# Released via the Unlicense (see LICENSING.txt)
+
+echo ""
+read -e -i "lo" -p "Interface name to limit (ex: `ls -C /sys/class/net | sed 's/\s\+/, /g'`): " ifname
+read -e -i "56kbps" -p "Limit amount (including units, ex: 56kbps): " limit
+read -e -i "200ms" -p "Latency amount (including units, ex: 200ms): " latency
+
+sudo tc qdisc add dev $ifname root handle 1: htb default 12 
+sudo tc class add dev $ifname parent 1:1 classid 1:12 htb rate $limit ceil $limit
+sudo tc qdisc add dev $ifname parent 1:12 netem delay $latency
+
+echo ""
+echo "Set limiter on $ifname to:"
+echo ""
+
+sudo tc -s qdisc ls dev $ifname

remove.sh

@@ -0,0 +1,17 @@
+# TC Slowify
+# Shell scripts to help you simulate slow network connections
+# By Will Bradley
+# Thanks to https://gist.github.com/trongthanh/1196596
+# Released via the Unlicense (see LICENSING.txt)
+
+
+echo ""
+read -e -i "lo" -p "Interface name to un-limit (ex: `ls -C /sys/class/net | sed 's/\s\+/, /g'`): " ifname
+
+sudo tc qdisc del dev $ifname root
+
+echo ""
+echo "Removed limiter; $ifname is now:"
+echo ""
+
+sudo tc -s qdisc ls dev $ifname

status.sh

@@ -0,0 +1,8 @@
+# TC Slowify
+# Shell scripts to help you simulate slow network connections
+# By Will Bradley
+# Thanks to https://gist.github.com/trongthanh/1196596
+# Released via the Unlicense (see LICENSING.txt)
+
+
+sudo tc -s qdisc ls dev eth3