From 74e4e66faf3f8dcf58ccfe6d9714c447e9ffa8ab Mon Sep 17 00:00:00 2001
From: kneutron <50146127+kneutron@users.noreply.github.com>
Date: Wed, 6 Oct 2021 21:13:44 -0500
Subject: [PATCH] Add files via upload

---
 OSX/gig-ether--speedup--osx.sh | 49 ++++++++++++++++++++++++++++++++++
 OSX/osx-restart-sshd.sh        |  3 +++
 2 files changed, 52 insertions(+)
 create mode 100644 OSX/gig-ether--speedup--osx.sh
 create mode 100644 OSX/osx-restart-sshd.sh

diff --git a/OSX/gig-ether--speedup--osx.sh b/OSX/gig-ether--speedup--osx.sh
new file mode 100644
index 0000000..37e4ff3
--- /dev/null
+++ b/OSX/gig-ether--speedup--osx.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# http://fasterdata.es.net/host-tuning/linux/
+
+# REF: https://www.atto.com/software/files/other/osx_fastframe_readme_v7_20.pdf
+
+# REF: https://hints.macworld.com/article.php?story=20060616112919669 ## OLD
+#  If you would like these changes to be preserved across reboots you can edit /etc/sysctl.conf.
+# 
+
+sysctl -w kern.ipc.maxsockbuf=4194304 
+# will not go higher in OSX due to system limitations.
+
+sysctl -w net.inet.tcp.sendspace=2097152
+sysctl -w net.inet.tcp.recvspace=2097152
+sysctl -w net.inet.tcp.maxseg_unacked=32
+sysctl -w net.inet.tcp.delayed_ack=2
+sysctl -w kern.maxnbuf=60000
+sysctl -w kern.maxvnodes=280000
+sysctl -w net.inet.tcp.sack=1
+
+
+# determine interfaces found OTF xxx 2017.0319
+#for e in `ifconfig -a |grep HW |awk '{print $1}'`; do
+#  ifconfig $e txqueuelen 5000
+#ifconfig eth1 txqueuelen 5000
+#done
+
+#http://datatag.web.cern.ch/datatag/howto/tcp.html
+#sysctl sys.net.core.netdev_max_backlog=2000 # unknown
+##sysctl net.ipv4.tcp_sack=0 
+
+ifconfig -a > /var/root/ifconfig-a.txt
+chmod 500 /var/root/ifconfig-a.txt
+
+exit;
+
+ ifconfig en0  mediaopt full-duplex
+[ davesimac513.local (scrn=1) ]
+
+# ifconfig en0
+en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
+        options=10b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV>
+        ether 3c:07:54:64:eb:10
+        inet6 fe80::4f2:bbae:d379:1882%en0 prefixlen 64 secured scopeid 0x6
+        inet 10.9.13.4 netmask 0xff000000 broadcast 10.255.255.255
+        nd6 options=201<PERFORMNUD,DAD>
+        media: autoselect (1000baseT <full-duplex,flow-control,energy-efficient-ethernet>)
+        status: active
diff --git a/OSX/osx-restart-sshd.sh b/OSX/osx-restart-sshd.sh
new file mode 100644
index 0000000..c44cb4a
--- /dev/null
+++ b/OSX/osx-restart-sshd.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+launchctl stop com.openssh.sshd ; launchctl start com.openssh.sshd