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When running certain commands like ssh or git within Terminal on OSX you may get notices like the one below, which can be annoying. | |
perl: warning: Setting locale failed. | |
perl: warning: Please check that your locale settings: | |
LANGUAGE = (unset), | |
LC_ALL = (unset), | |
LANG = "en_US.UTF-8" | |
are supported and installed on your system. | |
perl: warning: Falling back to the standard locale ("C"). | |
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@virgo:~ $ sudo tcpdump -vvvv -ttt -i eth1 icmp6 and 'ip6[40] = 134' | |
00:00:00.000000 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 200) fe80::b675:eff:fefa:1cb > ip6-allnodes: [icmp6 sum ok] ICMP6, router advertisement, length 200 | |
hop limit 0, Flags [managed, other stateful], pref medium, router lifetime 1800s, reachable time 0s, retrans time 0s | |
source link-address option (1), length 8 (1): b4:75:0e:fa:01:cb | |
0x0000: b475 0efa 01cb | |
mtu option (5), length 8 (1): 1280 | |
0x0000: 0000 0000 0500 | |
prefix info option (3), length 32 (4): 2a01:ffff:43f::/64, Flags [onlink, auto], valid time 7200s, pref. time 1800s | |
0x0000: 40c0 0000 1c20 0000 0708 0000 0000 2a01 | |
0x0010: ffff 043f 0000 0000 0000 0000 0000 |
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#!/bin/sh -e | |
hostname=$1 | |
device=$2 | |
file=$HOME/.dynv6.addr6 | |
[ -e $file ] && old=`cat $file` | |
if [ -z "$hostname" -o -z "$token" ]; then | |
echo "Usage: token=<your-authentication-token> [netmask=64] $0 your-name.dynv6.net [device]" | |
exit 1 | |
fi |
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val reasonFiltered: Option[String] = { | |
val sourceFileString = sourceFile.getOrElse("").toLowerCase | |
if ("localhost" == reportHost || "localhost" == blockedHost | |
|| "127.0.0.1" == reportHost || "127.0.0.1" == blockedHost) { | |
Some("localhost") | |
} else if (sourceFileString.startsWith("resource://") | |
|| blockedUri.contains("addons.mozilla.org%22%3B%0Avar%20c%3D%22FastestFox")) { | |
Some("firefox_extension") | |
} else if (sourceFileString.startsWith("chromenull://") || blockedUri.startsWith("chromenull://")) { |
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// | |
// AppDelegate.swift | |
// pushtest | |
// | |
// Created by sawapi on 2014/06/08. | |
// Copyright (c) 2014年 sawapi. All rights reserved. | |
// | |
// iOS8用 | |
import UIKit |
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-accesscode - | |
-batterytestmode - rapidly cycle battery percentages for testing | |
-bigpicture - Start in Steam Big Picture mode | |
-browser-offline - | |
-cafeapplaunch - Launch apps in a cyber cafe context | |
-candidates - Show libjingle candidates for local connection as they are processed | |
-ccsyntax - Spew details about the localized strings we load | |
-cef-allow-browser-underlay - Allow webhelper to create BrowserView underlays | |
-cef-delaypageload - Enable early-out for known page loads | |
-cef-disable-breakpad - disables breakpad in crash dumps |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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# | |
# Wide-open CORS config for nginx | |
# | |
location / { | |
if ($request_method = 'OPTIONS') { | |
add_header 'Access-Control-Allow-Origin' '*'; | |
# |
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