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# ngrep -W byline -d eth0 port 5060 | |
Capture to file | |
# ngrep -W byline -d eth0 port 5060 -O capture_file | |
Show INVITE only | |
# ngrep -W byline -d eth0 INVITE | |
HTTP Packets | |
# ngrep -t '^(GET|POST) ' 'src host 12.13.14.15 and tcp and dst port 80' |
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# sox SuperMario.wav -r 8000 -U -c1 SuperMarioUL.wav |
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## Configure eth0 | |
# | |
# vi /etc/sysconfig/network-scripts/ifcfg-eth0 | |
DEVICE="eth0" | |
NM_CONTROLLED="yes" | |
ONBOOT=yes | |
HWADDR=A4:BA:DB:37:F1:04 | |
TYPE=Ethernet | |
BOOTPROTO=static |
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function ping($host, $timeout = 1) { | |
/* ICMP ping packet with a pre-calculated checksum */ | |
$package = "\x08\x00\x7d\x4b\x00\x00\x00\x00PingHost"; | |
$socket = socket_create(AF_INET, SOCK_RAW, 1); | |
socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array('sec' => $timeout, 'usec' => 0)); | |
socket_connect($socket, $host, null); | |
$ts = microtime(true); | |
socket_send($socket, $package, strLen($package), 0); | |
if (socket_read($socket, 255)) { | |
$result = microtime(true) - $ts; |
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Install yajl2 | |
$cd ~ | |
$git clone https://github.com/lloyd/yajl.git | |
$cd yajl/ | |
$sudo ./configure | |
$sudo make | |
$sudo make install | |
$sudo ln -s /usr/local/lib/libyajl_s.a /usr/lib64/libyajl_s.a |
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$./configure --with-yajl=/usr/local/include/yajl | |
checking for a BSD-compatible install... /usr/bin/install -c | |
checking whether build environment is sane... yes | |
checking for a thread-safe mkdir -p... /bin/mkdir -p | |
checking for gawk... gawk | |
checking whether make sets $(MAKE)... yes | |
checking whether make supports nested variables... yes | |
checking for style of include used by make... GNU | |
checking for gcc... gcc |
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On Master: | |
SELECT | |
client_addr, | |
sent_offset - ( | |
replay_offset - (sent_xlog - replay_xlog) * 255 * 16 ^ 6 ) AS byte_lag | |
FROM ( | |
SELECT | |
client_addr, | |
('x' || lpad(split_part(sent_location, '/', 1), 8, '0'))::bit(32)::bigint AS sent_xlog, |
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The following are list of tools i use. | |
Encryption: | |
ShadowCrypt | |
Programming IDEs: | |
PHPStorm | |
IntelliJ | |
RStudio/Revolution R Open | |
RegEx Buddy |
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Firmwares: | |
http://downloads.polycom.com/voice/voip/sip_sw_releases_matrix.html | |
http://downloads.polycom.com/voice/voip/uc_sw_releases_matrix.html | |
Configuration: | |
http://etel.wiki.oreilly.com/wiki/index.php/Dynamic_Phone_Provisioning_with_res_phoneprov_and_TFTP | |
https://freeswitch.org/confluence/display/FREESWITCH/Polycom+Configuration | |
Reset Codes: | |
1. Find and write down the MAC id of the phone you want to reset. You can typically find it on the back of the phone. If the label on the back of the phone with the MAC id is removed, you can find it by pressing Menu, Status, Network, Ethernet. |
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1. Install composer (http://getcomposer.org/doc/00-intro.md#installation) | |
2. php composer.phar create-project slim/slim-skeleton server | |
3. npm install -g yo grunt-cli bower | |
4, npm install -g generator-angular | |
5. yo angular | |
6. bower install angular-bootstrap --save | |
7. edit bowerrc to make sure it points to the correct directory | |
8. cd server | |
9. php composer.phar slim-json-api |