iptables -A INPUT -i eth0 -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 80 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 443 -j ACCEPT
iptables -A INPUT -i eth0 -j DROP

.directive('useFormData', function ($parse) {
    return {
      link: function (scope, element, attrs) {
        if (attrs.ngModel && attrs.value) {
          $parse(attrs.ngModel).assign(scope, attrs.value);
        }
      }
    };
});
<input type="text" ng-model="title" value="default value" use-form-data />

.directive('useFormData', function ($parse) {
 return {
  link: function (scope, element, attrs) {
   if (attrs.ngModel && element[0].defaultValue) {
    $parse(attrs.ngModel).assign(scope, element[0].defaultValue);
   }
  }
 };
});

<?php
$result = (new \MessageFormatter('ru-RU', '{n, spellout}'))->format(['n' => 321]);
echo $result;  // триста двадцать один

$result = (new \MessageFormatter('ru-RU', '{n, spellout,%spellout-cardinal-feminine}'))->format(['n' => 321]);
echo $result; // триста двадцать одна

ssh -fN -L 6666:localhost:27017 user@host

sudo apt-get install openjdk*  
sudo apt-get install icedtea-plugin

DELETE b FROM tbl
  LEFT JOIN rel ON rel.id = tbl.fileid 
      WHERE rel.id IS NULL

DELETE FROM tbl 
 WHERE NOT EXISTS(SELECT NULL
                    FROM rel
                   WHERE rel.id = tbl.fileid)

DELETE FROM tbl
 WHERE tbl.fileid NOT IN (SELECT rel.id 
                        FROM rel)

/showplaces      показывает с каких устройств вы подключены
/remotelogout    выход со всех устройств кроме текущего (push уведомления тоже отключаются)

libfdk_aac > libfaac > libvo_aacenc

pkg install pecl-intl

<?php
$formatter = new IntlDateFormatter('ru_RU', IntlDateFormatter::FULL, IntlDateFormatter::FULL);
$formatter->setPattern('d MMMM YYYY, HH:mm');
echo $formatter->format(new DateTime('2015-01-01 01:01:01')); //1 января 2015, 01:01

# flash bios
MegaCli -adpfwflash -f /scripts/firmware/lsi_imr_fw.rom -aALL
MegaCli -adpfwflash -f imr_fw.rom -NoVerChk -aAll
MegaCli -adpfacdefset -aALL # reset to factory default

# controller info
MegaCli -AdpAllinfo -aALL
MegaCli -PDGetNum -a0 # nubmer of discs
MegaCli -PDInfo -PhysDrv [64:0] -aALL
MegaCli -PDMakeJBOD -PhysDrv[64:4]

# clear controller config to defaults
MegaCli -CfgClr -aALL

# delete all
MegaCli -CfgLdDel -LALL -aALL

# create raid
MegaCli -CfgLdAdd -r5 [64:0, 64:1, 64:2, 64:3] -a0
MegaCli -CfgLdAdd -r0 [64:4,64:5,64:6,64:7] -a0

# get free devices
MegaCli -PDList -a0 | grep -e '^Enclosure Device ID:' -e '^Slot Number:'

# get raid info
MegaCli -LDInfo -Lall -aALL
MegaCli -PDMakeGood -PhysDrv[64:4] -force -aALL > /dev/null
MegaCli -PDMakeGood -PhysDrv[64:5] -force -aALL > /dev/null
MegaCli -PDMakeGood -PhysDrv[64:6] -force -aALL > /dev/null
MegaCli -PDMakeGood -PhysDrv[64:7] -force -aALL > /dev/null
MegaCli -PDMakeJBOD -PhysDrv[64:4,64:5,64:6,64:7] -a0
MegaCli -CfgLdAdd -r0 [64:4,64:5,64:6,64:7] -a0
MegaCli -AdpEventLog -GetEvents -f logfile -aALL # Dump all events from the adapters event log to a file named logfile
MegaCli -PDList -aAll # Dump information about all Phsyical Disks
MegaCli -LDInfo -LAll -aAll # Dump information about all Logical Disks on all adapters
MegaCli -LdPdInfo -aAll # Dump information of all logical and physical disks on all known adapters
MegaCli -AdpSetProp -EnableJBOD 1 -aALL
MegaCli -CfgDsply -aAll

# adapter diagnostic
MegaCli -AdpDiag -a0

Controller information
MegaCli -AdpAllInfo -aALL
MegaCli -CfgDsply -aALL
MegaCli -AdpEventLog -GetEvents -f events.log -aALL && cat events.log

Enclosure information
MegaCli -EncInfo -aALL

Virtual drive information
MegaCli -LDInfo -Lall -aALL

Physical drive information
MegaCli -PDList -aALL
MegaCli -PDInfo -PhysDrv [E:S] -aALL

Battery backup information
MegaCli -AdpBbuCmd -aALL

Controller management

Silence active alarm
MegaCli -AdpSetProp AlarmSilence -aALL

Disable alarm
MegaCli -AdpSetProp AlarmDsbl -aALL

Enable alarm
MegaCli -AdpSetProp AlarmEnbl -aALL

Physical drive management

Set state to offline
MegaCli -PDOffline -PhysDrv [E:S] -aN

Set state to online
MegaCli -PDOnline -PhysDrv [E:S] -aN

Mark as missing
MegaCli -PDMarkMissing -PhysDrv [E:S] -aN

Prepare for removal
MegaCli -PdPrpRmv -PhysDrv [E:S] -aN

Replace missing drive
MegaCli -PdReplaceMissing -PhysDrv [E:S] -ArrayN -rowN -aN

Rebuild drive
MegaCli -PDRbld -Start -PhysDrv [E:S] -aN
MegaCli -PDRbld -Stop -PhysDrv [E:S] -aN
MegaCli -PDRbld -ShowProg -PhysDrv [E:S] -aN

Clear drive
MegaCli -PDClear -Start -PhysDrv [E:S] -aN
MegaCli -PDClear -Stop -PhysDrv [E:S] -aN
MegaCli -PDClear -ShowProg -PhysDrv [E:S] -aN

MegaCli -PDMakeGood -PhysDrv[E:S] -aN
This changes drive in state Unconfigured-Bad to Unconfigured-Good.

Set the drive offline, if it is not already offline due to an error
MegaCli -PDOffline -PhysDrv [E:S] -aN

Mark the drive as missing
MegaCli -PDMarkMissing -PhysDrv [E:S] -aN

Prepare drive for removal
MegaCli -PDPrpRmv -PhysDrv [E:S] -aN

If you’re using hot spares then the replaced drive should become your new hot spare drive:
MegaCli -PDHSP -Set -PhysDrv [E:S] -aN

In case you’re not working with hot spares, you must re-add the new drive to your RAID virtual drive and start the rebuilding
MegaCli -PdReplaceMissing -PhysDrv [E:S] -ArrayN -rowN -aN
MegaCli -PDRbld -Start -PhysDrv [E:S] -aN
MegaCli -CfgLdAdd -r0 [0:1, 0:1] -a0
MegaCli -LDInfo -Lall -aALL
# View all controleler informations
MegaCli -AdpAllInfo -aAll

MegaCli -LDSetProp CachedBadBBU -LALL -aALL
Delete all devices
MegaCli -CfgLdDel -LALL -aALL

MegaCli -CfgLdAdd -r1 [252:0,252:1] -a0

MegaCli -CfgLdAdd -r10 [252:0,252:1,252:2,252:3] -a0

# create RAID5
MegaCli -CfgLdAdd -r5 [64:0,64:1,64:2,64:3] -a0

# create RAID10
MegaCli -CfgSpanAdd -r10 -Array0[64:0,64:1] -Array1[64:2,64:3] -a0

# create RAID10
MegaCli -AdpSetProp -EnableJBOD 1

# Enable disks cache
MegaCli -LDSetProp EnDskCache -LAll -aAll

# Force flash
MegaCli -adpfwflash -f ./12.12.0-0111.rom -NoVerChk -a0

# load controller defauts
MegaCli -adpfacdefset -aALL

Ctrl+a c	Create new window
Ctrl+a k	Kill the current window / session
Ctrl+a w	List all windows
Ctrl+a 0-9	Go to a window numbered 0 9, use Ctrl+a w to see number
Ctrl+a Ctrl+a	Toggle / switch between the current and previous window
Ctrl+a S	Split terminal horizontally into regions and press Ctrl+a c to create new window there
Ctrl+a :resize	Resize region
Ctrl+a :fit	Fit screen size to new terminal size. You can also hit Ctrl+a F for the the same task
Ctrl+a :remove	Remove / delete region. You can also hit Ctrl+a X for the same taks
Ctrl+a tab	Move to next region
Ctrl+a D (Shift-d)	Power detach and logout
Ctrl+a d	Detach but keep shell window open
Ctrl-a Ctrl-\	Quit screen
Ctrl-a ?	Display help screen i.e. display a list of commands

<script type="application/json" id="json">{"json_data":"here"}</script>
<script>
$(function(){
    var json = JSON.parse($('#json').text());
});
</script>

firewall_enable="YES"
firewall_quiet="YES"
firewall_type="workstation"
firewall_myservices="22 80 443"
firewall_allowservices="any"
firewall_logdeny="NO"

sudo service ipfw start

{
  "require": {
    "jonnyw/php-phantomjs": "3.*",
    "symfony/dom-crawler": "3.*",
    "symfony/css-selector": "3.*"
  },
  "config": {
    "bin-dir": "bin"
  },
  "scripts": {
    "post-install-cmd": [
      "PhantomInstaller\\Installer::installPhantomJS"
    ],
    "post-update-cmd": [
      "PhantomInstaller\\Installer::installPhantomJS"
    ]
  }
}

php composer.phar install

<?php
require __DIR__ . '/vendor/autoload.php';

$client = \JonnyW\PhantomJs\Client::getInstance();
$request = $client->getMessageFactory()->createRequest('http://superdeals.aliexpress.com/en?spm=2114.11010108.21.1.v65LIL', 'GET');
$response = $client->getMessageFactory()->createResponse();
$client->send($request, $response);
$html = $response->getContent();

$crawler = new \Symfony\Component\DomCrawler\Crawler($html);
$div = $crawler->filter('div.pro-msg');
if($div) {
    echo $div->first()->text();
}

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netstat -tunlp | grep 8080

<?php
function getRows($file) {
    $handle = fopen($file, 'rb');
    if ($handle === false) {
        throw new Exception();
    }
    while (feof($handle) === false) {
        yield fgetcsv($handle);
    }
    fclose($handle);
}

foreach (getRows('data.csv') as $row) {
     print_r($row);
}