/* gets the data from a URL */
function get_data($url)
{
$ch = curl_init();
$timeout = 5;
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
Source: http://davidwalsh.name/download-urls-content-php-curl
Crontab (shutdown every morning at 3am):
0 3 * * * /sbin/shutdown -h now
While process is running, press CTRL-z, then... $ bg (the output may come to foreground again, but you can logout now and the process will continue running in the background)
Use Sony Xbox Remote Codes: 0123
Also, if PC input sound fails, toggle the mute on the LCD TV.
You must use full paths to all arguments for daemonize.
As of now, daemonize must be downloaded and compiled, it does not exist in APT.
$ daemonize /usr/full/path/to/node /home/full/path/to/app.js
svn revert file [file] [file] ...
apt-get install -y pkg-config
Sendmail sometimes uses a lot of disk IO by kicking off this process:
215 root 20 0 0 0 0 D 1 0.0 187:49.63 [jbd2/dm-0-8]
Tools you can try using:
iostat iotop
Before:
# iostat 1
avg-cpu: %user %nice %system %iowait %steal %idle
0.57 0.30 1.28 25.45 0.00 72.40
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 145.50 22.54 1432.56 38268380 2431954938
dm-0 370.18 22.48 1432.37 38162397 2431624576
dm-1 0.06 0.05 0.18 79200 308588
After:
# /etc/init.d/sendmail stop
* Stopping Mail Transport Agent (MTA) sendmail [ OK ]
# iostat 1
Linux 2.6.38-11-server (web201) 09/21/2011 _x86_64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.00 0.00 0.00 0.00 0.00 100.00
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 0.00 0.00 0.00 0 0
dm-0 0.00 0.00 0.00 0 0
dm-1 0.00 0.00 0.00 0 0
Sendmail alternative:
# apt-get install -y postfix (blah blah blah) * Starting Postfix Mail Transport Agent postfix [ OK ] # sendmail -t To:me@gmail.com Subject: test after postfix installed do it (this works)
| DISPLAY FILTER | EXPLANATION | EXAMPLE |
| eth.addr | source or destination mac-address | eth.addr == 00:1a:6b:ce:fc:bb |
| eth.src | source mac-address | eth.src == 00:1a:6b:ce:fc:bb |
| eth.dst | destination mac-address | eth.dst == 00:1a:6b:ce:fc:bb |
| arp.dst.hw_mac | target mac-address | arp.dst.hw_mac == 00:1a:6b:ce:fc:bb |
| arp.dst.proto_ipv4 | target IPv4 address | arp.dst.proto_ipv4 == 10.10.10.10 |
| arp.src.hw_mac | sender mac-address | arp.src.hw_mac == 00:1a:6b:ce:fc:bb |
| arp.src.proto_ipv4 | sender IPv4 address | arp.src.proto_ipv4 == 10.10.10.10 |
| vlan.id | vlan ID | vlan.id == 16 |
| ip.addr | source or destination IPv4 address | ip.addr == 10.10.10.10 |
| ip.dst | destination IPv4 address | ip.addr == 10.10.10.10 |
| ip.src | source IPv4 address | ip.src == 10.10.10.10 |
| ip.proto | IP protocol (decimal) | ip.proto == 1 |
| ipv6.addr | source or destination IPv6 address | ipv6.addr == 2001::5 |
| ipv6.src | source IPv6 address | ipv6.addr == 2001::5 |
| ipv6.dst | destination IPv6 address | ipv6.dst == 2001::5 |
| tcp.port | source or destination TCP port | tcp.port == 20 |
| tcp.dstport | destination TCP port | tcp.dstport == 80 |
| tcp.srcport | source TCP port | tcp.srcport == 60234 |
| udp.port | source or destination UDP port | udp.port == 513 |
| udp.dstport | destination UDP port | udp.dstport == 513 |
| udp.srcport | source UDP port | udp.srcport == 40000 |
| fr.dlci | Frame-Relay DLCI number | fr.dlci == 112 |
| icmp.type | ICMP type code (decimal) | icmp.type == 8 |
| vtp.vlan_info.vlan_name | VLAN name | vtp.vlan_info.vlan_name == TEST |
| bgp.originator_id | BGP id (IPv4 address) | bgp.originator_id == 192.168.10.15 |
| bgp.next_hop | BGP Next Hop (IPv4 address) | bgp.next_hop == 192.168.10.15 |
| rip.ip | RIP IPv4 address | rip.ip == 200.0.2.0 |
| ospf.advrouter | OSPF advertising router ID | ospf.advrouter == 192.168.170.8 |
| eigrp.as | EIGRP autonomous system number | eigrp.as == 100 |
| hsrp.virt_ip | HSRP virtual IP address | hsrp.virt_ip == 192.168.23.250 |
| vrrp.ip_addr | VRRP virtual IP address | vrrp.ip_addr == 192.168.23.250 |
| zebra.dest4 | ZEBRA destination IPv4 address | zebra.dest4 == 10.10.10.10 |
| wlan.addr | source or destination MAC address | wlan.addr == 00:1a:6b:ce:fc:bb |
| wlan.sa | source MAC address | wlan.sa == 00:1a:6b:ce:fc:bb |
| wlan.da | destination MAC address | wlan.da == 00:1a:6b:ce:fc:bb |
Source: firstdigest.com
APT packages needed to play FFmpeg .avi files:
p gstreamer0.10-ffmpeg - FFmpeg plugin for GStreamer p gstreamer0.10-plugins-bad - GStreamer plugins from the "bad" set
Reduce usage in your right hand using these mappings.
- Mirror up and down keys
- Shift left and right keys to the left hand
- 's' (change one character and insert) becomes 'h'
- 'd' ('dd' deletes a line) becomes 'k'
- 'f' ('ff' moves cursor to end of line) becomes 'j'
- 'g' (does nothing by itself) becomes 'l'
- 'noremap' avoids infinite loop
~/.vimrc: " Map Right Hand Directionals to Left Hand Commands noremap s h noremap d k noremap f j noremap g l " Map Left Hand Commands to Right Hand Directionals noremap h s noremap k d noremap j f noremap l g
RedirectMatch (.*) https://host.example.com$1
apt-get install -y rpm
For Windows, do this:
shell> mysql -u root
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpwd');
mysql> SET PASSWORD FOR 'root'@'127.0.0.1' = PASSWORD('newpwd');
mysql> SET PASSWORD FOR 'root'@'%' = PASSWORD('newpwd');
The last statement is unnecessary if the mysql.user table has no root account with a host value of %.
For Unix, do this:
shell> mysql -u root
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpwd');
mysql> SET PASSWORD FOR 'root'@'127.0.0.1' = PASSWORD('newpwd');
mysql> SET PASSWORD FOR 'root'@'host_name' = PASSWORD('newpwd');
You can also use a single statement that assigns a password to all root accounts by using UPDATE to modify the mysql.user table directly. This method works on any platform:
shell> mysql -u root
mysql> UPDATE mysql.user SET Password = PASSWORD('newpwd')
-> WHERE User = 'root';
mysql> FLUSH PRIVILEGES;
The FLUSH statement causes the server to reread the grant tables. Without it, the password change remains unnoticed by the server until you restart it.
To assign passwords to the root accounts using mysqladmin, execute the following commands:
shell> mysqladmin -u root password "newpwd" shell> mysqladmin -u root -h host_name password "newpwd"
Those commands apply both to Windows and to Unix. The double quotation marks around the password are not always necessary, but you should use them if the password contains spaces or other characters that are special to your command interpreter.
GRANT ALL ON *.* TO 'root'@'%' IDENTIFIED BY 'password';
Source: dev.mysql.com
svn import myfolder svn+ssh://kitamura@svn2.cs.lmu.edu/svn/myfolder \ -m "my comment"
1. faster one sudo chown -R nobody:nogroup /var/lib/ntop 2. slower but nicer sudo chmod 755 /var/lib/ntop sudo mkdir /var/lib/ntop/rrd sudo chown -R nobody:nogroup /var/lib/ntop/rrd and then you can run sudo ntop & and connect to it on http://localhost:3000
Source: Ubuntuforums.org
# chmod 775 /abspath/to/svnroot
When all else fails on the client…
# apt-get install -y dhcpcd # dhcpcd eth0 # dhcpcd.sh: interface eth0 has been configured with new IP=XXX.XXX.XXX.XXX
If it still fails, restart the DHCP server…
# /etc/init.d/dhcp3-server restart
Other things to try on the client:
# dhcpcd -k eth0 # dhcpcd -n eth0 # dhcpcd eth0 # ifconfig (to check)
CNN.com BBC AL JAZEERA ENGLISH (AJE)