True Light Designs Blog

Useful SSH commands for access issues and Keys

Thursday, 14 January 2016 13:44

Tim Ramsey

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#How to block an IP using iptables?
iptables -A INPUT -s xx.xx.xx.xx -j DROP

#How to block an IP for a specific port:
iptables -A INPUT -p tcp -s xx.xx.xx.xx --dport PORT -j DROP

#How to allow access to an IP?
iptables -A INPUT -s xx.xx.xx.xx -j ACCEPT

#How to allow access to an IP to a specific port using iptables?
iptables -A INPUT -p tcp -s xx.xx.xx.xx --dport PORT -j ACCEPT

#See if SSHD is running and listen to port
netstat -tlpn

mkdir .ssh
chmod 700 .ssh
nano .ssh/authorized_keys
chmod 600 .ssh/authorized_keys

#restart ssh ubuntu
/etc/init.d/ssh

#How to block an IP using iptables?

iptables -A INPUT -s xx.xx.xx.xx -j DROP

#How to block an IP for a specific port:

iptables -A INPUT -p tcp -s xx.xx.xx.xx --dport PORT -j DROP

#How to allow access to an IP?

iptables -A INPUT -s xx.xx.xx.xx -j ACCEPT

#How to allow access to an IP to a specific port using iptables?

iptables -A INPUT -p tcp -s xx.xx.xx.xx --dport PORT -j ACCEPT

#See if SSHD is running and listen to port

netstat -tlpn

mkdir .ssh

chmod 700 .ssh

nano .ssh/authorized_keys

chmod 600 .ssh/authorized_keys

#restart ssh ubuntu

/etc/init.d/ssh

Load custom php.ini with CRON job

Friday, 13 February 2015 14:46

Tim Ramsey

0 Comments

Live and learn. I didn’t realize that when a cron job runs, it does not load the site php.ini file, but by adding a custom directive, we can tell the the php cron job to load the file.

php -c /home/username/config/php.ini /home/username/script.php

1	php -c /home/username/config/php.ini /home/username/script.php

The error I was receiving is below even though I had allow_url_fopen enabled:

Warning: simplexml_load_file(): http:// wrapper is disabled in the server configuration by allow_url_fopen=0 in /home/username/script.php on line 12

Adding the custom directive resolved the issue and hopefully will for you too.

How to duplicate | copy a Magento Database with SSH

Tuesday, 30 December 2014 22:41

Tim Ramsey

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I was a bit hopeful with phpMyAdmin “Synchronize”, but Magento’s databases are apparently too big for it because I ended up with white screens and partial uploads. I resorted to using SSH and doing it over command line. Two lines of code and you can export from your live database and import into a production database. Here you go. Export

mysqldump -u username -p database_name > dump.sql

1	mysqldump -u username -p database_name > dump.sql

Import

mysql -u username -p target_database_name < dump.sql

1	mysql -u username -p target_database_name < dump.sql

Hopefully saved you some time and frustration 🙂

How to change “Date Modified” in Windows with PowerShell

Tuesday, 11 November 2014 20:24

Tim Ramsey

0 Comments

I was doing some development locally and needed to change the file time on some files so I could delete certain files in a directory. Below is the code I used to change the files modified time:

$a = Get-Item C:\file-in-question.txt
$b = Get-Date "11/10/2014 8:00 AM"
$a.LastWriteTime = $b

$a = Get-Item C:\file-in-question.txt

$b = Get-Date "11/10/2014 8:00 AM"

$a.LastWriteTime = $b

Hopefully you find this as useful as I did!

Page 10 of 13

Useful SSH commands for access issues and Keys

Load custom php.ini with CRON job

How to duplicate | copy a Magento Database with SSH

How to change “Date Modified” in Windows with PowerShell

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