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Technology Tips

TECHNOLOGY TIPS

Opening Port on Iptables

By default iptables is the firewall that is enabled on linux systems. It is very simple to open ports without totally disabling the iptables service. Here are simple steps: iptables -I INPUT -p tcp --dport <port> -m state --state NEW,ESTABLISHED -j ACCEPT iptables -I OUTPUT -p tcp --sport <port>...

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Technology Tips

TECHNOLOGY TIPS

Increasing SSH Timeouts

Here are the steps to increase ssh timeout at the server level on Linux OS: These steps are performed on CentOS: Modify the following directives by editing the sshd config file: /etc/ssh/sshd_config TCPKeepAlive yes ClientAliveInterval 30 ClientAliveCountMax 99999   Restart SSH Demon after modifying the config file: [root@mars ~]#...

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Technology Tips

TECHNOLOGY TIPS

AWK one liner – Getting Sum of a Column

The following AWK one liner that can be used to get sum of a column in a text file: Here is the sample of file content: cat file_size.txt -rw——- 1 oracle oinstall 4096 Jun 8 18:24 file0000018500000001 -rwxr-xr-x 1 oracle oinstall 19 Jun 14 13:33 file0000034c00000001 -rw——- 1 oracle...

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Company News

COMPANY NEWS

Team Building

  Today, Princeton IT Services conducted a team building event at Frames Bowling Lounge near Port Authority in New York City for our Sales & Marketing team. It was a great, stress-free event for our team to be able to get to know each other out of the professional...

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Company News

COMPANY NEWS

Launching Our New Website

We are excited to launch our new website of Princeton IT Services on April 15, 2013. We have made fundamental changes in all pages and the entire layout. It is a totally redesigned website with interactive function, clear navigation and up-to-date information. You can easily locate our IT services,...

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