Prevent someone else from using your wireless Internet connection ¹«¼± ÀÎÅÍ³Ý ¿¬°áÀ» »ç¿ëÇÏÁö ¾Êµµ·Ï ´©±º°¡

Posted on December 4, 2008 at 5:23 am 12 ¿ù 4 ÀÏ, 2008 °Ô½ÃµÊ ¿ÀÀü 5:22

Prevention is better than cure, its so true for securing your wireless Internet connection. ¿¹¹æ°ú Ä¡·áº¸´Ù ³´´Ù´Â »ç½Ç ¶§¹®¿¡ ¹«¼± ÀÎÅÍ³Ý ¿¬°áÀ» È®º¸Çß´Ù. In this post I will tell you what all you must do to prevent misuse of the Wireless Internet connection by someone without your permission. ÀÌ °Ô½Ã¹°¿¡´Â ³»°¡ ¹» ¸ðµÎ ´ç½ÅÀÇ Çã°¡¾øÀÌ´Â ´©±º°¡¿¡ ÀÇÇØ ¹«¼± ÀÎÅÍ³Ý ¿¬°áÀÇ ¿À¿ëÀ» ¸·±â À§ÇØÇØ¾ß ÇÒ ¸»¾¸ÀÌ´Ù.

Such unauthorized use of Internet connection can not only cause monerty damage, but can also be used for identity thefts and other cyber-crimes. ÀÎÅÍ³Ý ¿¬°áÀÇÀÌ °°Àº ºÒ¹ýÀûÀÎ ¸ñÀûÀ¸·Î¸¸ »ç¿ëÇÏÁö¸¸, monerty ÇÇÇØ¸¦ ÀÔÀ» ¼ö ¾ø¾îµµ ½ÅºÐ Àýµµ¿Í ±âŸ »çÀ̹ö - ¹üÁË¿¡ »ç¿ëµÉ ¼öÀÖ½À´Ï´Ù. It can mean stealing your Internet Banking passwords, credit card details etc. ´ç½ÅÀÇ ÀÎÅÍ³Ý ¹ðÅ·ÀÇ ÆÐ½º¿öµå¸¦ ÈÉÄ¡´Â ¶æ ¼ö, ½Å¿ë Ä«µå Á¤º¸ µî

I am going to list down the 5 most important things you should do after you set up wireless connection: ³»°¡ ´ç½ÅÀ» ´ç½ÅÀÇ ¹«¼± ¿¬°áÀ» ¼³Á¤ÇØ¾ß ÇÒ °¡Àå Áß¿äÇÑ °ÍµéÀ» ´Ù¿î ¸ñ·Ï¿¡°¡´Â 5 ÀÏ ¿ÀÀü :

1. Make Connection Secure: ¾ÈÀüÇÏ°Ô ¿¬°á :

Securing the wireless Internet connection means to use some encryption on data and use of password authentication to access the Wireless Internet. ¹«¼± ÀÎÅÍ³Ý ¿¬°áÀ» È®º¸ ¹«¼± ÀÎÅͳݿ¡ ¾×¼¼½ºÇÏ´Â µ¥ÀÌÅÍ ¹× ¾ÏÈ£ ÀÎÁõÀÇ »ç¿ë¿¡ ´ëÇÑ ¸î °¡Áö ¾Ïȣȭ¸¦ »ç¿ëÇÏ´Â °ÍÀ» ¶æÇÕ´Ï´Ù. Go to Security options on your router control page and make the connection secure. º¸¾È ¿É¼ÇÀ» ±ÍÇÏÀÇ ¶ó¿ìÅ͸¦ Á¦¾î ÆäÀÌÁö¿¡ ¿¬°áÀ» ¾ÈÀüÇÏ°Ô À̵¿ÇϰíÀÖ´Ù. This interface may vary from brand to brand, but the concept is more or less the same. ÀÌ ÀÎÅÍÆäÀ̽º´Â ºê·£µåÀÇ ºê·£µå¿¡ À̸£±â±îÁö,ÇÏÁö¸¸ °³³äÀÌ ´õ ¶Ç´Â ´ú ¸¶Âù°¡Áö´Ù º¯°æµÉ ¼öÀÖ½À´Ï´Ù. For example in my Netgear router, the option look something like this: ³» ³Ý±â¾î ¶ó¿ìÅÍ¿¡¼­ ¿¹¸¦ µé¾î,ÀÌ °°Àº ¿É¼ÇÀ» º¸¸é ¹º°¡ :

wireless-security-options

We recommend WPA or WPA2, along with a strong Pass-phrase or password. ¿ì¸®°¡ °­ÇÑ ÆÐ½º - ±¸¹®À̳ª ºñ¹Ð ¹øÈ£°¡ WPA ¶Ç´Â WPA2¸¦ ÇÔ²² ±ÇÇØµå¸³´Ï´Ù. A good password will be one which has a mix of upper-case,lowercase and special characters. ÁÁÀº ºñ¹Ð ¹øÈ£¸¦ Çϳª »ó´Ü - »ç°Ç, ¹× Ư¼ö ¹®ÀÚ´Â ¼Ò¹®ÀÚÀÇ È¥ÇÕÀÌ µÉ °ÍÀÔ´Ï´Ù. After you make these changes on your router, you have to make corresponding changes on your Laptop or Desktops which access this router, to use same encryption settings and same password. ÀÌÈÄ ±ÍÇÏÀÇ ¶ó¿ìÅÍ¿¡ ÀÌ·¯ÇÑ º¯°æ, °°Àº ¾Ïȣȭ ¼³Á¤°ú µ¿ÀÏÇÑ ¾ÏÈ£¸¦ »ç¿ëÇÏ¿© ³ëÆ®ºÏÀ̳ª µ¥½ºÅ©Å¾ ¾×¼¼½ºÇÏ´ÂÀÌ ¶ó¿ìÅÍ¿¡ ÇØ´ç º¯°æ »çÇ×À» ³»·Á¾ßÇÑ´Ù.

For example, on myWwindows Vista laptop, I go to Control Panel > Network and Sharing Center > Manage Wireless Networks > right click on name of network > Properties , it will look something like this: myWwindows¿¡ ¿¹¸¦ µé¾î, ºñ½ºÅ¸ ³ëÆ®ºÏ, Á¦¾îÆÇÀ¸·Î À̵¿> ³×Æ®¿öÅ© ¹× °øÀ¯ ¼¾ÅÍ> °ü¸® ¹«¼± ³×Æ®¿öÅ©> ³×Æ®¿öÅ©ÀÇ À̸§À» ¸¶¿ì½º ¿À¸¥ÂÊ ¹öưÀ¸·Î Ŭ¸¯> ¼Ó¼º, ÀÌ·¸°Ô »ý°åÀ» °ÍÀÌ´Ù :

manage-wireless-properties

windows-wireless-security-settings

This will restrict your wireless Internet connection from being used without password authentication. ÀÌ ¾ÏÈ£ ÀÎÁõ¾øÀÌ »ç¿ëµÇ°í ±ÍÇÏÀÇ ¹«¼± ÀÎÅÍ³Ý ¿¬°áÀÌ Á¦Çѵ˴ϴÙ.

2. Disable SSID Broadcast SSID¸¦ ºê·Îµå ij½ºÆ®¸¦ ÇØÁ¦

Disabling SSID broadcast is like making the router silent, it will not tell anyone that the router is around, unless someone tries to call its name( or IP address). SSID¸¦ ºê·Îµå ij½ºÆ®¸¦ ÇØÁ¦ÇÏÁö ¾Ê´Â ÇÑ »ç¶÷ÀÇ À̸§ (¶Ç´Â IP ÁÖ¼Ò)¸¦ È£ÃâÇÏ·Á°íÇϸé ħ¹¬ÀÇ ¶ó¿ìÅÍ, ±× ¶ó¿ìÅͰ¡ ÁÖº¯¿¡ ¾Æ¹«¿¡°Ôµµ ¸»ÇÏÁö ¾Ê°Ú ¸¸µå´Â °É ÁÁ¾ÆÇØ¿ä. To disable SSID, go to the control page of your router, look for SSID broadcast option and simply disable it, see the example below for the Netgear router, on this control page, I have to un-check the ¡°Enable SSID Broadcast¡± option: SSID¸¦ ÇØÁ¦ÇÏ·Á¸é, ±ÍÇÏÀÇ ¶ó¿ìÅÍ, SSID¸¦ ºê·Îµå ij½ºÆ® ¿É¼Ç¿¡ ´ëÇѺ¸°íÀÇ ÅëÁ¦ ÆäÀÌÁö·ÎÇÏ°í ´Ü¼øÈ÷ ±×°ÍÀ» ÇØÁ¦, ³Ý±â¾î ¶ó¿ìÅÍ¿¡ ´ëÇÑ,ÀÌ ÄÁÆ®·ÑÀ» ÆäÀÌÁö¿¡ ¾Æ·¡ÀÇ ¿¹¸¦ º¼ ¶§, ³­À» Ãë¼ÒÇØ¾ß - Ȱ¼ºÈ­ "SSID¸¦ ºê·Îµå ij½ºÆ®"¿É¼ÇÀ» È®ÀÎÇÏ·¯ :

disable-ssid-broadcast

3. Enable Firewall On Router If Available ¶ó¿ìÅÍ¿¡ ¹æÈ­º®À» ¼³Á¤ »ç¿ëÇÒ ¼öÀÖ´Â °æ¿ì

Some routers have in-built firewall option, if that is available, turn it on, it will help secure your computers from being hacked even if someone gets to access your network without your permission. ÀϺΠ¶ó¿ìÅÍ¿¡¼­´Â - ¹æÈ­º® ¿É¼Ç, ³»Àå °¡´ÉÇÑ °æ¿ì´Â, ±×°ÍÀ» ÄÓ ¶§, ±ÍÇÏÀÇ ÄÄÇ»Å͸¦ ¾ÈÀü¿¡µµ µµ¿òÀÌ µÉ °ÍÀÔ´Ï´Ù ±ÍÇÏÀÇ Çã¶ô¾øÀÌ ¸¸¾à ´©±º°¡ ´ç½ÅÀÇ ³×Æ®¿öÅ© ¾×¼¼½º¿¡ µµ´Þ ÇØÅ·ÀÖ´Ù.

4. Change Administrator Password °ü¸®ÀÚ ¾ÏÈ£ º¯°æ

It is very important to change the administrator password of your router, because certain brands of routers have certain default username password sets that hackers know very well, so if they get till your network, and you still have the default passwords set, they can steal your important data. ¶§¹®¿¡ ƯÁ¤ ºê·£µå¸¦ ƯÁ¤ ¶ó¿ìÅÍÀÇ ±âº» »ç¿ëÀÚ ¾ÏÈ£¸¦ ¼³Á¤ ÇØÄ¿°¡ ¾ÆÁÖ Àß ¾Ë°íÀÖ¾î ¾ÆÁÖ ±ÍÇÏÀÇ ¶ó¿ìÅÍÀÇ °ü¸®ÀÚ ¾ÏÈ£¸¦ º¯°æÇÏ·Á¸é, ±×·¡¼­ ±×µéÀÌ ´ç½ÅÀÇ ³×Æ®¿öÅ©±îÁö¹ÞÀ» °æ¿ì Áß¿äÇÑ °ÍÀº, ´ç½ÅÀº ¾ÆÁ÷ ±âº» ¾ÏÈ£¸¦ ¼³Á¤ÇÒ¸¦ °¡Áö°í ÀÖ°í, ±×µéÀ» ÈÉÄ¥ ¼öÀÖ´Ù Áß¿äÇÑ µ¥ÀÌÅ͸¦. For this, look for some set password/change password option on your router control page, for example, on Netgear, its something like this: ÀÌ µé¾î, ÀϺΠ¼³Á¤ ºñ¹Ð ¹øÈ£¸¦ ã¾Æ / ºñ¹Ð ¹øÈ£ º¯°æ ¿É¼ÇÀ» »ç¿ëÇÏ¸é ¶ó¿ìÅ͸¦ Á¦¾î ÆäÀÌÁö¿¡, ¿¹¸¦ µé¾î, ³Ý±â¾î¿¡, ÀÌ·±½ÄÀ¸·Î´Â ¹º°¡ :

set-password-on-wireless-router

5. Turn-off Router When Not In Use Â÷·Ê - ¶ó¿ìÅÍ¿¡¼­ »ç¿ëµÇ´Â °æ¿ì°¡ ¾Æ´Ñµ¥

Not only does it saves on your power bills, but also, will help keep it secure, for example in my case, I use Wireless Internet at home only for 5 hours a day, so I turn it on for that time, and keep it turned off for rest of the day when I am away for work. Not only does it saves on your power bills, but also, will help keep it secure, for example in my case, I use Wireless Internet at home only for 5 hours a day, so I turn it on for that time, and keep it ÇÏ·ç Áß ³ª¸ÓÁö ½Ã°£ µ¿¾È ¿ÀÀü Ãâ±Ù ½Ã°£ ¶§ µµ¸ÁÀ» ²°½À´Ï´Ù.

Hope you will find these tips useful. Èñ¸ÁÀÌ ÆÁÀ» ¸Å¿ì À¯¿ëÇÒ °ÍÀÔ´Ï´Ù.

This is a guest post contributed by ¼Õ´ÔÀÌ ¿ìÆíÀ¸·Î ±â¿©ÀÔ´Ï´Ù TroubleFixers – All about Fixing Computer Troubles TroubleFixers - °íÁ¤ ÄÄÇ»ÅÍ¿¡ ¹®Á¦ ¸ðµÎ¿¡ ´ëÇØ . This is a blog which provides solutions to computer problems. ÀÌ ºí·Î±×´Â ÄÄÇ»ÅÍ ¹®Á¦·Î ¼Ö·ç¼ÇÀ» Á¦°øÇϰíÀÖ´Ù. You can find their ´ç½ÅÀ» ãÀ» ¼öÀÖ½À´Ï´Ù RSS feed here ¿©±âÀÇ RSS Çǵå or free ¶Ç´Â ¹«·á Email updates here À̸ÞÀÏ ¾÷µ¥ÀÌ Æ®¸¦ ¿©±â¿¡ .

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2 Responses to ¡°Prevent someone else from using your wireless Internet connection¡± ÀÌ ´äº¯Àº "¹«¼± ÀÎÅÍ³Ý ¿¬°áÀ» »ç¿ëÇÏ¿©"´Ù¸¥ »ç¶÷À» ¹æÁöÇÏ´Â

  1. Ralph Law ¶öÇÁ ¹ý said on : ¿¡ÀÖ´Ù :

    OMG.. ¼¼»ó¿¡ .. this is helpful! ÀÌ µµ¿òÀÌ µÉ °ÍÀÔ´Ï´Ù! My neighbor for the longest had his linksys router open to anyone who wanted to use it. °¡Àå ±ä ´ëÇÑ ³» ÀÌ¿ôÀ» ÀÚ½ÅÀÇ ¸µÅ©½Ã½º ¶ó¿ìÅ͸¦ ¿øÇÏ´Â »ç¶÷Àº ´©±¸¿¡°Ô³ª ¿ÀÇÂÇß´Ù. I had to tell him about this link so he could lock it down. Á¤¸» ±×°¡ÀÌ ¸µÅ©¿¡ ´ëÇØ ¸»¾¸À» ºÀ¼âÇß´Ù. Thanks for the info, saves me time from explaining all of this to him in person. Á¤º¸¸¦ Á༭ °í¸¶¿ö, ³»°¡ ±×¸¦ À§ÇØ ¸ðµç »ç¶÷ÀÌ ¼³¸íÇÏ´Â ½Ã°£À» Àý¾àÇÒ ¼öÀÖ½À´Ï´Ù. Just send him the link to this post! ´ÜÁö ±×¸¦ÀÌ °Ô½Ã¹°¿¡ ´ëÇÑ ¸µÅ©¸¦ º¸³»!


  2. Kevin said on : ÄɺóÇϰíÀÖ´Ù :

    If you want to figure out OpenVPN, you can also do OpenVPN to a wired Windows or Linux computer, and relay all your traffic through Openvpn (see: OpenVPN.net - freeware). OpenVPNÀÇ °æ¿ì, ´ç½ÅÀº ¶ÇÇÑ À¯¼± À©µµ¿ì ¶Ç´Â ¸®´ª½º ÄÄÇ»ÅÍ, OpenVPNÀÇ ¸±·¹À̸¦ ÅëÇØ ±ÍÇÏÀÇ ¸ðµç Æ®·¡ÇÈÀ» ÇÒ ¼ö ÀÖ°í OpenVPN ¾Ë¾Æ³»¾ß (ÂüÁ¶ : OpenVPN.net - ÇÁ¸®¿þ¾î).

    Another idea, secure all Wifi connections by assigning static IP addresses to the Wifi computers (consistent with the router¡¯s addressing scheme), and then turn off DHCP server on the WiFi router. ´Ù¸¥ »ý°¢, Wifi ÄÄÇ»ÅÍ¿¡ °íÁ¤ IP ÁÖ¼Ò¸¦ ÇÒ´çÇÏ¿© (¶ó¿ìÅÍÀÇ ÁÖ¼Ò Ã¼°è¿Í) ÀÏÄ¡, ±×¸®°í ¸ðµç Wifi ¿ÍÀÌÆÄÀÌ ¶ó¿ìÅÍ¿¡ DHCP ¼­¹ö ¿¬°á º¸¾ÈÀ» ÇØÁ¦ÇÕ´Ï´Ù. If someone breaks your encryption, then he will have to be smart enough to figure out your IP addressing scheme with DNS as well. ¸¸¾à ´©±º°¡°¡ ´ç½ÅÀÇ ¾Ïȣȭ ÈÄ ÃæºÐÇÑ È޽ĻӸ¸ ¾Æ´Ï¶ó »ç¿ëÀÚÀÇ IP ÁÖ¼Ò¸¦ DNS ±¸¼ºÇ¥¸¦ ¾Ë¾Æ³¾ ¿µ¸®ÇؾßÇÑ´Ù. Otherwise, DHCP gives away the farm. ±×·¸Áö ¾ÊÀ¸¸é, DHCP¸¦ ¸Ö¸® ³óÀåÀ» ÁØ´Ù.

    Also, PLEASE do change the router¡¯s default internal IP address. ¶ÇÇÑ, ³»ºÎ IP ÁÖ¼Ò´Â ¶ó¿ìÅÍÀÇ ±âº» ¼³Á¤ º¯°æÇÏ·Á¸é ¾î¶»°ÔÇØ¾ßÇմϱî. Everyone knows, 192.168.1.1 or 192.168.0.1 or whatever your router defaults to. ´©±¸³ª ¾Ë°íÀÖ´Â ¶ó¿ìÅÍ´Â ±âº»ÀûÀ¸·Î 192.168.1.1 ¶Ç´Â 192.168.0.1ÀÌµç ¹¹µç.

    Also, check for your router¡¯s firmware updates on the manufacturer¡¯s website. ¶ÇÇÑ, Á¦Á¶ ¾÷üÀÇ À¥ »çÀÌÆ®¿¡ ±ÍÇÏÀÇ ¶ó¿ìÅÍÀÇ Æß¿þ¾î ¾÷µ¥ÀÌ Æ®¸¦ È®ÀÎÇÕ´Ï´Ù. The latest firmware has the latest security updates. ÃֽŠÆß¿þ¾î¸¦ ÃֽŠº¸¾È ¾÷µ¥ÀÌ Æ®¸¦ÇϰíÀÖ´Ù. - Not for the faint of heart. ½ÉÀå ¾àÇÑ - ¾Æ´Ï¿ä.


    Please post your comments/suggestions! ±ÍÇÏÀÇ ÀǰßÀ» °Ô½ÃÇϽñ⠹ٶø´Ï´Ù / Á¦¾È!