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		<title>봄비, 여름비, 가을비... 슬픈 노래</title>
		<link>http://www.otl.ne.kr/</link>
		<description>:: OTL ≠ 좌절 :: OTL = 운(運) ::</description>
		<language>ko</language>
		<pubDate>Thu, 08 Dec 2011 14:51:26 +0900</pubDate>
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		<managingEditor>coriahn</managingEditor>
		<item>
			<title>Excel 함수</title>
			<link>http://www.otl.ne.kr/291</link>
			<description>반올림 ROUND(number,num_digits) 올림 ROUNDUP(number,num_digits) 내림 ROUNDDOWN(number,num_digits)&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/291</guid>
			<comments>http://www.otl.ne.kr/291#entry291comment</comments>
			<pubDate>Thu, 08 Sep 2011 15:41:32 +0900</pubDate>
		</item>
		<item>
			<title>Link-local address(169.254.0.0/16)</title>
			<link>http://www.otl.ne.kr/287</link>
			<description>가끔 랜카드가 IP를 169.254.23.3 이렇게 잡는 경우가 생긴다. 어이 없는 네트워크 대역이라 생각 되지만.. IP프로토콜에 정의된 대역이였다.. http://en.wikipedia.org/wiki/Link-local_address 번역해서 요약해보자면.. 내부내트워크의 연결 혹은 P-to-P 간의 연결을 위해 만들어진 IP대역이고 라우터에서 처리해주지 않는다. DHCP나 다른 ip 설정메소드에 실해 했을 설정이 된다는것 같네요.. 발번역 죄송.&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>3-5. Networks</category>
			<category>169.254.0.0/16</category>
			<category>zero configuration networking</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/287</guid>
			<comments>http://www.otl.ne.kr/287#entry287comment</comments>
			<pubDate>Mon, 08 Aug 2011 09:55:05 +0900</pubDate>
		</item>
		<item>
			<title>/proc/loadavg</title>
			<link>http://www.otl.ne.kr/286</link>
			<description>3.2.16. /proc/loadavg This file provides a look at the load average in regard to both the CPU and IO over time, as well as additional data used by uptime and other commands. A sample /proc/loadavg file looks similar to the following: 0.20 0.18 0.12 1/80..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>3-1. Linux</category>
			<category>loadavg</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/286</guid>
			<comments>http://www.otl.ne.kr/286#entry286comment</comments>
			<pubDate>Tue, 02 Aug 2011 17:42:40 +0900</pubDate>
		</item>
		<item>
			<title>리눅스 벤치마크 프로그램 목록</title>
			<link>http://www.otl.ne.kr/284</link>
			<description>소개 오버클럭, 벤치마크 웹 사이트 소개 입니다. (중략...) 라이브CD stresslinux - stresslinux는 부팅하여 최소한으로 실행하는 리눅스 배포판으로 USB,CD,PXE로 구동 할수 있습니다. 모니터링 lm sensors - 팬, 전압, 온도 모니터링 hddtemp - 하드디스크 온도 모니터링 smartmontools - 하드디스크의 SMART 시스템 모니터링입니다. 벤치마크 모음 PTS - phoronix 테스트는 리눅스에서 사..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>::Utils::</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/284</guid>
			<comments>http://www.otl.ne.kr/284#entry284comment</comments>
			<pubDate>Mon, 25 Jul 2011 15:59:55 +0900</pubDate>
		</item>
		<item>
			<title>트래픽과 전송속도와의 상관 관계</title>
			<link>http://www.otl.ne.kr/283</link>
			<description>내용 : 전송속도가 T1(1.544 Mbps)으로 연결된 라우터에 대해서 60초 동안 traffic을 체크하여, 트래픽 양과 전송속도의 관계를 확인하고자 함. 라우터IP(가상) : 10.1.1.1 community : public 포트번호 : 2번 사용한 프로그램 : snmpget [트래픽추출] #snmpget 10.1.1.1 public ifInOctets.2 ifOutOctets.2 interfaces.ifTable.ifEntry.ifInOcte..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>3-5. Networks</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/283</guid>
			<comments>http://www.otl.ne.kr/283#entry283comment</comments>
			<pubDate>Tue, 12 Jul 2011 15:20:24 +0900</pubDate>
		</item>
		<item>
			<title>snmpwalk 사용법</title>
			<link>http://www.otl.ne.kr/282</link>
			<description>snmpwalk -v2c -c read-community 호스트IP . SNMPv2-MIB::sysDescr.0 = STRING: Linux ns.aaa.or.kr 2.6.6-8hl #1 Tue Oct 12 00:22:29 KST 2004 i686 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 SNMPv2-MIB::sysUpTime.0 = Timeticks: (54657) 0:..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>3-5. Networks</category>
			<category>snmp</category>
			<category>snmpv3</category>
			<category>snmpwalk</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/282</guid>
			<comments>http://www.otl.ne.kr/282#entry282comment</comments>
			<pubDate>Tue, 12 Jul 2011 15:09:40 +0900</pubDate>
		</item>
		<item>
			<title>밀고기..seitan 만드는법..</title>
			<link>http://www.otl.ne.kr/281</link>
			<description>lang-8.com에서 한글로 쓴글을 수정하는 작업을 하는도중.. 반죽을 씻는다는 황당한 이야기를 접하고.. 검색해본결과... 정말.. 씻는다.. ;;;;;;;; http://youtu.be/s9vHa66Bm5E http://reallifenw.blogspot.com/2009/09/seitan.html&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>건강</category>
			<category>seitan</category>
			<category>밀고기</category>
			<category>반죽 씻기</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/281</guid>
			<comments>http://www.otl.ne.kr/281#entry281comment</comments>
			<pubDate>Thu, 07 Jul 2011 10:23:57 +0900</pubDate>
		</item>
		<item>
			<title>서울 부동산 매매가격..</title>
			<link>http://www.otl.ne.kr/280</link>
			<description>http://land.seoul.go.kr/land/&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>Bookmarks</category>
			<category>매매가격</category>
			<category>부동산</category>
			<category>부동산 시세</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/280</guid>
			<comments>http://www.otl.ne.kr/280#entry280comment</comments>
			<pubDate>Wed, 06 Jul 2011 10:52:42 +0900</pubDate>
		</item>
		<item>
			<title>천연 비아그라/메꽃</title>
			<link>http://www.otl.ne.kr/279</link>
			<description>그냥 단지 잡초인줄 알았는데.. 몸에 좋은 꽃이라는게 신기하다.. 메꽃은 묵은 논밭이나 물기가 약간 있는 풀밭, 길옆 같은 데서 흔히 자라는 여러해살이 덩굴풀이다. 메꽃 뿌리는 허약한 체질을 바꾸는데 상당한 효력이 있다. 특히 어린이나 노인들의 체력을 늘리는 데 효과가 좋다. 몸이 너무 말라서 고민하는 사람, 병을 오래 앓아서 기력이 몹시 약해진 사람이 메꽃 뿌리를 져서 두세달 먹으면 살이 오르고 기운을 차릴 수 있게 된다. 메꽃 뿌리는 혈압을 낮추..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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	--&gt;
&lt;/div&gt;
</description>
			<category>건강</category>
			<category>메꽃</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/279</guid>
			<comments>http://www.otl.ne.kr/279#entry279comment</comments>
			<pubDate>Fri, 01 Jul 2011 13:04:58 +0900</pubDate>
		</item>
		<item>
			<title>윈도우7에선 고스트가 필요없다?</title>
			<link>http://www.otl.ne.kr/278</link>
			<description>▶ 윈도우 7 백업 및 복원을 위한 준비물 1. 외장하드 디스크 (여유 공간이 대략 20~40G 정도는 필요합니다.) 2. 필요한 모든 프로그램이 미리 설치된 완벽한 (?) 윈도우7 PC - 필수프로그램 설치: 오피스,포토샵등… 사용할 프로그램을 미리 다 설치해둡니다. - 윈도우 보안패치 완료: - 보안프로그램은 절대로 설치하지 마세요 (PC보안,백신등은 고유값을 별도 생성하는 경우가 대부분) ▶ 윈도우 7 시스템 이미지 백업하기 1. 외장하드디스크..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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	--&gt;
&lt;/div&gt;
</description>
			<category>3-2. WinNT</category>
			<category>windows 7</category>
			<category>고스트</category>
			<category>백업</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/278</guid>
			<comments>http://www.otl.ne.kr/278#entry278comment</comments>
			<pubDate>Thu, 19 May 2011 22:31:03 +0900</pubDate>
		</item>
		<item>
			<title>[pixlr] 인터넷만 되면 어디서나 포토샵을 쓸수있다?</title>
			<link>http://www.otl.ne.kr/277</link>
			<description>오늘 간단한 사진편집을 급하게 하려고 했는데 프로그램 다운로드 받기가 매우 귀챦았습니다. 그래서 웹 포토샵을 찾아보았더니 근사한게 있네요.. 꽤 쓸만하다는 생각이 들었어요.. 사이트가 플래시로 제작되어있는데 모양뿐 아니라 기능도 비슷하네요.. 거참.. 신통하다. http://www.pixlr.com/editor/ 아래 사진은 PC에 설치된 크롬 웹브라우저로 Pixlr 사이트에 접속하여 이미지 사이즈 조정및 멀티레이어를 생성하여 사진을 편집하고 있는..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>Bookmarks</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/277</guid>
			<comments>http://www.otl.ne.kr/277#entry277comment</comments>
			<pubDate>Thu, 19 May 2011 22:22:58 +0900</pubDate>
		</item>
		<item>
			<title>11.04에서 왼쪽에 바 없애기..::임시)</title>
			<link>http://www.otl.ne.kr/276</link>
			<description>ubuntu 로그인 할때 세션을 다른걸로 변경하면 된다고 함.. 테스트 해봐야지..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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	--&gt;
&lt;/div&gt;
</description>
			<category>::Ubuntu</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/276</guid>
			<comments>http://www.otl.ne.kr/276#entry276comment</comments>
			<pubDate>Wed, 11 May 2011 19:37:47 +0900</pubDate>
		</item>
		<item>
			<title>portsentry를 이용한 실시간 방어 구현</title>
			<link>http://www.otl.ne.kr/275</link>
			<description>펌&#039;d by http://www.superuser.co.kr 포트스캐닝 방어의 가장 확실한 대안이 될수있는 portsentry에 대한 설명을드릴까한다. Ping이나 기타 다른 도구들을 이용하여 불법적인 접근을 하려고 할 때 /etc/hosts.deny 파일에 실시간으로 추가되어 서버접근 및 포트스캔을 막는 막강한 보안툴이다. 먼저, 설치부터 해보도록 하자. 다음은 Portsentry-1.1.tar.gz 를 다운 받아서 tar로 압축을 풀고 있는 작업..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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	--&gt;
&lt;/div&gt;
</description>
			<category>3-1. Linux</category>
			<category>hosts</category>
			<category>hosts.deney</category>
			<category>port</category>
			<category>portsentry</category>
			<category>포트 방어</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/275</guid>
			<comments>http://www.otl.ne.kr/275#entry275comment</comments>
			<pubDate>Mon, 25 Apr 2011 11:35:40 +0900</pubDate>
		</item>
		<item>
			<title>식별 되지 않은 네트워크</title>
			<link>http://www.otl.ne.kr/274</link>
			<description>윈도우 7을 쓰면서 최근에 황당한 경험을 하게 됩니다.. 무선으로 공유기에 접속하면 &quot;식별되지 않은 네트워크&quot; 라고 뜨면서 인터넷이 안된다. 이 얼마나 황당한 시츄에이션인가.. ㅡㅡ 나 이사람 스마트한 사람임으로 스마트폰으로 구글링(네트워크 식별) 해본 결과, 아래의 링크를 얻게 됩니다. http://bit.ly/htxLH8 너무 길어서 줄입니다.. 실제 주소는 더보기 클릭  http://answers.microsoft.com/ko-kr/window..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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	--&gt;
&lt;/div&gt;
</description>
			<category>3-2. WinNT</category>
			<category>네트워크 식별</category>
			<category>무선 인터넷</category>
			<category>식별되지 않은 네트워크</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/274</guid>
			<comments>http://www.otl.ne.kr/274#entry274comment</comments>
			<pubDate>Wed, 20 Apr 2011 19:05:29 +0900</pubDate>
		</item>
		<item>
			<title>PowerPoint Templates 제공사이트</title>
			<link>http://www.otl.ne.kr/273</link>
			<description>http://www.m62.net&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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&lt;/div&gt;
</description>
			<category>Bookmarks</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/273</guid>
			<comments>http://www.otl.ne.kr/273#entry273comment</comments>
			<pubDate>Thu, 14 Apr 2011 00:26:57 +0900</pubDate>
		</item>
		<item>
			<title>linux를 콘솔로 사용할때 해상도가 안맞아서 우울하셨던분을 위한 팁..</title>
			<link>http://www.otl.ne.kr/271</link>
			<description>개념은 부팅시 커널 옵션을 변경해서 해상도를 키워주는 것이고, TEST에 성공했습니다. 사실 리눅스 콘솔에 직접 붙어서 사용할 일이 잘 없기 때문에 유용하지 않을 수도 있지만.. 썩 괜찮은 팁이라 한번 기록해봄.. grub.conf 파일을 열어서 아래와 같이 편집한다.(/boot/grub/grub.conf, menu.lst 모두 동일파일) [root@localhost ~]# vi /etc/grub.conf kernel (...어쩌구...) vga=7..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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&lt;/div&gt;
</description>
			<category>::Configuration::</category>
			<category>console</category>
			<category>console 해상도</category>
			<category>frame buffer</category>
			<category>리눅스 해상도</category>
			<category>프레임 버퍼</category>
			<category>해상도</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/271</guid>
			<comments>http://www.otl.ne.kr/271#entry271comment</comments>
			<pubDate>Tue, 08 Mar 2011 01:59:41 +0900</pubDate>
		</item>
		<item>
			<title>YUM 서버를 DAUM으로 변경하기.</title>
			<link>http://www.otl.ne.kr/270</link>
			<description>repo파일수정 # vi /etc/yum.repos.d/CentOS-Base.repo 아래와 같이 입력해서 서버를 변경 :%s/mirrorlist=/#mirrorlist=/g :%s/#baseurl=/baseurl=/g :%s/mirror.centos.org/ftp.daum.net/g 펌&#039;d by 김석래 공부 노트</description>
			<category>::Configuration::</category>
			<category>ftp.daum.net</category>
			<category>yum</category>
			<category>yum server</category>
			<category>yum update</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/270</guid>
			<comments>http://www.otl.ne.kr/270#entry270comment</comments>
			<pubDate>Mon, 07 Mar 2011 18:19:05 +0900</pubDate>
		</item>
		<item>
			<title>[해결법]PUTTY를 사용하면 한글이 깨진다..</title>
			<link>http://www.otl.ne.kr/269</link>
			<description>﻿서버에 로그인해서 사용중인 캐릭터 셋(Character Set)를 확인 한다. # echo $LANG Putty 연결시 Window – Translation 에서 아래의 부분을 사용중인 캐릭터 셋으로 변경하면 됩니다. PS. 리눅스의 캐릭터 셋을 변경하는 방법은 http://otl.ne.kr/58를 참조 하도록 한다. 다른 ssh client에서도 동일하게 적용되며, 위치가 틀릴 뿐이다.</description>
			<category>::Others::</category>
			<category>Character set</category>
			<category>putty</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/269</guid>
			<comments>http://www.otl.ne.kr/269#entry269comment</comments>
			<pubDate>Mon, 07 Mar 2011 14:28:40 +0900</pubDate>
		</item>
		<item>
			<title>메일 발송 스크립트</title>
			<link>http://www.otl.ne.kr/268</link>
			<description>tail -10 /var/log/message | mail -s &quot;log message&quot; coriahn@otl.ne.kr&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>::Command::</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/268</guid>
			<comments>http://www.otl.ne.kr/268#entry268comment</comments>
			<pubDate>Fri, 28 Jan 2011 17:40:16 +0900</pubDate>
		</item>
		<item>
			<title>[BASH] 어제날짜를 구하고싶다, 지난달 날짜를 구하고 싶다</title>
			<link>http://www.otl.ne.kr/267</link>
			<description>오늘 날짜 [root@lin ~]# date +&#039;%Y%m%d&#039; 20110128 어제 날짜 [root@lin ~]# date -d &#039;1 day ago&#039; +&#039;%Y%m%d&#039; 20110127 이틀전 [root@lin ~]# date -d &#039;2 day ago&#039; +&#039;%Y%m%d&#039; 20110126 한달 이틀전 [root@lin ~]# date -d &#039;1 month ago 2 day ago&#039; +&#039;%Y%m%d&#039; 20101226 그렇다면 내일 날짜는 어떻게 알수 있을..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>::Command::</category>
			<category>bash</category>
			<category>date</category>
			<category>내일</category>
			<category>내일 날짜</category>
			<category>어제</category>
			<category>어제 날짜</category>
			<category>오늘</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/267</guid>
			<comments>http://www.otl.ne.kr/267#entry267comment</comments>
			<pubDate>Fri, 28 Jan 2011 15:12:13 +0900</pubDate>
		</item>
		<item>
			<title>[BASH] 문자열</title>
			<link>http://www.otl.ne.kr/266</link>
			<description>1. 패턴으로 문자열 자르기 1.1. 패턴에서 6번째 값 추출(/etc/passwd에서 홈 디렉토리 추출) # grep coriahn /etc/passwd | awk -F : &#039;{print $6}&#039; Awk을 이용해서 “:”를 구분자로 6번째 필드를 출력 1.2. 패턴에서 마지막 값 추출(패스에서 마지막 패스 추출) # echo ${PATH##*:} “:”를 구분자로 마지막값 출력 ##의 의미는 일단 미지수 1.3. 패턴에서 마지막 값 잘라내기(파일명..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>::Command::</category>
			<category>bash</category>
			<category>문자열</category>
			<category>분리</category>
			<category>패턴</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/266</guid>
			<comments>http://www.otl.ne.kr/266#entry266comment</comments>
			<pubDate>Fri, 28 Jan 2011 10:43:58 +0900</pubDate>
		</item>
		<item>
			<title>MSOffice2007을 수동으로 제거하는 법</title>
			<link>http://www.otl.ne.kr/265</link>
			<description>&quot;프로그램 추가/제거&quot; 기능을 사용하여 2007 Office System을 제거할 수 없는 경우 수동으로 제거하는 방법 이 문서에서는 제어판의 프로그램 추가/제거 기능(Windows Vista의 경우 프로그램 및 기능)을 사용하여 기존 2007 Microsoft Office System을 제거할 수 없는 경우 제거하는 방법에 대해 설명합니다. 먼저 프로그램 추가/제거를 사용하여 제거할 수 없는지 확인하는 것이 좋습니다. 2007 Microsoft O..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/265</guid>
			<comments>http://www.otl.ne.kr/265#entry265comment</comments>
			<pubDate>Tue, 25 Jan 2011 16:59:01 +0900</pubDate>
		</item>
		<item>
			<title>yum 설치 패키지 저장</title>
			<link>http://www.otl.ne.kr/264</link>
			<description>패키지 배포시 항상 yum이 되는것은 아니다, 그로 인해 관런 rpm을 받아야 하는 경우가 있다.. 그럴경우 yum 설치시 다운 받는 rpm을 저장하는 방법 설치중 /var/cache/yum/ 에서 복사해두면 된다. ----------------------------------------------------------------- 위에글이 너무 허접 한 관계로 추신.. # yum install yum-downloadonly # yum install..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>rpm</category>
			<category>rpm 받기</category>
			<category>yum</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/264</guid>
			<comments>http://www.otl.ne.kr/264#entry264comment</comments>
			<pubDate>Tue, 25 Jan 2011 10:10:52 +0900</pubDate>
		</item>
		<item>
			<title>리눅스 관리자가 알아두어야 할 50가지 &lt;수정요&gt;</title>
			<link>http://www.otl.ne.kr/263</link>
			<description>좋은내용이 많아서 일단 퍼오긴 했는데 수정해야할 부분도 있고, 내스타일대로 변경해봐야겠다.. 근데 언제 할지는 미지수.. ㅋㅋ 리눅스 시스템 관리자가 되기 위해서는 많은 것을 알아두어야 한다. 시스템 관리자의 관리 여하에 따라 많은 사람들의 시스템 장애를 초래할 수 있기 때문이다. 물론 시스템 관리자가 모든 것을 미리 예방할 수 없다. 하지만 불가피한 상황을 제외하고는 시스템이 정상적으로 작동되도록 해야한다. 이번호에는 시스템, 네트워크, APM,..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/263</guid>
			<comments>http://www.otl.ne.kr/263#entry263comment</comments>
			<pubDate>Wed, 19 Jan 2011 10:34:00 +0900</pubDate>
		</item>
		<item>
			<title>Solaris 10 Update 5 VNC 설정</title>
			<link>http://www.otl.ne.kr/262</link>
			<description>1. Solaris10 Update 5에서의 VNC 설정 Solaris10 Update 5 Version 부터는 VNC가 기본으로 설치 되어 있어 설정만 하면 사용할 수 있습니다. 1.1) Solaris10 release 확인 # cat /etc/release Solaris 10 10/09 s10x_u8wos_08a X86 Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. Use is subje..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>Solaris</category>
			<category>Solaris 10</category>
			<category>VNC</category>
			<category>솔라리스</category>
			<category>솔라리스 vnc</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/262</guid>
			<comments>http://www.otl.ne.kr/262#entry262comment</comments>
			<pubDate>Wed, 05 Jan 2011 10:20:40 +0900</pubDate>
		</item>
		<item>
			<title>yum group install</title>
			<link>http://www.otl.ne.kr/261</link>
			<description>yum 기능 중 groupinstall이라는 옵션이 있다. 이 기능을 이용하면 미리 설정된 패키지들을 손쉽게 설치할 수 있도록 해준다. 1. 그룹 목록 확인 [root@localhost ~]# yum grouplist Loaded plugins: fastestmirror Setting up Group Process Loading mirror speeds from cached hostfile * addons: data.nicehosting.co.kr..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>::Command::</category>
			<category>groupinstall</category>
			<category>yum</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/261</guid>
			<comments>http://www.otl.ne.kr/261#entry261comment</comments>
			<pubDate>Tue, 04 Jan 2011 14:39:48 +0900</pubDate>
		</item>
		<item>
			<title>[펌] [OpenSSL 프로그래밍] RSA (비 대칭키) 암호화</title>
			<link>http://www.otl.ne.kr/260</link>
			<description>프로젝트를 위해서 일단 퍼오기로 한다. 1. OpenSSL 이란 Secure Sockets Layer (SSL v2/v3) 와 Transport Layer Security (TLS v1) 프로토콜 뿐만 아니라 보다 강력한 암호화 라이브러리 제공을 위한 오픈 소스 toolkit 이다. 현재(2007년) 버전은 OpenSSL 0.9.8e 까지 나와 있는 상태이며, http://openssl.org/source 에서 소스를 받아 설치 할 수 있다. 2...&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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			<category>openssl</category>
			<category>openssl api</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/260</guid>
			<comments>http://www.otl.ne.kr/260#entry260comment</comments>
			<pubDate>Thu, 18 Nov 2010 04:51:59 +0900</pubDate>
		</item>
		<item>
			<title>[긴급]RHEL/CENTOS/DEBIAN 5 &amp; RHEL 6 / 에서 일반계정으로 쉽게 root 권한 획득하는 문제점 발견</title>
			<link>http://www.otl.ne.kr/259</link>
			<description>[긴급]RHEL/CENTOS/DEBIAN 5 &amp; RHEL 6 / 에서 일반계정으로 쉽게 root 권한 획득하는 문제점 발견 레드햇 보안 취약성으로 IMPORT 레벨로 일반계정으로 ROOT 권한을 획득할 수 있는 방법과 패치입니다. 패치 방법과 내용은 위의 URL을 참고하세요. &gt;&gt;&gt;절차 일반계정으로 접속후 아래와 같이 명령 진행 $ cd /tmp $ cat &gt; payload.c void __attribute__((constructor)) init()..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>3-6. 보안</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/259</guid>
			<comments>http://www.otl.ne.kr/259#entry259comment</comments>
			<pubDate>Thu, 21 Oct 2010 15:29:22 +0900</pubDate>
		</item>
		<item>
			<title>Centos 5.x에서 #make menuconfig가 안될때</title>
			<link>http://www.otl.ne.kr/257</link>
			<description>리눅스를 설치할때 기본으로 설치했더니.... 안깔린게 무쟈게 많다... 나같은 경우는 필요한 커널옵션이 있어서 소스컴파일하고 make menuconfig 하는 부문에서 발생했다. 에러의 원인은 make menuconfig 을 실행할때 먼저 커널소스에 /usr/src/linux/scripts/kconfig/lxdialog check-lxdialog.sh 를 실행해서 ncurses 헤더와 라이브러리가 설치되어 있는지 확인한뒤 없으면 에러메세지를 띄우고..&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>::Configuration::</category>
			<category>centos 5</category>
			<category>kernel compile error</category>
			<category>make menuconfig</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/257</guid>
			<comments>http://www.otl.ne.kr/257#entry257comment</comments>
			<pubDate>Thu, 07 Oct 2010 14:46:46 +0900</pubDate>
		</item>
		<item>
			<title>resolv.conf 의 설정이 초기화 된다.</title>
			<link>http://www.otl.ne.kr/256</link>
			<description>가상화 프로그램을 이용하여 아이피를 자동으로 하여 리눅스를 설치 후, 리눅스에 고정으로 아이피를 할당하고, resolv.conf파일을 수정하였지만, 재부팅후 설정이 리셋되어 있는 황당한 경우가 있다. resolv.conf 파일을 열어서 자세히 살펴보면.. 아래와 같은 메시지를 볼 수 있다. ; generated by /sbin/dhclient-script dhcp를 통해 아이피를 자동으로 할당 받을때 dhclient-script에 의해 resolv...&lt;div class=&quot;entry-ccl&quot; style=&quot;clear: both; text-align: right; margin-bottom: 10px&quot;&gt;
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</description>
			<category>::Configuration::</category>
			<category>resolv.conf</category>
			<category>resolv.conf 초기화</category>
			<author>coriahn</author>
			<guid>http://www.otl.ne.kr/256</guid>
			<comments>http://www.otl.ne.kr/256#entry256comment</comments>
			<pubDate>Sat, 18 Sep 2010 02:47:25 +0900</pubDate>
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