분류 전체보기: 187개의 글

[보안장비-Security] Xnsystem Neobox X4b 초기화방법 (Recovery)

Posted by nkjok
2024. 3. 27. 11:13 네트워크-Router, Switch, Security/보안장비-Security
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XN VPN 초기화 방법

setup factory_default clean

reboot now really

ID/PW 입력

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[스위치-Switch] CISCO C2950 스위치 초기화방법 (Recovery)

Posted by nkjok
2024. 3. 22. 10:19 네트워크-Router, Switch, Security/스위치-Switch
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초기화 방법(요약)
1) MODE + 전원 ON 
2) switch: flash_init 
3) switch: rename flash:/config.text flash:/tempconfig.text 
4) switch: boot

- 설명추가
1) 장비 하드웨어의 MODE 누르고 있는 상태로 전원 ON 
2) switch: 프롬프트가 출력되면 MODE에 있는 손을 제거하고 flash_init 입력
3) switch: rename flash:/config.text flash:/tempconfig.text 
4) switch: boot 입력하면 재부팅 후 초기화 된 스위치를 확인할 수 있다



------------아래는 참고용 실제 작업 로그 
switch: d fl  flash_init

Initializing Flash...

flashfs[0]: 20 files, 2 directories

flashfs[0]: 0 orphaned files, 0 orphaned directories

flashfs[0]: Total bytes: 7741440

flashfs[0]: Bytes used: 4874752

flashfs[0]: Bytes available: 2866688

flashfs[0]: flashfs fsck took 7 seconds.

...done initializing flash.

Boot Sector Filesystem (bs:) installed, fsid: 3

Parameter Block Filesystem (pb:) installed, fsid: 4

switch: rename flash:/config.tes xt flash:/router

switch: 

switch: 

switch: 

switch: dir


List of filesystems currently registered:


               flash[0]: (read-write)

              xmodem[1]: (read-only)

                null[2]: (read-write)

                  bs[3]: (read-only)


switch: boot

Loading "flash:/c2950-i6q4l2-mz.121-13.EA1.bin"...#################################################################################################################################################################################################################################################################################################################################


File "flash:/c2950-i6q4l2-mz.121-13.EA1.bin" uncompressed and installed, entry point: 0x80010000

executing...


              Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706



Cisco Internetwork Operating System Software 
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Tue 04-Mar-03 02:14 by yenanh
Image text-base: 0x80010000, data-base: 0x805A8000


Initializing flashfs...
flashfs[1]: 20 files, 2 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 7741440
flashfs[1]: Bytes used: 4874752
flashfs[1]: Bytes available: 2866688
flashfs[1]: flashfs fsck took 7 seconds.
flashfs[1]: Initialization complete.
Done initializing flashfs.
POST: System Board Test : Passed
POST: Ethernet Controller Test : Passed
ASIC Initialization Passed

POST: FRONT-END LOOPBACK TEST : Passed
cisco WS-C2950-24 (RC32300) processor (revision J0) with 20839K bytes of memory.
Processor board ID FOC0728W0RM
Last reset from system-reset
Running Standard Image
24 FastEthernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0D:65:52:C1:00
Motherboard assembly number: 73-5781-11
Power supply part number: 34-0965-01
Motherboard serial number: FOC07271RLK
Power supply serial number: DAB072780FR
Model revision number: J0
Motherboard revision number: A0
Model number: WS-C2950-24
System serial number: FOC0728W0RM


         --- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]: 
00:00:14: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:17: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software 
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Tue 04-Mar-03 02:14 by yenanh
00:00:21: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up
00:00:22: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
% Please answer 'yes' or 'no'.
Would you like to enter the initial configuration dialog? [yes/no]: 
% Please answer 'yes' or 'no'.
Would you like to enter the initial configuration dialog? [yes/no]: n



Press RETURN to get started!


Switch>
Switch>
Switch>
Switch>
Switch>
Switch>en
Switch#

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[게임] 코에이 삼국지 6

Posted by nkjok
2022. 11. 1. 21:57 자료실/기타-자료실
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명작게임 삼국지 6

- 저작권에 침해된다면 삭제 권고 부탁드립니다.

 

Sam6pk.z01
19.53MB
Sam6pk.z02
19.53MB
Sam6pk.zip
17.21MB

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[3CDaemon] 시스코 스위치 (Cisco Switch) 의 3C데몬 TFTP를 이용한 OS 전송 및 업그레이드 (펌웨어 업데이트)

Posted by nkjok
2022. 9. 14. 19:17 네트워크-Router, Switch, Security
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프로그램 실행하고 OS가 있는 폴더를 지정한다.

 

GO를 클릭한다.

GO를 클릭한 화면

 

여기까지가 3C데몬을 이용하여 1개의 PC를 TFTP 서버로 활성화한 상태이다.

 

 

 

 

 

시스코 스위치에서 아래 명령어를 입력한다.

POS3650_3F_36#copy tftp flash:
Address or name of remote host [10.197.240.100]? 
Source filename [cat3k_caa-universalk9.16.09.06.SPA]? cat3k_caa-universalk9.16.09.06.SPA.bin
Destination filename [cat3k_caa-universalk9.16.09.06.SPA.bin]? 
Accessing tftp://10.197.240.100/cat3k_caa-universalk9.16.09.06.SPA.bin...
Loading cat3k_caa-universalk9.16.09.06.SPA.bin from 10.197.240.100 (via Vlan240): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 450568480 bytes]

copy tftp flash: 명령어를 입력하고 서버IP, 파일명을 입력하고 엔터엔터... 하면 !!!를 출력하며 파일이 전송된다.

3C데몬에서 Bytes가 상승하는 것을 확인 할 수 있다.

 

 

 

 

데이터가 전송이 완료 될 때까지 기다린다.

완료 이후 스위치에서 boot system switch all flash:cat3k_caa-universalk9.16.09.06.SPA.bin 명령어로 부팅OS를 지정하고 재부팅한다

재부팅 명령어 : reload

 

 

 

 

재부팅 전 버전

 

재부팅 후 버전

show version 명령어를 통해 OS 버전이 업그레이드 된 것을 확인 할 수 있다.

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[긴급] 알약 랜섬웨어 오탐 이슈 해결방법

Posted by nkjok
2022. 8. 30. 18:21 낙서장/주저리-주저리
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[리눅스] Firewalld 사용법 [기초]

Posted by nkjok
2022. 8. 22. 17:00 OS&기타/Linux
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firewall-cmd --permanent --add-service=https
firewall-cmd --permanent --add-port=443/tcp
firewall-cmd --reload
firewall-cmd --list-all
#
[root@localhost ~]# firewall-cmd --list-all
 public (active)
 target: default 
 icmp-block-inversion: no
 interfaces: wlp1s0
 sources:
 services: dhcpv6-client http https mysql ssh
 ports: 443/tcp 80/tcp
 protocols:
 masquerade: no
 forward-ports:
 source-ports:
 icmp-blocks:
 rich rules:
#

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[리눅스] IPTABLES 사용법 -3 [범위지정]

Posted by nkjok
2022. 8. 22. 16:58 OS&기타/Linux
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iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport 22:30 -j DROP
순차 적용으로 인해 22 포트는 허용, 23~30 포트는 차단 
(-s 출발지 -d 목적지)
iptables -nL --line-number
iptables -D INPUT 6

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[정처기 실기] C언어로 Printf 를 이용한 자기소개 출력하기

Posted by nkjok
2022. 8. 22. 16:31 낙서장/정처기 실기
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#include <stdio.h>

int main(void)

{

printf("********************\n");

printf("소속 : 코딩스쿨\n");

printf("이름 : 김코딩\n");

printf("********************\n");

return 0;

}

 

 

===결과는 아래

 

***************
소속 : 코딩스쿨
이름 : 김코딩
***************

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