목록전체 글 (677)

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Cisco 라우터 config 자동 백업

1. TFTP 서버 구축 (CentOS 7 기준)# yum install tftp-server# vi /etc/xinetd.d/tftpserver_args = -c -s /home/configs/backups# systemctl restart xinetd - 서버 방화벽에서 udp 69 open 2. 라우터 설정R1(config)#archiveR1(config-archive)#path tftp:///$hR1(config-archive)#time-period 1440R1(config-archive)#write-memory
IT/System & Network 2018. 2. 14. 12:43
Linux NIC Bonding 구성

[ CentOS 7 ] # modprobe --first-time bonding# lsmod | grep bondingbonding 141566 0 # vi /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0NAME=bond0TYPE=BondBONDING_MASTER=yesBONDING_OPTS="mode=active-backup primary=eth0 miimon=100 updelay=0 downdelay=0"IPADDR=192.168.0.100PREFIX=24GATEWAY=192.168.0.1DNS1=168.126.63.1DNS2=168.126.63.2 # vi /etc/sysconfig/network-scripts/ifcfg-eth0NAME=bond-..
IT/System & Network 2018. 2. 9. 18:12
스위치 SNMP, Syslog 설정

- SNMP 설정Cisco(config)# access-list 3 permit 0.0.0.0Cisco(config)# access-list 3 deny anyCisco(config)# snmp-server community RO 3 - Syslog 설정Cisco(config)# loggin origin-id hostnameCisco(config)# logging host transport udp port Cisco(config)# logging trap warnings
IT/System & Network 2018. 2. 9. 14:04
CentOS 7에 graylog 설치 및 설정

https://youtu.be/di7vr1wQsCM
IT/Security 2018. 2. 7. 01:00
초보자를 위한 도커

초보자를 위한 도커- https://subicura.com/2017/01/19/docker-guide-for-beginners-1.html
IT/Cloud & DevOps 2018. 2. 6. 17:21
CoreOS 설치 in XenServer

http://richsitblog.com/index.php/2016/08/14/coreos-on-citrix-xenserver-7-setup-guide/
IT/System & Network 2018. 2. 6. 17:20
Graylog SonicWall 장비 log inpurt date convert 에러 관련

graylog input에 SonicWall 장비용 content pack을 적용하면 아래와 같은 에러가 발생하여 graylog의 시스템 로그가 폭증함 ERROR [Extractor] Could not apply converter [date] of extractor [4adc6467-3f78-427a-8fd1-39fc5a544c6f].java.lang.IllegalArgumentException: Invalid format: "id=firewall sn=XXXXXXXX time..."at org.joda.time.format.DateTimeFormatter.parseDateTime(DateTimeFormatter.java:945) ~[graylog.jar:?]at org.joda.time.DateTime..
IT/Security 2018. 2. 5. 14:08
Graylo Upgrade

$ wget https://packages.graylog2.org/releases/graylog-omnibus/ubuntu/graylog_latest.deb$ sudo graylog-ctl stop$ sudo dpkg -G -i graylog_latest.deb$ sudo graylog-ctl backup-etcd$ sudo graylog-ctl reconfigure$ sudo reboot http://docs.graylog.org/en/2.4/pages/configuration/graylog_ctl.html#upgrade-graylog-omnibus
IT/Security 2018. 2. 1. 11:30
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