목록전체 글 (677)

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Graylog 로그 저장 기간 설정

- graylog.conf 에 아래 내용 추가elasticsearch_max_time_per_index = 7delasticsearch_max_number_of_indices = 180
IT/Security 2018. 1. 11. 00:00
CentOS에서 NIC RTNETLINK answers: File exists 오류

MAC Address 가 지정되지 않아서 발생할 ifconfig 에서 mac address 확인 후 /etc/sysconfig/network-scripts/ifcfg-eth0 에 HWADDR="xx.xx.xx.xx.xx.xx" 지정 후네트워크 재시작
IT/System & Network 2018. 1. 8. 15:37
Running VirtualBox in a Xen Environment is not supported 오류 시

Xen 가상 머신에 Virtualbox 를 설치하고 실행하면 때 아래와 같은 에러가 나는 경우가 있다.failed: Running VirtualBox in a Xen Environment is not supported. 이 때sudo apt-get install dkmssudo apt-get install --reinstall virtualbox-dkms
IT/System & Network 2018. 1. 6. 20:03
OpenSSL 인증서 관련

https://code.i-harness.com/ko/q/d18bdahttps://www.securesign.kr/guides/SSL-Certificate-Convert-Format
IT/Security 2018. 1. 3. 14:13
Graylog 관련 자료

- 설치 및 설정 방법http://www.sauru.so/blog/calling-all-logs-graylog2-installation/ - graylog-ctlhttp://docs.graylog.org/en/2.3/pages/configuration/graylog_ctl.html
IT/Security 2017. 12. 28. 11:31
rsyslog 원격 로그 저장 template

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/s1-configuring_rsyslog_on_a_logging_server
IT/System & Network 2017. 12. 27. 17:10
DHCP failover in Linux

- Primary Servervi /etc/dhcp/dhcpd.failover# Failover specific configurations failover peer “dhcp” {primary;address 192.168.10.1;port 647;peer address 192.168.10.2;peer port 647;max-response-delay 60;max-unacked-updates 10;mclt 600;split 128;load balance max seconds 3;} - Secondary Servervi /etc/dhcp/dhcpd.failover failover peer “dhcp” {secondary;address 192.168.10.2;port 647;peer address 192.16..
IT/System & Network 2017. 12. 18. 14:43
Google Apps, LDAP 연동 관련

- .GADS 이용 https://lqez.github.io/blog/sync-ldap-to-google-apps-account-via-gads.html - Synology NAS / Google Apps 연동 (GADS)https://www.synology.com/ko-kr/knowledgebase/DSM/tutorial/Application/How_to_sync_LDAP_data_on_Synology_NAS_to_Google_Apps_with_Google_Apps_Directory_Sync - GCDS 이용https://support.google.com/a/answer/106368?hl=ko
IT/System & Network 2017. 12. 16. 18:44
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