OS75 네트워크 정상 통신체크 / linux / telnet / nc / curl / dev/tcp ■ 환경 - linux 환경 - telnet , nc, curl 등 프로그램 설치된환경 ■ 목적 - 출발지에서 목적지까지의 네트워크 통신가능여부 확인용 ■ 방법 ● 목적지 IP : 192.168.0.194 ● 목적지 PORT : 9100 구분 통신이 정상적인 상태인 경우 통신이 불가능한 상태인 경우 telnet [root@linux ~]# telnet 192.168.0.194 9100 Trying 192.168.0.194... Connected to 192.168.0.194. Escape character is '^]'. [root@linux ~]# telnet 192.168.0.194 9100 Trying 192.168.0.194... 응답없음 nc [root@linux ~]# nc -zv 192.16.. 2023. 9. 21. crontab / delete / send mail [oracle@localhost ~]$ crontab -l # DO NOT EDIT THIS FILE - edit the master and reinstall. # (/tmp/crontab.XXXXNWtSJ7 installed on Wed Feb 3 00:59:50 2016) # (Cron version V5.0 -- $Id: crontab.c,v 1.12 2004/01/23 18:56:42 vixie Exp $) #backup start every day 2:10 0 1 * * * /data/oracle/backup/cronbackup.sh #delete start every day 4 hours 0 4 * * * find /data/oracle/backup/dump/ -print -atime +2 -.. 2023. 9. 6. windows / bat / script C:\Users\KJH λ cd C:\Users\KJH\Desktop\새 폴더 (4) λ cat 100_.bat call 101_.bat call 102_.bat λ cat 101_.bat copy /y a.txt b.txt timeout 5 λ cat 102_.bat copy /y a.txt c.txt 2023. 6. 29. SSO / SSL / jdk.tls.disabledAlgorithms SSO 관련오류 해결 ㅁ환경 OS : Ubuntu 20.04.3 LTS jdk : open jdk 1.8.0_312 /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security 704line (변경전) jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA, \ DH keySize 2022. 2. 15. 이전 1 2 3 4 5 6 7 ··· 19 다음 반응형
