歷史文章::JohnChen

改密碼 script

2013-11-01 15:05

(echo "pidcVOICE01" sleep 1 echo "pidcVOICE02" sleep 1 echo "pidcVOICE02")|passwd2 -c (echo "pidcVOICE01" sleep 1 echo "pidcVOICE02" sleep 1 echo "pidcVOICE02")|passwd2

1. emca -repos drop [oracle@voipdb2 ~]$ emca -repos drop STARTED EMCA at Nov 1, 2013 1:00:22 AM EM Configuration Assistant, Version 11.2.0.3.0 Production Copyright (c) 2003, 2011, Oracle. All rights reserved. Enter the following...

failed: Can't load '/usr/local/lib64/perl5/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle

2013-10-15 15:24

# /usr/local/nagios/libexec/check_oracle_health --connect=dbtest --user=calvin --password=calvin --mode=tnsping CRITICAL - cannot connect to dbtest. install_driver(Oracle) failed: Can't load '/usr/local/lib64/perl5/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle: libclntsh.so.11.1:...

Setup Local Yum Repository on CentOS / RHEL / Scientific Linux 6.4

2013-10-08 14:06

[root@server Packages]# rpm -ivh libxml2-python-2.7.6-8.el6_3.4.i686.rpm [root@server Packages]# rpm -ivh deltarpm-3.5-0.5.20090913git.el6.i686.rpm [root@server Packages]# rpm -ivh python-deltarpm-3.5-0.5.20090913git.el6.i686.rpm [root@server Packages]# rpm -ivh...

error while loading shared libraries: libssl.so.6

2013-10-07 15:24

SOLVED for 32bit 1 2 ln -sf /usr/lib/libssl.so.10 /usr/lib/libssl.so.6 ln -sf /usr/lib/libcrypto.so.10 /usr/lib/libcrypto.so.6 for...

出現了這個錯誤Skipping clustered volume group ，如何處理?

2013-10-06 04:02

However, a local volume group has been incorrectly set up as clustered, and there isnot a cluster set up for the locking, when unset the cluster flag is attempted to be removed, vgchange will print out "Skipping cluster volume group." In order to fix this, edit the /etc/lvm/lvm.conf file...

PVS

2013-10-03 18:44

# pvs -o+pv_usedPV VG Fmt Attr PSize PFree Used /dev/sdc1 vg0 lvm2 a- 74.53g 74.53g 0 /dev/sdd1 vg0 lvm2 a- 74.53g 0 74.53g /dev/sde1 vg0 lvm2 a- 74.53g 39.06g 35.47g

RRD type

2013-10-02 11:48

Ø COUNTER ：必須是遞增的，除非是計數器溢出（overflows）。在這種情況下，RRDtool 會自動修改收到的值。例如網絡接口流量、收到的packets 數量都屬於這一類型。 Ø DERIVE：和 COUNTER 類似。但可以是遞增，也可以遞減，或者一會增加一會兒減少。 Ø ABSOLUTE ：ABSOLUTE...

tcpdump

2013-10-01 12:23

tcpdump 可用來擷取通過某網路介面的封包。（需有 root 權限！）這個很久以前上課就有教了，但都沒啥用到！最近因為要查 Mail Server 為啥無法寄信，才又重新上網找了一下相關資料。參考：鳥哥、Tsung Blog、510CTO 基本選項有：．-n：以數字顯示，不對 IP 作反解，但仍顯示服務名稱。．-nn：直接以 IP 及 port number 顯示，而非主機名與服務名稱。．-p：不要以 promiscuous mode 執行。．-t：不要顯示 timestamp。．-i：指令要監控的網路介面，如 eth0、lo、any 等。．-e：使用資料連接層 (OSI...

TCP ping & UDP ping

2013-09-16 16:41

for TCP pings it is : watch -n 5 "nmap -P0 -sT -p5666 somehostname.dyndns.org" for UDP pings it is almost the same: watch -n 5 "nmap -P0 -sU -p5666 somehostname.dyndns.org"

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