loop command in linux
[root@bt1 ~]# for ((i=1;i<=14;i+=1)); do scp -r /etc/krb5.conf bc$i:/etc/; done
設定使用者目錄 Sites 權限為 webservers 可讀寫
# ls /home/ | xargs -i find ‘{}’/Sites -type d | xargs -i fs setacl ‘{}’ webservers write 首先列出使用者目錄. 將該輸出傳到find找目錄的參數. 在將此輸出導到 fs …
gOS 初體驗
前幾天, 我在網路上逛到 gOS. 就被它的圖形界面吸引住了. 他有很多可愛的 icons. 還能展開像 Leopard 扇形那樣的界面. 就抓下來玩玩. gOS 的模樣 gOS 它是建構在 Ubuntu 之上. 理論上應該是很容易使用. 不過我不太熟悉. 我比較熟悉 RedHat 系統.
Single Sign On with Kerberos V
這篇文章假設你已經有 Kerberos 伺服器. 也假設你建立好 Kerberos 使用者帳號. 在開始設定 SSO(Single Sign On) 之前必需先設定與網路時間協定(ntp)同步. 否則無法自動登入 先在 Kerberos 伺服器上產生對應的電腦 key. [root@kerberos ~]# kadmin Authenticating as principal …
查詢 rpm 部署檔案的路徑
例如, 我有個 AdobeReader_enu-8.1.2-1.i486.rpm 在安裝前我想知道它將會寫到哪裡. 就可以下 ： rpm -qlp AdobeReader_enu-8.1.2-1.i486.rpm /opt/Adobe /opt/Adobe/Help …(omit)
openafs compile and load libafs
cd /usr/src/openafs-kernel-1.4.4/src/ ./configure make cp /usr/src/openafs-kernel-1.4.4/src/src/libafs/MODLOAD-2.6.9-67.0.4.ELsmp-MP/libafs.ko /lib/modules/2.6.9-67.0.4.ELsmp/kernel/fs/openafs/libafs.ko vi /lib/modules/2.6.9-67.0.4.ELsmp/modules.dep ## add /lib/modules/2.6.9-67.0.4.ELsmp/kernel/fs/openafs/libafs.ko: to modules.dep file modprobe libafs
[linux notes] to bind remote port as local port through ssh tunnel
Here is an example to demonstrate binding remote port as local port through ssh tunnel. I would like to connect port number …
How can I configure a system as an NFS server which sits behind a firewall with NFS clients outside of the firewall?
http://kbase.redhat.com/faq/FAQ_85_5928.shtm Resolution: Release Found: Red Hat Enterprise Linux 4 Symptom: NFS relies on portmap to assign the ports on which it will …
[linux notes] CA
mkdir /var/myca cd /var/myca vi /etc/ssl/openssl.cnf /usr/share/ssl/misc/CA -newca openssl req -newkey rsa:1024 -nodes -keyout newreq.pem -out newreq.pem /usr/share/ssl/misc/CA -sign openssl x509 -in …
sendmail Deferred: Connection refused by localhost.localdomain.
sendmail -v me@mydomain.com < /dev/null To change sendmail.cf line. From: O DaemonPortOptions=Port=smtp,Address=127.0.0.1, Name=MTA To: O DaemonPortOptions=Port=smtp, Name=MTA