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Certificates and Encodings At its core an X.509 certificate is a digital document that has been encoded and/or digitally signed according to RFC 5280. In fact, the term X.509 certificate usually refers to the IETF’s PKIX Certificate and CRL Profile of the X.509 v3 certificate standard, as specified in RFC 5280, commonly referred to as […] Multipath config status check in Linux Using dmsetup command: # ls -lrt /dev/mapper //To View the Mapper disk paths and Lvols #dmsetup table #dmsetup ls #dmsetup status Using Multipathd Command ( Daemon ) #echo ‘show paths’ |multipathd -k #echo ‘show maps’ |multipathd -k Explained multipathd below: A.DISPLAY PATH STATUS Multipathd has a mode (the […] Although the server’s ILOM has a redirection feature that allows you to do this, you can also redirect the server console to the serial port by doing the following for either Red Hat (RHEL) or Suse (SLES):
1. Add the following line in /etc/inittab file (for SLES, this line might already exist but be […] # cd /etc # rm localtime //delete the existing localtime file Check the available time zones in US # ls /usr/share/zoneinfo/US/ Alaska Arizona Eastern Hawaii Michigan Pacific Aleutian Central East-Indiana Indiana-Starke Mountain Samoa Note: For other country timezones, browse the /usr/share/zoneinfo directory Now we can change the time zone using below step
# […] ML, DL & BL indicate the families for HPs lineup of Industry Standard Servers: ProLiant. BL = Blades= HP BladeSystem. Up to 16 server &/or storge blades + Networking, sharing power and cooling in 10u enclosure DL = Density LIne = Rack mount ProLiant server. Here, HP puts as many features as possible in as […] You have to keep in mind when you installed Linux that the installation process prompted you for a list of partitions & the sizes of each in which your filesystems would be placed. 1. When apportioning disk space for the partitions, the first sector, or knowledge unit, for each partition is always reserved for programmable […] Edit file /etc/sysconfig/network-scripts/ifcfg-eth0. DEVICE=eth0 BOOTPROTO=static BROADCAST=192.168.0.255 HWADDR=00:00:00:00:00:00 IPADDR=192.168.10.2 NETMASK=255.255.255.0 NETWORK=192.168.10.0 ONBOOT=yes TYPE=Ethernet GATEWAY=192.168.10.1
Make a copy of this in the same directory naming the new file ifcfg-eth0:1 # cp ifcfg-eth0 ifcfg-eth0\:1
Modify /etc/sysconfig/network-scripts/ifcfg-eth0:1 file. Modification are in bold DEVICE=eth0:1 BOOTPROTO=static BROADCAST=192.168.0.255 HWADDR=00:00:00:00:00:00 IPADDR=192.168.10.101 NETMASK=255.255.255.0 NETWORK=192.168.10.0 ONBOOT=yes TYPE=Ethernet GATEWAY=192.168.10.1 # cp ifcfg-eth0\:1 /etc/sysconfig/networking/devices/ […] RSync backups data and does it very clean and well. Rsync only transfers those data that have been modified and changed so that the destination host has an exact replica from the source host. Rysnc is a command line backup tool that handles data transfers in an effective and secure manner like any other known […] For RHEL/Fedora distribution To remember the last 5 passwords, add the line below to the file /etc/pam.d/system-auth file: password sufficient /lib/security/pam_unix.so use_authtok md5 shadow remember=5 For Debian/ubuntu distribution To remember the last 5 passwords, add the line below to the file /etc/pam.d/common-password file: password sufficient /lib/security/pam_unix.so use_authtok md5 shadow remember=5 * For SH/BASH/TCSH Below script will implement a 5 minute idle time-out for the default /bin/bash shell. Step 1: Create file autologut.sh # vi /etc/profile.d/autologout.sh Add New Append the following code: TMOUT=300 readonly TMOUT export TMOUT Step 2: Save and close the file. Set permissions: # chmod +x /etc/profile.d/autologout.sh
*For tcsh version follow the […] |
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