Starting with Windows Server 2008 R2/2012, the fancy remote management feature may return the following error when adding to your centralized Server Manager console : Computer <NAME> cannot be managed. Verify that the network path is correct, the computer is available on the network and that the appropriate Windows Firewall rules are enabled on the… Read More »
Here is a quick how to reset Cisco ASA (Adaptative Security Appliance) to factory default. You will need a serial console access to achieve this task. 1. At early boot process, just hit escape [esc] key when suggested as followed : Cisco Systems ROMMON Version (1.0(12)13) #0: Thu Aug 28 15:55:27 PDT 2008 Platform ASA5505… Read More »
If you have a large amount of data to transfer over the network to another server, Rsync is definately a good way to go. However, since Rsync is using SSH, data encryption can add an extra bottle neck to your speed transfer. You may want to disable encryption if you are transfering locally or if… Read More »
ownCloud synchronization clients for desktop operating system can be found here. You can install and setup your account across multiple computers, share and synchronize folders regardless the operating system theses computers are running. The 2ways synchronization mechanism ensure you can work simultaneously from anywhere, copying files at the same time. In case a conflict is found,… Read More »
Follow this quick tutorial to enable SSH access instead of Telnet and create a unprivileged user on Cisco IOS. 1. Enter in “Privilege EXEC” mode : enable 2. Enter in “Global Configuration” mode : conf t 3. Use the following commands to enable SSH, generate RSA keys and create the username/password : hostname <HOSTNAME> domain-name <FQDN.DOMAIN.TLD>… Read More »
Oracle Cluster File System 2 (well known as OCFS2) is a pretty decent choice when come to chose a filesystem that need to be accessed and written using several server nodes. Unfortunately, RedHat do not support by default OCFS2 in their kernel since they are using GFS instead. I am not aware of any unofficial… Read More »
Having this error on your R1Soft policy for a one or several servers? Error replicating device <PARTITION_MOUNTPOINT> (<PARTITION_UUID>) Protocol error, expected request finished Encountered <0000> read failures! Snapshot failed with error ‘FILE IO ERROR’! An exception occurred during the request. Backup failed due to snapshot error! The next replication will force a full block scan. This is likely… Read More »
Have you encountered the following error starting MySQL server on a new machine that you’ve copied over the databases folder from another server? 140612 21:38:29 mysqld started 140612 21:38:29 InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB:… Read More »
Having problem setting LACP interface on JunOS and got this “error: device ae0 not found” message? root@EX4200> show lacp interfaces ae0 error: device ae0 not found First, make sure the LACP interface members are properly configured : set interfaces ge-0/0/0 ether-options 802.3ad ae0 set interfaces ge-0/0/0 description “<OPTIONAL_DESCRIPTION>” set interfaces ge-0/0/1 ether-options 802.3ad ae0 set… Read More »
I had this interesting issue lately on Windows Server 2008 R2 where the shared printer just vanishing from the directory/shares on and off. Here is what I did to resolve this issue. If you do not have the Print Server role installed, you will need the Print Management Tools to actually view all your printers.… Read More »