Having the following error trying to install a unsigned package from Yum repository on CentOS/RHEL? Unless you get an officially signed package(s), you will need to override/accept the installation of unsigned package (if you trust the source/issuer, of course). If installing a locally located rpm file(s), you may use the command “rpm -ivh package-name.rpm“. If… Read More »
Since the latest Windows Updates, you might be encountering the following error when you RDP to another computer or server : An authentication error has occurred. The function requested is not supported Remote computer: This could be due to CredSSP encryption oracle remediation. For more information, see https://goomicrosoft.com/fwlink/?linkid=866660 This is basically due to the fact… Read More »
Microsoft made a lot of improvement on Terminal Services compared to the previous versions. They also made it more complete and complex than just for single servers. Therefore, you might be in a situation where you do not need all the bells and whistles it provides, if you just want to increase the number of… Read More »
If you have encountered the following error message trying to migrate or synchronize an IMAP mailbox using the great IMAPsync.pl script : Host1: mail1.domain.tld says it has NO CAPABILITY for AUTHENTICATE LOGIN Then you may want to look at the following : – Bad credentials – Special character in the password that need to be… Read More »
If you already have a certificate generated by a certificate authority (or maybe a wildcard certificate), you can use the following procedure to configure it on your iDRAC, so you can get rid of the browser security warning. We will use the iDRAC “racadm” command line utility (if you do not have it already, you… Read More »
Having the following issue connecting to a device using SSH after upgrading to macOS High Sierra 10.13.2? Unable to negotiate with 0.0.0.0 port 22: no matching cipher found. Their offer: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se This is an expected behavior if you attempt to connect to a legacy system or network device running older version of SSH. To workaround… Read More »
Here is how to quickly show the connected clients to a NFS server. It might be useful to know before rebooting the server! On the server, execute the following command (replace <> with the NFS server IP address) : netstat -an | grep <NFS.Server.IP>:2049 Example : netstat -an | grep 192.168.45.32:2049 You should see a… Read More »
On Debian 9, the traditional “rc.local” has been deprecated. For traditional Linux users and administrators, there is a way to get it back using SystemD. See the procedure below : 1. Edit the non-existing file “rc-local.service” : vi /etc/systemd/system/rc-local.service 1.1. Add the following content to “/etc/systemd/system/rc-local.service” : [Unit] Description=/etc/rc.local ConditionPathExists=/etc/rc.local [Service] Type=forking ExecStart=/etc/rc.local start TimeoutSec=0… Read More »
Having the following error while executing a R1Soft backup on a Linux server? Failed backup of LVM configuration Failed to execute command ‘lvm.static pvs -o pv_fmt,pv_uuid,dev_size,pv_name,pv_mda_free,pv_mda_size,pv_all,seg_all,pvseg_all,vg_all,lv_all –nameprefixes –noheadings –units b –nosuffix –unquoted’ This seem to be related to the latest version. Apparently Idera are aware of the issue and working on a permanent fix. In… Read More »
You probably experienced the following issue, running “Yum update” on a RHEL 7.3 system : error: Failed to initialize NSS library There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: cannot import name ts Please install a package which provides this module, or… Read More »