Check if open SMTP connection is closed/timed out
clarkk asked: Is it possible to send some sort of ping to a SMTP server to check if the connection is still open and ready to send a mail The …
GEt alsl virsh configs
Cutton Eye asked: I’ve several qemu vm’s managed with virsh. I’ve already created a backup of the images. Now I want to create a backup of the config files. How …
Someone is sending email from my address. How can I prevent this from happening
Toolkit asked: I received a bunch of Mail delivery failed: returning message to sender messages and found out that someone is sending this email to random addresses: Today we are …
How Akamai CDN serves the content from closes edge server to user ?a
user3198603 asked: After going through some resources on google, got the idea how Akamai CDN edge servers works but got some questions about internals. Say I have got static content …
How can I verify my vserver provider offers SSD as promised?
humanityANDpeace asked: For this month I have rented two vServer, each from a different provider. Both indicated that the disks of the system use SSD technology (making me expect a …
Check if HTTP Methods have been Allowed and Enabled on Localhost
Joe asked: I’m running Apache/2.2.15 (Unix) on a RHEL system. My LAMP is running on localhost. I want to check if the HTTP methods: POST GET PUT DELETE are allowed …
Postfix discard not working properly
Jayman8543 asked: I have set up some bad phrases to look for inside the body_checks file. I’m not sure if I should post them here b/c of the nature of …
IPv6 routing between Host and Guest
alestark asked: I am currently facing an issue about my current setup. I basically have a dedicated server to which a /64 IPv6 subnet have been assigned (2a01:4f8:221:1e81::/64). Connectivity on …
XenServer 8.0 running a NTP client in guest PVHVM VM
zyash asked: I would like to run a NTP client in a Xen Linux VM under XenServer (XCP-NG 8.0 to be precise). The Linux VM, Debian Stretch 9.9 (uname -a: …
firwalld on VPS without nf_conntrack kernel module
chrisl asked: I’m running a VPS of a german provider and want to switch from Ubuntu to CentOS. There I tried to install firewalld (was not preinstalled), but it always …