Best way to forward KVM guest to the internets
I want to be able to ssh into guest as easily as in host. What is the best way to do this? submitted by otac_jedini [link][4 comments]
View Articlerpm queryformat octal output
Hello Everyone,Hopefully there is a quick and easy solution for this one. I've writing a script that uses $(rpm -Va | grep '.M') to check for files that differ from what is expected in the RPM...
View ArticleStudying for my RHCSA / Release of RHEL7
I just purchased Jang's study guide and I had planned on taking my exam in November. How long do you think it will take them to switch the format of the exam over to RHEL7? submitted by chadsy_...
View ArticleHas anyone gotten memory ballooning to work in Ubuntu (KVM/libvirt)?
I asked over on the Ubuntu forums a while ago, and never received a response.Long story short, if I set the "current memory" of the guest really low, I can see the memory ballooning during BIOS...
View ArticleIs true that rsync and find can delete files faster?
I found this on quora http://www.quora.com/File-Systems/How-can-someone-rapidly-delete-400-000-filesIf you had a large number of files Is it better to use rsync or find ? Like to know if anyone tested...
View ArticleP2V an old Oracle Linux server
Hi,We have an old development server running Oracle Enterprise Linux that we need to virtualize for VSphere. The server is running Red Hat Enterprise Linux AS release 4 (Nahant Update 8).I have...
View ArticleYum update crashing my OpenVPN tunnels
0 down vote favoriteI have 100's of CentOS 5.10 clients that I access through a OpenVPN connection. I have internal repo that they use for updates.However some of my clients have some serious issues...
View ArticleKijiji email notifications
So kijiji is a buy-sell website with multiple different sections depending on the product you want to buy (obviously...). Now I would like setup a script or something (the means is why I am here, I...
View ArticleAre RHCSA and RHCE Exams hard for experienced admins?
I've worked with BSD and Linux for almost 11 years now, professionally. The last year RHEL6, it's very new to me and it has been fun and exciting to learn it. There's always more to learn but so far...
View ArticleRsync backup and prevent file deletion
I have 2 servers, each will have logging data sent to it and I want to rsync that data between each other for offsite backup of the data. So server A will have a set of logs and I want that rsynced to...
View ArticleRHCSA
Are the classes worth the $3,400 price tag? I've been thinking of taking it. I've been an admin for almost a year now. submitted by Razzamafoo [link][11 comments]
View ArticleHelp on sharing a folder between two KVMs
I've been experimenting with KVMs this past week which means I'm very new to the topic, so bear with me if I'm talking nonsense. So I have an old computer that I'm testing with. I've installed Proxmox...
View ArticleRadius Help
I posted this to /r/sysadmin a few days ago, but didn't get any responses.I'm investigating deploying a Radius server (FreeRadius on CentOS 5) and looking for a good config guide. Basically looking at...
View ArticleUbuntu Headless Server - Remote Access Question
I have a dedicated Ubuntu server installed on an always on machine in my home. SSH is installed as well and I can connect to my server via my windows laptop through the PuTTY and webmin clients while...
View ArticleBare Metal Provisioning
I've been tasked with setting up a PXE bare metal, unattended installation system for Ubuntu and CentOS hosts.I've played a bit with cobbler, where CentOS works great but Ubuntu is unable to find the...
View ArticleSome help understanding postfix
So I need to run a postfix server that relays mail to a users personal email account (i.e. user@domain.com -> user@gmail.com). I think I have it set up correctly, but want to double check a few...
View ArticleGetting an NFS client to aggressively pre-cache RO system to RAM or swap
A common NFS solution used to be mounting /usr RO on clients (I realize that with systemd, this doesn't really fly anymore). If I wanted to do something similar to this with about 1GB in a read-only...
View ArticleRemote syslogd security?
I'm just curious about how secure the setup of the built-in syslogd service is (on Ubuntu 12.04).I was hoping to be able to firewall the server off to only accept messages from whitelisted clients, but...
View ArticleRecombining two mdadm arrays
Is there any way to recombine separated MDADM arrays back into a single array? Due to the flakiness of the storage drives I've purchased (WD Reds) I've been forced to restore the GPT partition table on...
View ArticleKnockd question - Help I'm stumped.
I've been doing alot of reading about knockd since I'm setting up a home server and want it to be secure. I only want to open ports on demand. The question I have is, is it possible to only accept...
View Article