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[Question] What is the best route for a relative newcomer to system...

You can ignore my background if you like. The following is broken up so you don't have to read a big wall of text just to get to my questions. Thanks in advance.Who I Am / General BackgroundI have a...

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throttle disk io of whole server

Hi guys,i have to throttle the disk io of a whole sles 11 system. I know the tool ionice, but it works per process.is there any way to throttle the whole disk io of the whole system to a specified...

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Blocking a specific DNS query with iptables

I needed to block specific abusive DNS queries this weekend. I documented the research I did in case it helps someone else.Basically I used IPTables to drop packets with a specific string in the...

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Redirecting requests for test server to production via BIND

So this was years ago and I can't remember how exactly I did it, but I'm hoping you guys can help me figure it out. I was working at a datacenter. The developers working for one of our clients had...

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Need to restrict potential access to teamviewer from outside world

My office firewall is running an old version of OpenBSD and pfIs it conveniently possible to restrict teamviewer incoming connections to a certain PC? If I know the public IP of the user that will be...

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Looking for a good / functional patch management tool

Ahoy there.Is there a centralized patch management tool or combination of tools with web interface out there which can do the following for server environments?Compare installed packages against...

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[Hiring] Senior Linux System Administrator @ SingleHop - Chicago, IL

SingleHop is a leading global provider of hosted IT infrastructure and cloud computing. We are pioneering the global cloud IaaS movement by enabling SMBs and service providers in the design,...

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Intermittent email failure? Help?

I inherited administrative duties over an email server - postfix, dovecot, spamassassin, clamav, all running on Ubuntu Server. Everything "works" as far as I and other users can tell (except for one...

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Shell script security best practices?

I know you should avoid storing plain text passwords in scripts, but how? Do you code handling the password, or is it something I should do manually? Do you have any other suggestions for script...

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Encrypted Share? How would you implement?

I've run into a situation where there is data (at rest) that needs to be encrypted.Currently this data is stored on a hard drive that is in turn stored in a private cloud of ours.I have this data being...

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Cronjob debugging

Guys/Gals,Here's a cronjob that I wrote:5 23 * * * root [ "/bin/ps -ef | grep stor_agent | grep -v grep" != " " ] && "/sbin/service stor_agent stop;/sbin/chkconfig stor_agent off"What I am...

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backup windows desktop to linux nas, incremental and crypto-locker safe?

Hi,I'm setting up a new (linux) NAS and am currently thinking about a backup strategy for my Windows box.I could activate the windows file history and that should (?) back up my files incrementally,...

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LXC bridged networking issues

x-post from /r/linuxquestions (http://redd.it/2mt10v)I'm having trouble accessing my containers from the outside world, or pinging the outside world from inside them. They can ping themselves, each...

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post'em -- cat ~/.ssh/known_hosts | wc -l

Your main workstation(hopefully local machine). XXXXXXXXX:~# cat ~/.ssh/known_hosts | wc -l 292 submitted by xtrusion [link][26 comments]

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Samba, Yosemite, and File Permissions

I can not seem to find this answer anywhere. I have setup a Samba server on CentOS 7. It's a small server, just using tdbsam and setup as a standalone server.Users on Windows can set permissions on...

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How do you lean how to program "well"?

How do I learn how to program better? I program like I had a couple years of government school Java class, went to a couple of Perl conferences and used Linux for a four years. I actually program...

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How can I make my CV look better?

A little background: 23-year old guy, I have been a daily user of Linux the last 1.5 year or so. I have worked in helpdesk (Windows) for a little over two years, part-time while I studied. However, my...

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How to use the "private_interfaces" option in openresolv?

I cross-posted this from /r/linux (for lack of attention there)I want to set up dnsmasq to forward queries just for VPN-related traffic. It seems like the best thing to do is enable this inside...

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Whats the difference between cd / and cd /root ?

(Perhaps this is a stupid question and I know unix fairly well, but I had to ask.) Assuming the user is not chrooted. What is the difference between: cd / and cd /root. On Ubuntu I can cd / , but I...

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Samba server containing sshfs mounted directory

Hello,I am attempting to add an sshfs mounted directory to a samba share, however this causes the attempted mount directory to disappear on the clients.Methods testedmkdir /mnt/samba/nc; sshfs nc:/mnt...

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