CentOS upstart problems
In CentOS 5.x, we use /etc/inittab to run some processes, mainly so that they will respawn if they die. This does not work in CentOS 6, so we are working to create upstart jobs for everything. I'm...
View Articledig does not always use @server. bug, feature or misuse?
dig @8.8.8.8 domain.com +nssearch answers the first query using 8.8.8.8, but all the next queries to get the ip of the ns are done using /etc/resolv.confYou can see this capturing the trafficBug?...
View ArticleWould you switch from enterprise to a research university cluater environment?
If so, What are the pros and cons to consider. If you already work in a cluster environment please tell us enterprise folks what makes you guys cool.I would say no red tape is a good big plus in my...
View ArticleBASH script to clean up AWS snapshots/AMIs, hitting some issues...
so bash scripting has never been my strong suit, and although i can usually fumble through basic stuff, i've hit an issue that i may be making more complex than I need to.on AWS, you can make images of...
View ArticlePostgreSQL and keepalived active/standby synchronization (xpost from r/linux)
Hello everyone. I’m trying to come up with a database and IP failover solution. I was thinking about using keepalived for IP address failover (VRRP ultimately) and the following cookbook for the...
View ArticleWhat is an acceptable response time for an external memcache server?
I don't want to slander the service i'm using, however I noticed during peek hours the GET call can get really slow. I've seen specific calls take up to 0.40 seconds. http://i.imgur.com/nhPYXUo.pngFor...
View ArticleOpenLDAP deploy tips
Does anyone have any resources or tips on deploying OpenLdap on Cent 6? We're trying to setup user auth for an admin team and some lesser privileged accounts for dev teams. Hoping someone has first...
View ArticleMy Ubuntu internet is not working
Hey guys, I updated to 12.04 or 13.04 I can't remember (but I can get that info if you want). And the update worked fine, but then a couple day later I come back to my machine and neither the ethernet...
View ArticleSetup complete school environment
I am having trouble setting up a school with management of computers and phones...Right now we are having about 40 windows 8 and 7 computers with only an admin account with password, an ESXi server...
View ArticleWindows 7 Home Premium on Zentyal
Anybody know how i can connect Home premium version of Windows 7 to Zentyal domain? (Is it even possible?) submitted by theisslv [link][2 comments]
View Articlewhen nohup is not available
I ran in to a situation where I was working on a router that for some weird reason did not have the nohup command.I remember seeing somewhere a really cool solution (sorry I can't remember where I saw...
View ArticleUse DHCP to point to LDAP server?
Is it possible to configure Linux clients to pick up the LDAP server and cn/dc/etc. from DHCP or does it absolutely have to be in /etc/libnss-ldap.conf on the client? submitted by bodangren2 [link][11...
View ArticleSSL Certificate not trusted on mobile browsers
Good morning all. I'm deeply aggravated at the moment by the fact that my (to my eye) correctly formatted SSL certificate is not trusted on mobile browsers even though it is on all desktop browsers....
View ArticleSendmail not sending outside local domain
I have Sendmail V8.13.8 running on a Red Hat Enterprise Linux Server R5.7. The main system on this server is our ILS (Integrated Library System). Then, the system sends circulation notices through...
View Article2nd Linux Admin Interview - Help Please
I've worked a Network Support Tech in the past with very little professional Linux experience, however I've been working in a job where I have been using CentOS on a daily basis providing support for...
View Articletunnel with socat over compressed connection
Basically what I'm trying to achieve is to create a vpn over a compressed connection with socat, but I can't seem to make it right The idea is to have:tun_device <=> gzip/gunzip <=>...
View ArticleWhat Determines Syntax Highlighting?
I am wondering what determines the syntax highlighting in CentOS 6 / Linux in general when I edit a file like /etc/fstab? I notice that 'ext4' does NOT highlight in color like 'swap' or 'ext2' does....
View ArticleCentralized patch management software?
Greetings all - I'm looking for a patch management tool for my Linux boxes much along the line of WSUS for Windows. Ideally, I'd have the ability to release certain updates to certain groups of...
View ArticleDNS Question
I was tailing /var/log/messages on a server that runs named (acts as its own nameserver for the domains hosted there)And noticed a large number of DNS queries for a domain. This domain's NS records...
View ArticleUser/key management in DMZ.
We have active directory on our internal network, but for obvious reasons I don't allow that from our DMZ which is mostly linux servers. Today i'm only using local users on all servers, but it's...
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