It's been a long time since I've taken a run at getting Olive up and working. I wanted to take another stab at it and document how to get a working Olive installation using the latest JUNOS code. I also wanted to document how to get Olive up inside VMware ESXi since I hadn't actually done that before.
I recently built a VMware ESXi host at home. When I was researching the hardware, I learned there are a number of things to consider when choosing a RAID card for use under ESXi. This article covers those things and offers advice for anyone who is building a similar system.
As many of you know, Juniper is currently undergoing a massive effort to update their certification program. The previous track in 'Enterprise Routing' is now changing to 'Enterprise Routing and Switching' incorporating elements from the previous certification track in addition to some new elements essential to Enterprise switching such as Spanning-Tree, VLANs, Layer 2 Security, as well as High Availability features like Virtual Chassis. We can expect that a lot of the topics like Firewalling and NAT will be removed from this exam as these topics will more properly appear in the Security track.
Although the new JNCIE-ENT certification is planned to be released in August 2011, there are many of you who are currently pursuing the existing JNCIE-ER before time runs out. The good news is that Juniper plans to continue offering the existing JNCIE-ER exam until October 2011 so there is still quite a bit of time for those who are interested in attaining this certification.
There probably isn't a single day that goes by that I don't receive an email inquiry from someone currently pursuing the JNCIE-ER with a request to learn from my experiences and test preparation techniques. And although this exam Continue reading
apt-get install apache2-mpm-prefork apache2-utils apache2.2-binStep 2: obtain PGP key, configure apt Continue reading
apache2.2-common bsd-mailx libapache2-mod-php5 libapr1
libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap
libgd2-noxpm libjpeg62 libperl5.10 nagios-plugins-basic
php5-common postfix ssl-cert nagios-plugins-standard
nagios-plugins-extra git-core make
As part of the recent hardware upgrade to my ZFS file server I replaced the motherboard. I'd never replaced the motherboard on an active Solaris system before and was curious whether it would be at the easy end of the spectrum (like OpenBSD is) or at the impossible end (like any recent version of Windows). This is what I learned.
I recently had an issue with an OpenBSD firewall where the number of state table entries was hitting the default limit of 10,000. When this limit is reached, no new state entries can be created. If you're using “keep state”, “modulate state” or “synproxy state” on your rules or if you're running OpenBSD 4.1 or newer (where “keep state” is the default on all rules) this could mean that:
So…. if you hit the state table limit it's kinda bad, mmmkay?