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OpenVOS Blog
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Why can't I supply a password to the sftp command from inside a macro?
By Paul GreenAre you frustrated by the fact that you can't supply a canned password to the secure ftp (sftp) command? Read on for an explanation of why this capability was removed, and learn about a better, more secure method for user authentication.
Read More | 5 comments | Last comment at 2/18/2010 7:18pmPings can be Dangerous
By Noah DavidsThe default behavior of STCP's ping command is not suitable for long term monitoring of a target host but with a little adjustment of the arguments and a simple command macro you can have a very usable and network friendly monitor.
What's next for OpenVOS?
By Paul GreenI enjoy meeting our VOS and OpenVOS customers. Customers ask me where we are headed with VOS/OpenVOS, and colleagues ask me where we should go with VOS/OpenVOS. I've often said that I get my best ideas from our customers. If you have ideas on how we can make OpenVOS better for you, please read on.
Read More | 2 comments | Last comment at 8/26/2009 8:33pmIs your pre-production network testing effective?
By Noah DavidsI would like to expand on Paul's recent blog "Is your pre-production testing effective?". Paul covered CPU utilization and code paths but there is another very important aspect of many applications - network utilization. Many applications are tested in a LAN environment with latencies in the sub-millisecond range and bandwidth at least at 100 mbps. They are then deployed to be used across a WAN with smaller bandwidths and much higher latencies. The results can be a disaster.
Is your pre-production testing effective?
By Paul GreenIf I could make just one request of VOS customers, it would be ensure that your pre-production testing is effective. Read on to learn more.
Mixing VOS and POSIX commands in bash
By Paul GreenMany VOS commands will work inside the bash shell. Read on to learn more.
Read More | 1 comments | Last comment at 8/7/2009 6:31pmCan you improve fault tolerance with multiple IP interfaces on the same subnet?
By Noah DavidsHaving two interfaces in a module on the same subnet does not give you two interfaces into and out of the module. While you do get two interfaces into the module, STCP will use just one interface when sending packets out of the module. It does this regardless of which interface a client has connected to. I'll demonstrate this and show you how to tell which interface is actually being used to send the packets.An easy way to improve TCP throughput across subnets
By Noah DavidsAn easy way to increase TCP throughput when sending large amounts of data between subnets is to adjust the STCP min_mss value. I will explain how to do it, give you an idea of the increase in throughput you can expect and explain the dangers in doing this.
Read More | 3 comments | Last comment at 7/28/2009 11:26amVOS Release Information Now On-The-Web
By Dan DanzOperating System Release Information for VOS and OpenVOS Systems is now available to our customers, directly on the Stratus web site. A link is shown in the left navigation bar of many pages, especially in the Support & Documentation area
Things to consider on a Multihomed OpenVOS Module
By Noah DavidsIn some cases protocols like FTP and NDMP may not work as expected on multihomed systems. This article explains why and how to test for problems.