Most recently, it has been the package management. I have been all but forced to use the "commercial" RedHat up at work, and I still cannot believe that Redhat uses a lame package manager that requires you to "solve your own" dependencies. What the shit is that? Like you say further down, there's yum and it's far from a "bastard", it actually works great (way better than APT, IMHO) and it's been included "from factory" in Fedora and in many alternative Redhat "respins" like CentOS for many years now. And you don't even have to pay Redhat for a license if you don't want to: CentOS and Fedora are free, not only as-in-freedom but also as-in-beer.
Also, have you ever tried developing or modifying an existing.DEB? It sucks *big* time. RPM is much more developer-friendly.
Debian is at least 1 full generation ahead of RedHat. What about 64-bit (AMD64) support? it was available for all other linux distros for many years (including Redhat/CentOS/Fedora) before it finally showed
up in the latest Debian. In that case at least, it was Debian who was not one, but many generations late...
Actually, my impression when I watch the Debian development process is that these guys spend more time bickering than coding... so it's no wonder Ubuntu ended up stealing the the show.
I use everyday both Debian-based (Ubuntu) and RedhatEL based (CentOS) systems every day, so I'm not basing my opinions in completely prejudiced factoids like "Redhat Enterprise is still redhat 9 with updates".
Go on, download and install one of the latest Fedora or CentOS and give it a spin. I bet you will be surprised...
First of all, thanks for the awesomely informative comment. Just a point I'm curious about:
But depending on your specific needs you might want to just stick with the C3's (which, incidentally, cannot keep gig-e filled, so if you wanted full gig-e bandwidth on each host, you'll want something beefier than the C3).
Over what protocol did you measure that (HTTP, Samba, NFS, etc)? Can you be more precise at just how much under gigE (1Gbps, I presume) you managed to fill up with a C3? I'm interested because currently I have a K6-III-500Mhz (OK, long story) that can't fill even half of a fastE (yes, under 59Mbps) over Samba... based on whetstone/etc published benchmarks for the C3 I was expecting an 800Mhz part to barely fill a fastE, and I'm curious about the rates you are getting.
Regarding my quest for an AMD64+trackpoint notebook: checking their website , their current AMD64 offerings are limited to the Lifebook S2110 and A3040, and neither has a trackpoint...
Just a quick update:
I've emailed Fujitsu sales and they have just replied, confirming what I found on their website: they have no notebooks with both an AMD64 CPU and a trackpoint.
Thanks to those who replied pointing that Fujitsu-Siemens also produces AMD64+trackpoint notebooks (I really didn't know about that).
Fujitsu-Siemens seems Linux-supportive enough on their website : "Linux is a core part of our technology solutions aimed to solve specific business problems. Fujitsu Siemens Computers is a full-line infrastructure provider with close cooperation to leading Linux distributors, ISVs and service partners. Fujitsu Siemens Computers offer best-in-class support for Linux, Windows, Solaris with the same level of support and commitment for all operating systems. [...]"
The rest of the page focuses Linux use on servers; it isn't clear whether they support (or even acknowledge) Linux on their notebooks, but at least it's an auspicious start; On the less-auspicious site there's the ubiquitous "Fujitsu Siemens Computers recommends Windows® XP Professional" banner on top of almost EVERY PAGE on their website, but then they probably are forced to do that by some part of their Windows OEM contract with Microsoft.
Regarding my quest for an AMD64+trackpoint notebook: checking their website , their current AMD64 offerings are limited to the Lifebook S2110 and A3040, and neither has a trackpoint... They seem to follow the same strategy as HP, that is, keeping the AMD64 offerings on the "low end" (relatively so: Fujitsu notebooks are more expensive than most other vendors') and the trackpoint offerings on their "high end" (which seems to be Intel only).
... I was waiting for you to start shipping 64-bit notebooks so I could buy a new Thinkpad, now I don't need to wait for you anymore. Incidentally, I'm a consultant and influence buying decisions in quite a few companies, so you can rest assured you have lost quite a few sales here, both in the desktop and notebook categories.
BTW, I'm shopping for a notebook with 1) decent Linux support, 2) a trackpoint/pointstick, and 3) a 64-bit amd64-compatible processor, in that order. So far the only three manufacturers I've found with trackpoint/pointstick offerings are Dell, HP and Toshiba; HP is the only one with 64-bit notebooks but so far they have not produced a notebook with both a 64-bit processor and a trackpoint/pointstick; Dell and Toshiba seem not to have any 64-bit offerings at all.
To sum it up, he speaks good things about both Free S/WAN (representing the IPSEC-is-good camp) and OpenVPN (representing the IPSEC-is-too-complex guys). Too bad neither one run on kernel 2.0 (still my preferred for security applications).
Like the original article, very well written and informative. A must read.
Just out of curiosity, I captured ICMP echo request traffic to my ADSL firewall for the last HOUR: got exactly 120 packets, less than 5 KB total... totally irrelevant.
Maybe the folks who are getting lots and lots of it are being targets of a good'old DDoSes instead of simply being scanned by worms?
I would investigate that more throughly if I was in their place, instead of just assuming it's worm traffic.
Anyone have experience with using Apache 1.3.x or 2.x as a reverse proxy?
One of our customers ( http://www.amcham.com.br/) uses it extensivelly, as a "front-end" to dynamic web sites running on both a Zope server running on the same machine, and a MS IIS server running on a separate machine. Also, this same Apache also serves up static content residing on files in the same machine.
We also do caching for the "static part" (.gif,.css,.jpg,etc) of the dynamic content, as we have found that this reduces a lot the load on the dynamic servers.
This machine is a
(somewhat outdated) Intel PII-Xeon 550Mhz, and serves upwards of 3 million hits per month running Apache 1.3.26 (of course patched-up to fix the latest security holes).
I can attest that this setup works really well: we have never, in 2 years of operations, had ANY downtime because of Apache, and mod_rewrite and mod_proxy indeed do wonders for flexibility and efficiency.
Really, really good author... although not *hard* science fiction.
Comes to mind the Riverworld series (esp. the first
2 volumes), the Dayworld series (all three are great) and the Creator of Universes series.
Have a look at his Official home page
... and published on Doctor Dobb's Journal (yes, the source code is available). See http://www.ddj.com/articles/2000/0005/0005i/0005i. htm
The guy who wrote it works for Microsoft (so of course his implementation is Windows-dependant) but he makes some pretty good points on using multicast for file distribution, and naturally the idea and/or algorithms could be reimplemented in some D-O-S (Decent Operating System) like Linux...
Best Regards,
--
Durval Menezes.
Slashdot Mirror
Maybe it's the same guys who already gifted the world with the WEP fiasco
Make no mistakes, people. There are complete idiots in the IEEE as well as outstanding geniouses, just like in any other organization.
Also, have you ever tried developing or modifying an existing .DEB? It sucks *big* time. RPM is much more developer-friendly.
Debian is at least 1 full generation ahead of RedHat. What about 64-bit (AMD64) support? it was available for all other linux distros for many years (including Redhat/CentOS/Fedora) before it finally showed up in the latest Debian. In that case at least, it was Debian who was not one, but many generations late...Actually, my impression when I watch the Debian development process is that these guys spend more time bickering than coding... so it's no wonder Ubuntu ended up stealing the the show.
I use everyday both Debian-based (Ubuntu) and RedhatEL based (CentOS) systems every day, so I'm not basing my opinions in completely prejudiced factoids like "Redhat Enterprise is still redhat 9 with updates".
Go on, download and install one of the latest Fedora or CentOS and give it a spin. I bet you will be surprised...
IMHO, YMMV, etc...
Do you mean the Geode GX or the NX? If the former, are you aware of Sudhian's comparison
of it with a VIA C3 (http://www.sudhian.com/index.php?/articles/show/
If not, you will certainly find it interesting.
Over what protocol did you measure that (HTTP, Samba, NFS, etc)? Can you be more precise at just how much under gigE (1Gbps, I presume) you managed to fill up with a C3?
I'm interested because currently I have a K6-III-500Mhz (OK, long story) that can't fill even half of a fastE (yes, under 59Mbps) over Samba... based on whetstone/etc published benchmarks for the C3 I was expecting an 800Mhz part to barely fill a fastE, and I'm curious about the rates you are getting.
Just a quick update:
I've emailed Fujitsu sales and they have just replied, confirming what I found on their website: they have no notebooks with both an AMD64 CPU and a trackpoint.
Thanks to those who replied pointing that Fujitsu-Siemens also produces AMD64+trackpoint notebooks (I really didn't know about that).
Fujitsu-Siemens seems Linux-supportive enough on their website :
"Linux is a core part of our technology solutions aimed to solve specific business problems. Fujitsu Siemens Computers is a full-line infrastructure provider with close cooperation to leading Linux distributors, ISVs and service partners. Fujitsu Siemens Computers offer best-in-class support for Linux, Windows, Solaris with the same level of support and commitment for all operating systems. [...]"
The rest of the page focuses Linux use on servers; it isn't clear whether they support (or even acknowledge) Linux on their notebooks, but at least it's an auspicious start; On the less-auspicious site there's the ubiquitous "Fujitsu Siemens Computers recommends Windows® XP Professional" banner on top of almost EVERY PAGE on their website, but then they probably are forced to do that by some part of their Windows OEM contract with Microsoft.
Regarding my quest for an AMD64+trackpoint notebook: checking their website , their current AMD64 offerings are limited to the Lifebook S2110 and A3040, and neither has a trackpoint... They seem to follow the same strategy as HP, that is, keeping the AMD64 offerings on the "low end" (relatively so: Fujitsu notebooks are more expensive than most other vendors') and the trackpoint offerings on their "high end" (which seems to be Intel only).
<sigh> at least it's another vendor to monitor.
... I was waiting for you to start shipping 64-bit notebooks so I could buy a new Thinkpad, now I don't need to wait for you anymore. Incidentally, I'm a consultant and influence buying decisions in quite a few companies, so you can rest assured you have lost quite a few sales here, both in the desktop and notebook categories.
BTW, I'm shopping for a notebook with 1) decent Linux support, 2) a trackpoint/pointstick, and 3) a 64-bit amd64-compatible processor, in that order. So far the only three manufacturers I've found with trackpoint/pointstick offerings are Dell, HP and Toshiba; HP is the only one with 64-bit notebooks but so far they have not produced a notebook with both a 64-bit processor and a trackpoint/pointstick; Dell and Toshiba seem not to have any 64-bit offerings at all.
Can anyone recommend an alternative?
... to the original article. It's available here .
To sum it up, he speaks good things about both Free S/WAN (representing the IPSEC-is-good camp) and OpenVPN (representing the IPSEC-is-too-complex guys). Too bad neither one run on kernel 2.0 (still my preferred for security applications).
Like the original article, very well written and informative. A must read.
Hello,
Just out of curiosity, I captured ICMP echo request traffic to my ADSL firewall for the last HOUR: got exactly 120 packets, less than 5 KB total... totally irrelevant.
Maybe the folks who are getting lots and lots of it are being targets of a good'old DDoSes instead of simply being scanned by worms?
I would investigate that more throughly if I was in their place, instead of just assuming it's worm traffic.
One of our customers ( http://www.amcham.com.br/) uses it extensivelly, as a "front-end" to dynamic web sites running on both a Zope server running on the same machine, and a MS IIS server running on a separate machine. Also, this same Apache also serves up static content residing on files in the same machine.
We also do caching for the "static part" (.gif,.css,.jpg,etc) of the dynamic content, as we have found that this reduces a lot the load on the dynamic servers.
This machine is a (somewhat outdated) Intel PII-Xeon 550Mhz, and serves upwards of 3 million hits per month running Apache 1.3.26 (of course patched-up to fix the latest security holes).
I can attest that this setup works really well: we have never, in 2 years of operations, had ANY downtime because of Apache, and mod_rewrite and mod_proxy indeed do wonders for flexibility and efficiency.
Really, really good author... although not *hard* science fiction. Comes to mind the Riverworld series (esp. the first 2 volumes), the Dayworld series (all three are great) and the Creator of Universes series. Have a look at his Official home page
... and published on Doctor Dobb's Journal (yes, the source code is available). See http://www.ddj.com/articles/2000/0005/0005i/0005i. htm
The guy who wrote it works for Microsoft (so of course his implementation is Windows-dependant) but he makes some pretty good points on using multicast for file distribution, and naturally the idea and/or algorithms could be reimplemented in some D-O-S (Decent Operating System) like Linux...
Best Regards,
--
Durval Menezes.