Some words for evms/lvm2
Hello Do someone who have experience with evms/lvm2 can say some words. Impressions and etc. I think to setup one of them on machine under extremely high load but I think also this is not a good idea to use them on high load servers. -- SELLINET Internet Services Provider - http://www.sellinet.net/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: nat ipchains on debian woody
Francisco Castillo wrote: Then i do a apt-get install kernel-image-2.18.14-686, and this installations works fine. Then it puts me a entry on the lilo in order to load the new kernel (the old kernel is a 2.2 original woody, it has a 686 ) but the problem for me now is that when i reboot the kernel can´t load. It give me a kernel panic message , unable to load the boot.1006. It seems like this new kernel dont works on my hard plataform, but it happens the same with the kernel-image.2.18-14-586tsc. This could be true? I've heard of this happening (typically with Compaq servers, for some reason), but I've yet to have it happen to me. If you really want to run a 2.4 kernel, or you really want iptables, you'll probably have to compile a custom kernel. :/ IIRC you *can* use iptables with a 2.2 kernel, but it's a pain to get up and running. How can i Knew what is the soft or version of kernel-image i must use in my hard system? Anyone else? I've found stock kernels work fine for me, but I've occasionally run into hardware that doesn't run with them. Could be posible to has a kernel 2.2 of woody and a nat configuration (ipmasquerade) ? Could i do it with ipchanis? It can be done; it also has some very specific flaws and limitations that make it less flexible than iptables. What could be this procedure to setup this configuration? Here's a very trimmed-down version of a firewall script I used to use; for a variety of reasons I no longer use this particular script or anything like it on most of my systems. (Among other reasons, all my systems are running 2.4 kernels, and so I'm using iptables instead of ipchains.) You'll need to modify interface names and IPs to your setup, and decide whether to use the kernel TCP tuning listed here (I've never seen problems with it, but...) =BEGIN rc.firewall= #!/bin/sh case $1 in start|stop|restart) # Setting up firewall variables #External Interface EXT_IF=eth0 EXT_IP=10.10.10.24 #Internal Interface INT_IF=eth1 INT_IP=192.168.2.1 #Network stuff INT_NET=192.168.0.0/16 BROADCAST_SRC=0.0.0.0 BROADCAST_DEST=255.255.255.255 CWD=`pwd` echo -n Doing assorted network shiznit... #Disable TCP source routing for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do echo 0 $f; done #Turn on source address verification for f in /proc/sys/net/ipv4/conf/*/rp_filter; do echo 1 $f; done #Disable ICMP redirection for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do echo 0 $f; done #Turn on packet forwarding (for masquerading) echo 1 /proc/sys/net/ipv4/ip_forward #Turn OFF ICMP replies #echo 1 /proc/sys/net/ipv4/icmp_echo_ignore_all #Use TCP SYN cookies echo 1 /proc/sys/net/ipv4/tcp_syncookies #Assorted TCP/IP crap (turning off unused extensions, etc.) echo 30 /proc/sys/net/ipv4/tcp_fin_timeout echo 1800 /proc/sys/net/ipv4/tcp_keepalive_time echo 0 /proc/sys/net/ipv4/tcp_window_scaling echo 0 /proc/sys/net/ipv4/tcp_sack echo 0 /proc/sys/net/ipv4/tcp_timestamps echo done. #Adding masquerading modules to make life easier. echo -n Adding masquerading modules... /sbin/modprobe ip_masq_ftp.o /sbin/modprobe ip_masq_irc.o /sbin/modprobe ip_masq_quake.o /sbin/modprobe ip_masq_raudio.o /sbin/modprobe ip_masq_vdolive.o /sbin/modprobe ip_masq_portfw.o /sbin/modprobe ip_masq_autofw.o /sbin/modprobe ip_masq_user.o echo done. # Check to see how this script was called. case $1 in stop) echo Stopping FIREWALL services. echo -nFlushing chains... /sbin/ipchains -F echo done. echo FIREWALL services stopped. ;; start) echo Starting FIREWALL services. echo -nSetting forwarding rules... /sbin/ipchains -A forward -j MASQ -s $INT_NET echo done. echoSetting input filter rules... echo -n regular input rules... /sbin/ipchains -A input -j ACCEPT -s any/0 domain -p tcp -i $EXT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 domain -p udp -i $EXT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 time -p tcp -i $INT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 time -p udp -i $INT_IF /sbin/ipchains -A input -j REJECT -d $EXT_IP tftp -p udp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d $EXT_IP sunrpc -p tcp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d $EXT_IP auth -p tcp -i $EXT_IF -l # Since we don't use nntp anyway... /sbin/ipchains -A input -j REJECT -d $EXT_IP nntp -p tcp -i $EXT_IF -l # Samba and friends; we don't want to have anything to do with # these over the public interface /sbin/ipchains -A input -j REJECT -d $EXT_IP 134 -p tcp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d $EXT_IP 135
Streaming Video Server
I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod -- The only way to learn a new programming language is by writing programs in it. - Brian Kernighan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Streaming Video Server
Try http://www.videolan.org/ Great streaming software, client and server, lots of features. Not very CPU intensive from what I've found, 3-4 streams. Come's in a Debian package too. Rod Rodolico wrote: I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Streaming Video Server
depends entirely on what the client means by video streaming. there are many vague and widely varying ideas of this. most types of 'live' streaming require a specific server software (like Real Player streams and windows media streams). And for anything more than casual usage, they require a boatload of bw...most places charge based on peak concurrent users and quality/bandwidth multiplier metrics... exactly the ratios depends on what it costs you for bandwidth. --On Thursday, July 08, 2004 21:00 -0500 Rod Rodolico [EMAIL PROTECTED] wrote: I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod -- The only way to learn a new programming language is by writing programs in it. - Brian Kernighan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Some words for evms/lvm2
Hello Do someone who have experience with evms/lvm2 can say some words. Impressions and etc. I think to setup one of them on machine under extremely high load but I think also this is not a good idea to use them on high load servers. -- SELLINET Internet Services Provider - http://www.sellinet.net/
Re: nat ipchains on debian woody
Francisco Castillo wrote: Then i do a apt-get install kernel-image-2.18.14-686, and this installations works fine. Then it puts me a entry on the lilo in order to load the new kernel (the old kernel is a 2.2 original woody, it has a 686 ) but the problem for me now is that when i reboot the kernel can´t load. It give me a kernel panic message , unable to load the boot.1006. It seems like this new kernel dont works on my hard plataform, but it happens the same with the kernel-image.2.18-14-586tsc. This could be true? I've heard of this happening (typically with Compaq servers, for some reason), but I've yet to have it happen to me. If you really want to run a 2.4 kernel, or you really want iptables, you'll probably have to compile a custom kernel. :/ IIRC you *can* use iptables with a 2.2 kernel, but it's a pain to get up and running. How can i Knew what is the soft or version of kernel-image i must use in my hard system? Anyone else? I've found stock kernels work fine for me, but I've occasionally run into hardware that doesn't run with them. Could be posible to has a kernel 2.2 of woody and a nat configuration (ipmasquerade) ? Could i do it with ipchanis? It can be done; it also has some very specific flaws and limitations that make it less flexible than iptables. What could be this procedure to setup this configuration? Here's a very trimmed-down version of a firewall script I used to use; for a variety of reasons I no longer use this particular script or anything like it on most of my systems. (Among other reasons, all my systems are running 2.4 kernels, and so I'm using iptables instead of ipchains.) You'll need to modify interface names and IPs to your setup, and decide whether to use the kernel TCP tuning listed here (I've never seen problems with it, but...) =BEGIN rc.firewall= #!/bin/sh case $1 in start|stop|restart) # Setting up firewall variables #External Interface EXT_IF=eth0 EXT_IP=10.10.10.24 #Internal Interface INT_IF=eth1 INT_IP=192.168.2.1 #Network stuff INT_NET=192.168.0.0/16 BROADCAST_SRC=0.0.0.0 BROADCAST_DEST=255.255.255.255 CWD=`pwd` echo -n Doing assorted network shiznit... #Disable TCP source routing for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do echo 0 $f; done #Turn on source address verification for f in /proc/sys/net/ipv4/conf/*/rp_filter; do echo 1 $f; done #Disable ICMP redirection for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do echo 0 $f; done #Turn on packet forwarding (for masquerading) echo 1 /proc/sys/net/ipv4/ip_forward #Turn OFF ICMP replies #echo 1 /proc/sys/net/ipv4/icmp_echo_ignore_all #Use TCP SYN cookies echo 1 /proc/sys/net/ipv4/tcp_syncookies #Assorted TCP/IP crap (turning off unused extensions, etc.) echo 30 /proc/sys/net/ipv4/tcp_fin_timeout echo 1800 /proc/sys/net/ipv4/tcp_keepalive_time echo 0 /proc/sys/net/ipv4/tcp_window_scaling echo 0 /proc/sys/net/ipv4/tcp_sack echo 0 /proc/sys/net/ipv4/tcp_timestamps echo done. #Adding masquerading modules to make life easier. echo -n Adding masquerading modules... /sbin/modprobe ip_masq_ftp.o /sbin/modprobe ip_masq_irc.o /sbin/modprobe ip_masq_quake.o /sbin/modprobe ip_masq_raudio.o /sbin/modprobe ip_masq_vdolive.o /sbin/modprobe ip_masq_portfw.o /sbin/modprobe ip_masq_autofw.o /sbin/modprobe ip_masq_user.o echo done. # Check to see how this script was called. case $1 in stop) echo Stopping FIREWALL services. echo -nFlushing chains... /sbin/ipchains -F echo done. echo FIREWALL services stopped. ;; start) echo Starting FIREWALL services. echo -nSetting forwarding rules... /sbin/ipchains -A forward -j MASQ -s $INT_NET echo done. echoSetting input filter rules... echo -n regular input rules... /sbin/ipchains -A input -j ACCEPT -s any/0 domain -p tcp -i $EXT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 domain -p udp -i $EXT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 time -p tcp -i $INT_IF /sbin/ipchains -A input -j ACCEPT -s any/0 time -p udp -i $INT_IF /sbin/ipchains -A input -j REJECT -d $EXT_IP tftp -p udp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d $EXT_IP sunrpc -p tcp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d $EXT_IP auth -p tcp -i $EXT_IF -l # Since we don't use nntp anyway... /sbin/ipchains -A input -j REJECT -d $EXT_IP nntp -p tcp -i $EXT_IF -l # Samba and friends; we don't want to have anything to do with # these over the public interface /sbin/ipchains -A input -j REJECT -d $EXT_IP 134 -p tcp -i $EXT_IF -l /sbin/ipchains -A input -j REJECT -d
Streaming Video Server
I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod -- The only way to learn a new programming language is by writing programs in it. - Brian Kernighan
Re: Streaming Video Server
Try http://www.videolan.org/ Great streaming software, client and server, lots of features. Not very CPU intensive from what I've found, 3-4 streams. Come's in a Debian package too. Rod Rodolico wrote: I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod
Re: Streaming Video Server
depends entirely on what the client means by video streaming. there are many vague and widely varying ideas of this. most types of 'live' streaming require a specific server software (like Real Player streams and windows media streams). And for anything more than casual usage, they require a boatload of bw...most places charge based on peak concurrent users and quality/bandwidth multiplier metrics... exactly the ratios depends on what it costs you for bandwidth. --On Thursday, July 08, 2004 21:00 -0500 Rod Rodolico [EMAIL PROTECTED] wrote: I just talked myself into a corner. A client called and asked if we can do a streaming video server and I said Yes, of course. He then asked if I'd have a bid ready by the end of the week. So: 1. How do I do it. I am running a web server that is very under utilized (only about 60 web sites and a couple of hundred e-mail accounts). Do I just set up the site and the files the client puts out there are MPG or something? Or, do I need another server. 2. Any special hints on how to bill for this? I charge $25/mo to host web sites so long as the traffic is below a gig a month. I told the client I'd have to look into billing, but are there any caveats I should look for. 3. Any other information would be very appreciated. I'll be researching this myself, but hope some pointers will come from the mailing list also. Thanks, Rod -- The only way to learn a new programming language is by writing programs in it. - Brian Kernighan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting
