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  • Website memory problem

    - by Toktik
    I have CentOS 5 installed on my server. I'm in VPS server. I have site where I have constant online ~150. First look on site looks OK. But when I go through links, sometimes I receive Out of memory PHP error. It looks like this Fatal error: Out of memory (allocated 36962304) (tried to allocate 7680 bytes) in /home/host/public_html/sites/all/modules/cck/modules/fieldgroup/fieldgroup.install on line 100 And always, not allocated memory is very small. In average I have 30% CPU load, 25% RAM load. So I think here is not a physical memory problem. My PHP memory limit was set to 1500MB. My apache error log looks like this [Thu Sep 30 17:48:59 2010] [error] [client 91.204.190.5] Out of memory, referer: http://www.host.com/17402 [Thu Sep 30 17:48:59 2010] [error] [client 91.204.190.5] Premature end of script headers: index.php, referer: http://www.host.com/17402 [Thu Sep 30 17:48:59 2010] [error] [client 91.204.190.5] Out of memory, referer: http://www.host.com/17402 [Thu Sep 30 17:48:59 2010] [error] [client 91.204.190.5] Premature end of script headers: index.php, referer: http://www.host.com/17402 [Thu Sep 30 17:49:00 2010] [error] [client 91.204.190.5] File does not exist: /home/host/public_html/favicon.ico Past I have not met with this on my server and the problem appeared itself. Besides this I'm receiving some server errors on mail. cpsrvd failed @ Fri Sep 24 16:45:20 2010. A restart was attempted automagically. Service Check Method: [tcp connect] Failure Reason: Unable to connect to port 2086 Same for tailwatchd. Support tried, and can't help me...

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  • How to force Debian to boot new Kernel?

    - by ThE_-_BliZZarD
    I'm running Debian 6, Debian GNU/Linux, with Linux 2.6.32-5-amd64 under Grub2 ( 1.98+20100804-14+squeeze1) on a remote system (no possibility to view the pre-boot messages). I compiled and installed a new kernel, but I can not get it to boot. What I have done: Installed the packages via: dpkg -i linux-headers-3.5.3.20120914-amd64_3.5.3.20120914-amd64-10.00.Custom_amd64.deb linux-image-3.5.3.20120914-amd64_3.5.3.20120914-amd64-10.00.Custom_amd64.deb This updated the Grub configuration. My /boot/grub/grub.cfg now contains: menuentry 'Debian GNU/Linux, with Linux 3.5.3.20120914-amd64' --class debian --class gnu-linux --class gnu --class os { insmod raid insmod mdraid insmod part_msdos insmod part_msdos insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 5a3882a9-c7df-4f6a-9feb-f03e3e37be01 echo 'Loading Linux 3.5.3.20120914-amd64 ...' linux /vmlinuz-3.5.3.20120914-amd64 root=UUID=003242b5-121b-49f3-b32f-1b40aea56eed ro acpi=ht quiet panic=10 echo 'Loading initial ramdisk ...' initrd /initrd.img-3.5.3.20120914-amd64 } menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-amd64' --class debian --class gnu-linux --class gnu --class os { insmod raid insmod mdraid insmod part_msdos insmod part_msdos insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set 5a3882a9-c7df-4f6a-9feb-f03e3e37be01 echo 'Loading Linux 2.6.32-5-amd64 ...' linux /vmlinuz-2.6.32-5-amd64 root=UUID=003242b5-121b-49f3-b32f-1b40aea56eed ro acpi=ht quiet panic=10 echo 'Loading initial ramdisk ...' initrd /initrd.img-2.6.32-5-amd64 } I used grub-set-default "Debian GNU/Linux, with Linux 2.6.32-5-amd64" to set the old kernel as default and then grub-reboot "Debian GNU/Linux, with Linux 3.5.3.20120914-amd64" to boot into the new kernel once. After update-grub I rebooted the system, but everytime it comes back up with the old kernel (2.6). I tried setting the new one as default (grub-set-default 0, update-grub, reboot) but, still the old one. The Syslogs contain NO hint whatsoever about trying to boot the new kernel - only the old one. Would there be any hints regarding problems with a kernel? Is there a way to enable debug-logging in grub? What am I doing wrong? How can I force the system to boot the new kernel? Edit: Hardware of remote machine. CPU cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 5 model name : AMD Athlon(tm) II X4 605e Processor stepping : 3 cpu MHz : 2294.898 cache size : 512 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt bogomips : 4589.77 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate (copied only the first, 3 more follow) The server is a Fujitsu PRIMERGY MX130 S1.

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  • Secure openVPN using IPTABLES

    - by bob franklin smith harriet
    Hey, I setup an openVPN server and it works ok. The next step is to secure it, I opted to use IPTABLES to only allow certain connections through but so far it is not working. I want to enable access to the network behind my openVPN server, and allow other services (web access), when iptables is disabaled or set to allow all this works fine, when using my following rules it does not. also note, I already configured openVPN itself to do what i want and it works fine, its only failing when iptables is started. Any help to tell me why this isnt working will appreciated here. These are the lines that I added in accordance with openVPN's recommendations, unfortunately testing these commands shows that they are requiered, they seem incredibly insecure though, any way to get around using them? # Allow TUN interface connections to OpenVPN server -A INPUT -i tun+ -j ACCEPT #allow TUN interface connections to be forwarded through other interfaces -A FORWARD -i tun+ -j ACCEPT # Allow TAP interface connections to OpenVPN server -A INPUT -i tap+ -j ACCEPT # Allow TAP interface connections to be forwarded through other interfaces -A FORWARD -i tap+ -j ACCEPT These are the new chains and commands i added to restrict access as much as possible unfortunately with these enabled, all that happens is the openVPN connection establishes fine, and then there is no access to the rest of the network behind the openVPN server note I am configuring the main iptables file and I am paranoid so all ports and ip addresses are altered, and -N etc appears before this so ignore that they dont appear. and i added some explanations of what i 'intended' these rules to do, so you dont waste time figuring out where i went wrong : 4 #accepts the vpn over port 1192 -A INPUT -p udp -m udp --dport 1192 -j ACCEPT -A INPUT -j INPUT-FIREWALL -A OUTPUT -j ACCEPT #packets that are to be forwarded from 10.10.1.0 network (all open vpn clients) to the internal network (192.168.5.0) jump to [sic]foward-firewall chain -A FORWARD -s 10.10.1.0/24 -d 192.168.5.0/24 -j FOWARD-FIREWALL #same as above, except for a different internal network -A FORWARD -s 10.10.1.0/24 -d 10.100.5.0/24 -j FOWARD-FIREWALL # reject any not from either of those two ranges -A FORWARD -j REJECT -A INPUT-FIREWALL -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT-FIREWALL -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT-FIREWALL -j REJECT -A FOWARD-FIREWALL -m state --state RELATED,ESTABLISHED -j ACCEPT #80 443 and 53 are accepted -A FOWARD-FIREWALL -m tcp -p tcp --dport 80 -j ACCEPT -A FOWARD-FIREWALL -m tcp -p tcp --dport 443 -j ACCEPT #192.168.5.150 = openVPN sever -A FOWARD-FIREWALL -m tcp -p tcp -d 192.168.5.150 --dport 53 -j ACCEPT -A FOWARD-FIREWALL -m udp -p udp -d 192.168.5.150 --dport 53 -j ACCEPT -A FOWARD-FIREWALL -j REJECT COMMIT now I wait :D

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  • Apache is running the wrong version of PHP.

    - by The Rook
    I am trying to enable CURL in php, and possibly update php as well. I have run into a road block where Apache seems to be running the wrong version of PHP. Here is some evidence. #lsof | grep php httpd 18397 nobody 135w REG 8,3 242 528537 /usr/local/apache/modules/libphp5.so I download the latest php 5.2.13 and build from source. I run a service httpd stop, do a make install and then I manually overwrite /usr/local/apache/modules/libphp5.so just to be safe. Using ldd i can see that its my fresh binary compiled with curl (the old one doesn't have curl.) ldd /usr/local/apache/modules/libphp5.so | grep curl libcurl.so.4 => /usr/local/lib/libcurl.so.4 (0x0064e000) I execute a phpinfo() and 5.2.3 is being executed instated of my new 5.2.13 and "curl" is nowhere to be found. What am I doing wrong? Why is curl disabled even though its statically linked? This is a RHEL 5.5 system.

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  • Automatically mounting windows share in Fedora 12

    - by user15865
    Hi, I'm trying to automatically mount a windows share in a Fedora 12 instance (FC12). When I manually mount things work: mount -t cifs //nas01/servers -o username=guest,password=myPassword /mnt/nas01/servers If I update /etc/fstab with the following: //nas01/servers /mnt/nas01/servers cifs username=guest,password=myPassword 0 0 Nothing happens after reboot. The thing that has me baffled is after a reboot if I run: mount -a The share is mounted. Any ideas on this? Thank you, Martin

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  • ios7 loops on the "trust this computer" dialog

    - by gcb
    trying to transfer files to the work ipad via my debian7 box. When i plug it on the computer usb port, it shows the dialog about trusting this computer, and the computer shows a gnome alert about the ipad being locked and that i should unlock it and try again. i press "trust" on the ipad and try again on gnome. and it starts again. over and over. endlessly. there are dozen threads about this on apple support forums. no solution. just dozens of "me too" flags. e.g. https://discussions.apple.com/message/23082859#23082859 (44 me-too, 2k views) here is the log/messages i get Oct 23 21:17:39 dotmatrix kernel: [ 1928.517766] usb 2-1.7: USB disconnect, device number 16 Oct 23 21:17:39 dotmatrix kernel: [ 1928.715441] usb 2-1.7: new high-speed USB device number 17 using ehci_hcd Oct 23 21:17:40 dotmatrix kernel: [ 1928.811031] usb 2-1.7: New USB device found, idVendor=05ac, idProduct=12ab Oct 23 21:17:40 dotmatrix kernel: [ 1928.811036] usb 2-1.7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Oct 23 21:17:40 dotmatrix kernel: [ 1928.811039] usb 2-1.7: Product: iPad Oct 23 21:17:40 dotmatrix kernel: [ 1928.811041] usb 2-1.7: Manufacturer: Apple Inc. Oct 23 21:17:40 dotmatrix kernel: [ 1928.811043] usb 2-1.7: SerialNumber: fec5e0f6a6fa18a936de3c53af661051d290275e Oct 23 21:17:40 dotmatrix mtp-probe: checking bus 2, device 17: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7" Oct 23 21:17:40 dotmatrix mtp-probe: bus: 2, device: 17 was not an MTP device Oct 23 21:17:43 dotmatrix kernel: [ 1932.346505] usb 2-1.7: USB disconnect, device number 17 If i never press the trust dialog it will stay there until i remove the cable. but the logs shows that it gave up 3sec after the cable was connected.

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  • Ubuntu init.d script not being called on startup

    - by Mike
    I've got a script in ubuntu 9.04 in init.d that I've set to run on start on with update-rc.d using update-rc.d init_test defaults 99. All of the symlinks are there and the permissions appear to be correct -rwxr-xr-x 1 root root 642 2010-10-28 16:44 init_test mike@xxxxxxxxxx:~$ find /etc -name S99* | grep init_test find: /etc/rc5.d/S99init_test find: /etc/rc4.d/S99init_test find: /etc/rc2.d/S99init_test find: /etc/rc3.d/S99init_test The script runs through source and ./ without issue and behaves correctly. Here is the source of the script: #!/bin/bash ### BEGIN INIT INFO # Provides: init test script # Required-Start: $remote_fs $syslog # Required-Stop: $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start daemon at boot time # Description: Enable service provided by daemon. ### END INIT INFO start() { echo "hi" echo "start called" >> /tmp/test.log return } stop() { echo "Stopping" } echo "Script called" >> /tmp/test.log case "$1" in start) start ;; stop) stop ;; *) echo "Usage: {start|stop|restart}" exit 1 ;; esac exit $? When the machine starts, I don't see "script called" or "start called" in the test.log at all. Is there anything obvious I'm messing up?

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  • Second DocumentRoot for certain URLS

    - by scrr
    Hello, I have the following setup in my apache-config: <VirtualHost 1.2.3.4:80> ServerName example.com:80 ServerAlias www.example.com DocumentRoot /var/www/page <Location "/blog"> DocumentRoot /var/www/blog </Location> RailsBaseURI / RailsEnv development </VirtualHost> However, Apache tells me, I am not allowed to have a second DocumentRoot. How can I make "www.example.com/blog" point to "/var/www/blog"? I'm sure this is basic, but I just can't find the proper documentation online.

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  • OpenSSL missing during ./configure. How to fix?

    - by P K
    I was trying to install node.js and found OpenSSL support missing during ./configure. How can I fix it? Is it a mandatory step? # ./configure Checking for gcc : ok Checking for library dl : not found Checking for openssl : not found Checking for function SSL_library_init : not found Checking for header openssl/crypto.h : not found /home/ec2-user/node-v0.6.6/wscript:374: error: Could not autodetect OpenSSL support. Make sure OpenSSL development packages are installed. Use configure --without-ssl to disable this message.

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  • TTY with 256 colors?

    - by timn
    With URxvt and xterm it is possible to use a virtual terminal supporting 256 colors instead of only eight. Since my Intel GMA graphics card is well-supported by the KMS framebuffer driver, I am exclusively working on the TTY. Unfortunately it only supports eight colors although with MPlayer (-vo fbdev/fbdev2) and other framebuffer tools far more can be addressed. Is there a way to tell the TTY to use more than eight colors?

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  • Set up tunnel to HE.net and now only ipv6.google.com works, but other sites ping fine.

    - by AndrejaKo
    I'm setting up IPv6 using my router which is running OpenWRT, version Backfire 10.03.1-rc4. I made a tunnel using Hurricane Electric's tunnel broker and set it up on the router and I'm using RADVD to hand out IPv6 addresses. My problem is that on computers on the network, I can only access ipv6.google.com using a browser, but other sites seem to be loading forever and won't open in any browser. I can ping and traceroute to them fine, but can't open them with a browser. I can open any site normally with a browser from the router. Stopping firewall service on the router doesn't help, so it's probably not a firewall issue. All AAAA records resolve fine, so it's probably not a DNS issue. Computers on the network get their IPv6 addresses fine, so it's probably not a radvd issue. Similar setup worked fine for SixXs, but I'm having problems with my PoP there, so I decided to move to HE. Here are some traceroutes: From a client computer: Tracing route to ipv6.he.net [2001:470:0:64::2] over a maximum of 30 hops: 1 <1 ms 1 ms 1 ms 2001:470:1f0b:de5::1 2 62 ms 63 ms 62 ms andrejako-1.tunnel.tserv6.fra1.ipv6.he.net [2001:470:1f0a:de5::1] 3 60 ms 60 ms 63 ms gige-g2-4.core1.fra1.he.net [2001:470:0:69::1] 4 63 ms 68 ms 68 ms 10gigabitethernet1-4.core1.ams1.he.net [2001:470:0:47::1] 5 84 ms 74 ms 76 ms 10gigabitethernet1-4.core1.lon1.he.net [2001:470:0:3f::1] 6 146 ms 147 ms 151 ms 10gigabitethernet4-4.core1.nyc4.he.net [2001:470:0:128::1] 7 200 ms 198 ms 202 ms 10gigabitethernet5-3.core1.lax1.he.net [2001:470:0:10e::1] 8 219 ms * 210 ms 10gigabitethernet2-2.core1.fmt2.he.net [2001:470:0:18d::1] 9 221 ms 338 ms 209 ms gige-g4-18.core1.fmt1.he.net [2001:470:0:2d::1] 10 206 ms 210 ms 207 ms ipv6.he.net [2001:470:0:64::2] Trace complete. and another from a cliet computer Tracing route to whatismyipv6.com [2001:4870:a24f:2::90] over a maximum of 30 hops: 1 7 ms 1 ms 1 ms 2001:470:1f0b:de5::1 2 69 ms 70 ms 63 ms AndrejaKo-1.tunnel.tserv6.fra1.ipv6.he.net [2001:470:1f0a:de5::1] 3 57 ms 65 ms 58 ms gige-g2-4.core1.fra1.he.net [2001:470:0:69::1] 4 73 ms 74 ms 75 ms 10gigabitethernet1-4.core1.ams1.he.net [2001:470:0:47::1] 5 71 ms 74 ms 76 ms 10gigabitethernet1-4.core1.lon1.he.net [2001:470:0:3f::1] 6 141 ms 149 ms 148 ms 10gigabitethernet2-3.core1.nyc4.he.net [2001:470:0:3e::1] 7 141 ms 147 ms 143 ms 10gigabitethernet1-2.core1.nyc1.he.net [2001:470:0:37::2] 8 144 ms 145 ms 142 ms 2001:504:1::a500:4323:1 9 226 ms 225 ms 218 ms 2001:4870:a240::2 10 220 ms 224 ms 219 ms 2001:4870:a240::2 11 219 ms 218 ms 220 ms 2001:4870:a24f::2 12 221 ms 222 ms 220 ms www.whatismyipv6.com [2001:4870:a24f:2::90] Trace complete. Here's some firewall info on the router: root@OpenWrt:/# iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 syn_flood tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02 input_rule all -- 0.0.0.0/0 0.0.0.0/0 input all -- 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy DROP) target prot opt source destination zone_wan_MSSFIX all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED forwarding_rule all -- 0.0.0.0/0 0.0.0.0/0 forward all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 output_rule all -- 0.0.0.0/0 0.0.0.0/0 output all -- 0.0.0.0/0 0.0.0.0/0 Chain forward (1 references) target prot opt source destination zone_lan_forward all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_forward all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_forward all -- 0.0.0.0/0 0.0.0.0/0 Chain forwarding_lan (1 references) target prot opt source destination Chain forwarding_rule (1 references) target prot opt source destination nat_reflection_fwd all -- 0.0.0.0/0 0.0.0.0/0 Chain forwarding_wan (1 references) target prot opt source destination Chain input (1 references) target prot opt source destination zone_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan all -- 0.0.0.0/0 0.0.0.0/0 Chain input_lan (1 references) target prot opt source destination Chain input_rule (1 references) target prot opt source destination Chain input_wan (1 references) target prot opt source destination Chain nat_reflection_fwd (1 references) target prot opt source destination ACCEPT tcp -- 192.168.1.0/24 192.168.1.2 tcp dpt:80 Chain output (1 references) target prot opt source destination zone_lan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain output_rule (1 references) target prot opt source destination Chain reject (7 references) target prot opt source destination REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 reject-with tcp-reset REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain syn_flood (1 references) target prot opt source destination RETURN tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02 limit: avg 25/sec burst 50 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan (1 references) target prot opt source destination input_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_lan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_ACCEPT (2 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_DROP (0 references) target prot opt source destination DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_MSSFIX (0 references) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU Chain zone_lan_REJECT (1 references) target prot opt source destination reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_forward (1 references) target prot opt source destination zone_wan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 forwarding_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_lan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan (2 references) target prot opt source destination ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8 ACCEPT 41 -- 0.0.0.0/0 0.0.0.0/0 input_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_ACCEPT (2 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_DROP (0 references) target prot opt source destination DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_MSSFIX (1 references) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU Chain zone_wan_REJECT (2 references) target prot opt source destination reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_forward (2 references) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 192.168.1.2 forwarding_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Here's some routing info: root@OpenWrt:/# ip -f inet6 route 2001:470:1f0a:de5::/64 via :: dev 6in4-henet proto kernel metric 256 mtu 1280 advmss 1220 hoplimit 0 2001:470:1f0b:de5::/64 dev br-lan proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev br-lan proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0.1 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0.2 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 via :: dev 6in4-henet proto kernel metric 256 mtu 1280 advmss 1220 hoplimit 0 default dev 6in4-henet metric 1024 mtu 1280 advmss 1220 hoplimit 0 I have computers running windows 7 SP1 and openSUSE 11.3 and all of them have same problem. I also made a thread about this on HE's forum, but it seems that people there are out of ideas what to do.

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  • NetFlow Storage Calculator

    - by javano
    I am planning to deploy a NetFlow server (using NfSen/NfDump) for harvesting data from Cisco devices; Are there standard calculations or guidelines I can use to calculate my server requirements, specifically I need to plan for storage. Is there a way of knowing how much data I will collect per day for example, given N flows? Lets say one device has 10k flows per day, this is typically XYZ MBs, so I can scale this up? If not, how many flows are you guys and girls recording per day, and how much data is this generating? Hopefully we can generate an estimate from everyone else's figures! P.S. If it makes a difference, I'll be collecting from <= 50 devices max (non more than 50Mbps each).

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  • Application to store/browse/view photos?

    - by amorfis
    I am looking for application which I can install on Ubuntu server and put my photos there. It can be by web interface, it can be by mounted samba disk. What I require: Ability to add tags to photos. Ability to move photos. I.e. if I set photos directory to /home/photos, but then I want to move all photos to e.g. /home/common/photos - I don't want to lose all the tags. I used to use FSpot and it was great, but it lacked point 2, and I lost everything :(

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  • Strange DNS problem [seems to be IPv6 issue]

    - by Homer J. Simpson
    Hi, I'm experiencing strange problems with my Kubuntu 9.10 when doing DNS requests from various applications. The requests are extremely slow, so loading any pages in Firefox or Konqueror, doing package installations in Kpackagemanager and other apps is really painful, while for example Opera doesnt have any problems, and ping is normally fast as well for DNS pings. I checked the proxy settings of both the used applications as well as of the general system and there are none, so to me it doesn't seem as there was something inbetween.. Does anybody have an idea on what to check for possible problem sources or how to solve this ? I'm behind a DSL home router which does the DHCP (and works well with my other computer). Any kind of advice would be really helpful. Edit: It seems to be some kind of IPv6 problem, as I could get it to work by disabling IPv6 explicitly in Firefox. Is there a general solution to this ?

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  • RTL8168B/8111B Lan card is not detected in Redhat..Error is make ***/lib/modules/2.6.18-53.e15/build

    - by Deepak Narwal
    0 Hello friends... In My computer Lan card model is Realtek RTL8168B/8111B PCI-E GIGABIT ETHERNET NIC (NDIS 6.20) My system is dual boot windows 7 and redhat 5.1.Redhat is not picking up this model of Lan card automaticlly. I tried it by downloading from realtak site for this particular model and find some .tar packages for my kernal and when i tried to install them ... check old drivers & unload it build the module and install make */lib/modules/2.6.18-53.e15/build: no such file or directory stop make[1]: *[modules] error 2 make : [modules] error 2 i downloaded tar files from sites and unpack according to their instrution i tried to run autorun.sh script as mentioned in readme file but after doing this it is showing above error... Now what to do i am not getting

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  • Where is the encfs volume key stored?

    - by Waldorf
    I am trying to use encfs in reverse mode. I understand that the passphase is used to encrypt a key which is then stored encrypted into the encfs6.xml file. What I do not understand is the following. Create en encrypted virtual fs of a folder by using passphrase A unmount this folder. Delete all contents including the encfs6.xml file If you then try to do the same with another passphrse I would expect that a new encfs6.xml would be created. However I get the following error message: "Error decoding volume key, password incorrect" So I wonder, what volume key is incorrect, I thought it was in the encfs6.xml file ?

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  • postfix "mail-pipe" alias shellscript creates permissionless files/dirs

    - by Gung Foo
    I am using an alias to a shellscript in postfix... After the script that is called by the shellscript creates a directory it has no permissions at all.. #!/bin/sh umask 002 cat | php /var/www/html/catchmymail rcvemail result is like this: d--------- 2 apache apache 4096 Sep 17 17:25 50 it works for files tho: -rw-rw---- 1 apache apache 5836288 Sep 18 11:21 test Not even setting umask 002 in the shellscript before it hands the mail on changes a thing Setting umask(0002) inside catchmymail has no effect either. Has anyone seen this behaviour before or an idea to save my day?!? This is extremely confusing and actually insane behaviour from what i understand about umask and file permissions.

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  • nginx reverse proxy cannot access apache virtual hosts

    - by Sc0rian
    I am setting up nginx as a reverse proxy. The server runs on directadmin and lamp stack. I have nginx running on port 81. I can access all my sites (including virtual ips) on the port 81. However when I forward the traffic from port 80 to 81, the virtual ips have a message saying "Apache is running normally". Server IPs are fine, and I can still access virtual IP's on 81. [root@~]# netstat -an | grep LISTEN | egrep ":80|:81" tcp 0 0 <virtual ip>:81 0.0.0.0:* LISTEN tcp 0 0 <virtual ip>:81 0.0.0.0:* LISTEN tcp 0 0 <serverip>:81 0.0.0.0:* LISTEN tcp 0 0 :::80 :::* LISTEN apache 24090 0.6 1.3 29252 13612 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24092 0.9 2.1 39584 22056 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24096 0.2 1.9 35892 20256 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24120 0.3 1.7 35752 17840 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24495 0.0 1.4 30892 14756 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24496 1.0 2.1 39892 22164 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24516 1.5 3.6 55496 38040 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24519 0.1 1.2 28996 13224 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24521 2.7 4.0 58244 41984 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24522 0.0 1.2 29124 12672 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24524 0.0 1.1 28740 12364 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24535 1.1 1.7 36008 17876 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24536 0.0 1.1 28592 12084 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24537 0.0 1.1 28592 12112 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24539 0.0 0.0 0 0 ? Z 18:35 0:00 [httpd] <defunct> apache 24540 0.0 1.1 28592 11540 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24541 0.0 1.1 28592 11548 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL root 24548 0.0 0.0 4132 752 pts/0 R+ 18:35 0:00 egrep apache|nginx root 28238 0.0 0.0 19576 284 ? Ss May29 0:00 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf apache 28239 0.0 0.0 19888 804 ? S May29 0:00 nginx: worker process apache 28240 0.0 0.0 19888 548 ? S May29 0:00 nginx: worker process apache 28241 0.0 0.0 19736 484 ? S May29 0:00 nginx: cache manager process here is my nginx conf: cat /usr/local/nginx/conf/nginx.conf user apache apache; worker_processes 2; # Set it according to what your CPU have. 4 Cores = 4 worker_rlimit_nofile 8192; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] ' '"$request" $status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; server_tokens off; access_log /var/log/nginx_access.log main; error_log /var/log/nginx_error.log debug; server_names_hash_bucket_size 64; sendfile on; tcp_nopush on; tcp_nodelay off; keepalive_timeout 30; gzip on; gzip_comp_level 9; gzip_proxied any; proxy_buffering on; proxy_cache_path /usr/local/nginx/proxy_temp levels=1:2 keys_zone=one:15m inactive=7d max_size=1000m; proxy_buffer_size 16k; proxy_buffers 100 8k; proxy_connect_timeout 60; proxy_send_timeout 60; proxy_read_timeout 60; server { listen <server ip>:81 default rcvbuf=8192 sndbuf=16384 backlog=32000; # Real IP here server_name <server host name> _; # "_" is for handle all hosts that are not described by server_name charset off; access_log /var/log/nginx_host_general.access.log main; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://<server ip>; # Real IP here client_max_body_size 16m; client_body_buffer_size 128k; proxy_buffering on; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 120; proxy_buffer_size 16k; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } location /nginx_status { stub_status on; access_log off; allow 127.0.0.1; deny all; } } include /usr/local/nginx/vhosts/*.conf; } here is my vhost conf: # cat /usr/local/nginx/vhosts/1.conf server { listen <virt ip>:81 default rcvbuf=8192 sndbuf=16384 backlog=32000; # Real IP here server_name <virt domain name>.com ; # "_" is for handle all hosts that are not described by server_name charset off; access_log /var/log/nginx_host_general.access.log main; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://<virt ip>; # Real IP here client_max_body_size 16m; client_body_buffer_size 128k; proxy_buffering on; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 120; proxy_buffer_size 16k; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } Apache config: <VirtualHost xxxxxx:80 > ServerName www.<domain>.com ServerAlias www.<domain>.com <domain>.com ServerAdmin webmaster@<domain>.com DocumentRoot /home/<domain>/domains/<domain>.com/public_html ScriptAlias /cgi-bin/ /home/<domain>/domains/<domain>.com/public_html/cgi-bin/ UseCanonicalName OFF <IfModule !mod_ruid2.c> SuexecUserGroup <domain> <domain> </IfModule> <IfModule mod_ruid2.c> RMode config RUidGid <domain> <domain> RGroups apache access </IfModule> CustomLog /var/log/httpd/domains/<domain>.com.bytes bytes CustomLog /var/log/httpd/domains/<domain>.com.log combined ErrorLog /var/log/httpd/domains/<domain>.com.error.log <Directory /home/<domain>/domains/<domain>.com/public_html> Options +Includes -Indexes php_admin_flag engine ON php_admin_value sendmail_path '/usr/sbin/sendmail -t -i -f <domain>@<domain>.com' </Directory> <virtual ip address>:80 is a NameVirtualHost default server www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:16) port 80 namevhost www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:16) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:107) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:151) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:195) <virtual ip address>:443 is a NameVirtualHost default server www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:61) port 443 namevhost www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:61) <server ip>:80 is a NameVirtualHost default server localhost (/etc/httpd/conf/extra/httpd-vhosts.conf:29) port 80 namevhost localhost (/etc/httpd/conf/extra/httpd-vhosts.conf:29) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/admin/httpd.conf:16)

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  • "Possible SYN flooding" in log despite low number of SYN_RECV connections

    - by al4
    Recently we had an apache server which was responding very slowly due to SYN flooding. The workaround for this was to enable tcp_syncookies (net.ipv4.tcp_syncookies=1 in /etc/sysctl.conf). I posted a question about this here if you want more background. After enabling syncookies we started seeing the following message in /var/log/messages approximately every 60 seconds: [84440.731929] possible SYN flooding on port 80. Sending cookies. Vinko Vrsalovic informed me that this means the syn backlog is getting full, so I raised tcp_max_syn_backlog to 4096. At some point I also lowered tcp_synack_retries to 3 (down from the default of 5) by issuing sysctl -w net.ipv4.tcp_synack_retries=3. After doing this, the frequency seemed to drop, with the interval of the messages varying between roughly 60 and 180 seconds. Next I issued sysctl -w net.ipv4.tcp_max_syn_backlog=65536, but am still getting the message in the log. Throughout all this I've been watching the number of connections in SYN_RECV state (by running watch --interval=5 'netstat -tuna |grep "SYN_RECV"|wc -l'), and it never goes higher than about 240, much much lower than the size of the backlog. Yet I have a Red Hat server which hovers around 512 (limit on this server is the default of 1024). Are there any other tcp settings which would limit the size of the backlog or am I barking up the wrong tree? Should the number of SYN_RECV connections in netstat -tuna correlate to the size of the backlog? Update As best I can tell I'm dealing with legitimate connections here, netstat -tuna|wc -l hovers around 5000. I've been researching this today and found this post from a last.fm employee, which has been rather useful. I've also discovered that the tcp_max_syn_backlog has no effect when syncookies are enabled (as per this link) So as a next step I set the following in sysctl.conf: net.ipv4.tcp_syn_retries = 3 # default=5 net.ipv4.tcp_synack_retries = 3 # default=5 net.ipv4.tcp_max_syn_backlog = 65536 # default=1024 net.core.wmem_max = 8388608 # default=124928 net.core.rmem_max = 8388608 # default=131071 net.core.somaxconn = 512 # default = 128 net.core.optmem_max = 81920 # default = 20480 I then setup my response time test, ran sysctl -p and disabled syncookies by sysctl -w net.ipv4.tcp_syncookies=0. After doing this the number of connections in the SYN_RECV state still remained around 220-250, but connections were starting to delay again. Once I noticed these delays I re-enabled syncookies and the delays stopped. I believe what I was seeing was still an improvement from the initial state, however some requests were still delayed which is much worse than having syncookies enabled. So it looks like I'm stuck with them enabled until we can get some more servers online to cope with the load. Even then, I'm not sure I see a valid reason to disable them again as they're only sent (apparently) when the server's buffers get full. But the syn backlog doesn't appear to be full with only ~250 connections in the SYN_RECV state! Is it possible that the SYN flooding message is a red herring and it's something other than the syn_backlog that's filling up? If anyone has any other tuning options I haven't tried yet I'd be more than happy to try them out, but I'm starting to wonder if the syn_backlog setting isn't being applied properly for some reason.

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  • NoMachine NX window closes after establishing connection

    - by blackicecube
    I am trying to use nomachine nx server and client. But somehow it doen't work. What happens is the following: Client starts up Client authenticates with Server The NoMachine window appears for 2-4 seconds The NoMachine window exists Somehow a "closeEvent" is sent. Here's what I see in the log file: [Thu Sep 24 11:20:37 2009]: Starting nxcomp with options: 'NX 299 Switch connection to: NX mode: unencrypted options: nx/nx,options=/home/foo/.nx/S-adnws029-1022-7EEF1367361DB2A7F4D9F76B06F4B434/options:1022'. [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor: opened file: [/home/foo/.nx/S-adnws029-1022-7EEF1367361DB2A7F4D9F76B06F4B434/session] [Thu Sep 24 11:20:38 2009]: LoginDialog::ShowConnectionStatus code=[246] str=[Initializing X protocol compression] error=[0] [Thu Sep 24 11:20:38 2009]: ProgressDialog::printNxStatus: [Initializing X protocol compression] [Thu Sep 24 11:20:38 2009]: LoginDialog::ShowConnectionStatus code=[247] str=[Established the display connection] error=[0] [Thu Sep 24 11:20:38 2009]: ProgressDialog::printNxStatus: [Established the display connection] [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: LoginDialog: slotAgentTimer [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: QClipboard: Unknown SelectionClear event received. [Thu Sep 24 11:20:38 2009]: LoginDialog: slotAgentTimer [Thu Sep 24 11:20:38 2009]: LoginDialog: Agent found closing windows... [Thu Sep 24 11:20:38 2009]: LoginDialog: setting automatic reconnection to true. [Thu Sep 24 11:20:38 2009]: Settings::flush [Thu Sep 24 11:20:38 2009]: Settings::flush [Thu Sep 24 11:20:38 2009]: LoginDialog: closeEvent received! [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: NXFileMonitor::readData [Thu Sep 24 11:20:38 2009]: LoginDialog::destructor called begin [Thu Sep 24 11:20:38 2009]: LoginDialog: stopAllTimers [Thu Sep 24 11:20:38 2009]: LoginDialog: stopProgressTimer [Thu Sep 24 11:20:38 2009]: Utility::getPreferencesFile: 'nxclient' - '/home/foo/.nx/config/nxclient.cfg' [Thu Sep 24 11:20:38 2009]: Settings::flush [Thu Sep 24 11:20:38 2009]: Called destructor for protocol class [Thu Sep 24 11:20:38 2009]: LoginDialog::destructor called end Anyone with a helpful idea?

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  • Prevent udev / uevents looking up DVD at boot time

    - by Sampo
    Problem: Boot time delay caused by udev. Early after initscripts starts there is message saying waiting for uevents to be processed and causing delay on boot, it seems that udev is looking if there is disc in dvd tray. After udev has found disc, boot process continues normally. Main question: How to prevent udev dvd lookup at boot time? Maybe there is some way to skip some udev related stuff and let boot process continue and then later instruct udev to do stuff that may cause some delay (delay in uevents, but not in main boot process, is acceptable after udev is initially loaded).

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  • Clonezilla-SE with another DHCP Server in LAN

    - by aleroot
    I want to install Clonezilla-Server(192.168.1.100) in a network that already have a DHCP Server (dd-wrt with dnsmasq - 192.168.1.1). I've installed Clonezilla-SE on ubuntu Server 10.10, once installed and configured Clonezilla Server i've removed the DHCP-Server and set pxe server address in dnsmasq configuration on DHCP Server : dhcp-boot=pxelinux.0,,192.168.1.100 When i try to start from PXE a Computer in the network clonezilla start, but give me an error that the ipddress of the machine is not given by the clonezilla server and can't continue ... Someone has already tried to configure Clonezilla-SE in a similar enviroment? Is there some configuration on DRBL server of Clonezilla that i need to do ?

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