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  • Whats the best way to update Ubuntu 9.04?

    - by Fu86
    I have a Ubuntu 9.04 server which has no packase support anymore. If I want to update my package lists, I get th following errors: Err http://de.archive.ubuntu.com jaunty-security/multiverse Packages 404 Not Found [IP: 141.30.13.10 80] W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/jaunty/main/binary-amd64/Packages 404 Not Found [IP: 141.30.13.10 80] .... I read at the official Ubuntu-Support-Page, that there is a update-manager-core-Package to upgrade to a new release. Unfortunately I dont have this package installed and I am unable to install it because of the lack of package sources. EDIT: Installing the package update-manager-core from another release doesn't work because it depends on a higher version of python-apt. (Tried with 10.04) $ dpkg -i update-manager-core_0.134.7_amd64.deb Selecting previously deselected package update-manager-core. (Reading database ... 28743 files and directories currently installed.) Unpacking update-manager-core (from update-manager-core_0.134.7_amd64.deb) ... dpkg: dependency problems prevent configuration of update-manager-core: update-manager-core depends on python-apt (>= 0.7.13.4ubuntu3); however: Version of python-apt on system is 0.7.9~exp2ubuntu10. update-manager-core depends on python-gnupginterface; however: Package python-gnupginterface is not installed. dpkg: error processing update-manager-core (--install): dependency problems - leaving unconfigured Errors were encountered while processing: update-manager-core So, whats the best way to upgrade to to current Release without reinstalling the complete (virtual) server?

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  • Overriding some DNS entries in BIND for internal networks

    - by Remy Blank
    I have an internal network with a DNS server running BIND, connected to the internet through a single gateway. My domain "example.com" is managed by an external DNS provider. Some of the entries in that domain, say "host1.example.com" and "host2.example.com", as well as the top-level entry "example.com", point to the public IP address of the gateway. I would like hosts located on the internal network to resolve "host1.example.com", "host2.example.com" and "example.com" to internal IP addresses instead of that of the gateway. Other hosts like "otherhost.example.com" should still be resolved by the external DNS provider. I have succeeded in doing that for the host1 and host2 entries, by defining two single-entry zones in BIND for "host1.example.com" and "host2.example.com". However, if I add a zone for "example.com", all queries for that domain are resolved by my local DNS server, and e.g. querying "otherhost.example.com" results in an error. Is it possible to configure BIND to override only some entries of a domain, and to resolve the rest recursively?

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  • mount error 5 = Input/output error

    - by alharaka
    I am running out of ideas. After a long period of testing this morning, I cannot seem to get this to work, and I have no idea why. I want to mount a Windows SMB/CIFS share with a Debian 5.0.4 VM, and it is not cooperating. This the command I am using. debianvm:/home/me# whoami root debianvm:/home/me# smbclient --version Version 3.2.5 debianvm:/home/me# mount -t cifs //hostname.domain.tld/share /mnt/hostname.domain.tld/share --verbose -o user=SUBADDOMAIN.ADDOMAIN.DOMAIN.TLD/username mount.cifs kernel mount options: unc=//hostname.domain.tld\share,ip=10.212.15.53,domain=SUBADDOMAIN.ADDOMAIN.DOMAIN.TLD,ver=1,rw,user=username,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,pass=*********mount error 5 = Input/output error Refer to the mount.cifs(8) manual page (e.g.man mount.cifs) debianvm:/home/me# The word on the nets has not been very specific, and unfortunately it is almost always environment-specific. I receive no authentication errors. I have tried mount -t smbfs and mount -t cifs, along with smbmount and such. I get the same error before. I doubt it is a problem with DNS resolution, because logging shows the correct IP address. dmesg | tail -f no longer shows authentication errors when I format the domain and username accordingly. I have played a little with iocharset=utf8, file_mode, and dir_mode as described here. That did not help either. I have also tried ntlm and ntlmv2 assuming it might be a minimum auth method problem, but not forcing sec=ntlmv2 it can still authenticate without errors anymore. smbclient -L hostname.domain.tld -W SUBADDOMAIN.ADDOMAIN.DOMAIN.TLD -U username correctly lists all the shares and shows it as the following. Domain=[SUBADDOMAIN] OS=[Windows 5.0] Server=[Windows 2000 LAN Manager] Sharename Type Comment --------- ---- ------- IPC$ IPC Remote IPC ETC$ Disk Remote Administration C$ Disk Remote Administration Share Disk Connection to hostname.domain.tld failed (Error NT_STATUS_CONNECTION_REFUSED) NetBIOS over TCP disabled -- no workgroup available I find the last line intriguing/alarming. Does anyone have any pointers!? Maybe I misread the effin manual.

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  • pppd disconnects from 3G, doesn't reconnect, w/ persist set

    - by bytenik
    I am trying to configure pppd to connect to a 3G network (Sprint, in this case) and then stay connected, reconnecting automatically if the remote connection is terminated. I have enabled the persist option. My configuration file is as follows: hide-password noauth connect "/usr/sbin/chat -v -f /etc/chatscripts/cellular" debug /dev/cell 921600 defaultroute noipdefault user " " persist maxfail 0 lcp-echo-failure 10 lcp-echo-interval 60 holdoff 5 However, when the peer disconnects the connection, pppd often waits a long time (substantially more than my holdoff) to reconnect the modem -- if it ever reconnects at all! An example log showing this: May 23 05:17:24 00270e0a8888 pppd[2408]: rcvd [LCP TermReq id=0x26] May 23 05:17:24 00270e0a8888 pppd[2408]: LCP terminated by peer May 23 05:17:24 00270e0a8888 pppd[2408]: Connect time 60.1 minutes. May 23 05:17:24 00270e0a8888 pppd[2408]: Sent 0 bytes, received 0 bytes. May 23 05:17:24 00270e0a8888 pppd[2408]: Script /etc/ppp/ip-down started (pid 2456) May 23 05:17:24 00270e0a8888 pppd[2408]: sent [LCP TermAck id=0x26] May 23 05:17:24 00270e0a8888 pppd[2408]: Script /etc/ppp/ip-down finished (pid 2456), status = 0x0 May 23 05:17:24 00270e0a8888 pppd[2408]: Hangup (SIGHUP) May 23 05:17:24 00270e0a8888 pppd[2408]: Modem hangup May 23 05:17:24 00270e0a8888 pppd[2408]: Connection terminated. May 23 05:17:24 00270e0a8888 pppd[2408]: Terminating on signal 15 May 23 05:17:24 00270e0a8888 pppd[2408]: Exit. May 23 06:08:07 00270e0a8888 pppd[2500]: pppd 2.4.5 started by root, uid 0 May 23 06:08:10 00270e0a8888 pppd[2500]: Script /usr/sbin/chat -v -f /etc/chatscripts/cellular finished (pid 2530), status = 0x0 May 23 06:08:10 00270e0a8888 pppd[2500]: Serial connection established. May 23 06:08:10 00270e0a8888 pppd[2500]: using channel 11 The disconnect at the request of the peer occurs at 5:17, but the reconnect didn't happen until 6:08. I had a friend monitoring the server so I'm not certain that this wasn't a manual reconnection. Either way, it either took almost an hour to reconnect or never reconnected. Shouldn't persist + holdoff 5 cause this to automatically reconnect after 5 seconds of the link terminating?

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  • Kickstart: Serve dynamic kickstart images via a CGI or PHP script?

    - by Stefan Lasiewski
    I'd like to kickstart a couple dozen RHEL6/SL6 servers. However, some of these servers are different and I don't want to create a new ks.cfg file for each class of server. Are there any products which can generate a Kickstart file dynamically on the fly, from a template? For example, if I append a line like this to the KERNEL: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi Then the script ks.cgi can determine what host this is (Via the MAC address), and print out Kickstart options which are appropriate for that host. I could optionally override some options by passing parameters to the script, like this: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi?NODETYPE=production&IP=192.168.2.80 After we kickstart the server, we activate Cfengine/Puppet on this system and manage the system using our favorite Configuration Management product. We're experimenting with xCAT but it is proving too cumbersome. I've looked into Cobbler, but I'm not sure it does this. Update: A roll-your-own solution is discussed in the O'Reilly book: Managing RPM-Based Systems with Kickstart and Yum, Chapter 3. Customizing Your Kickstart Install Dynamic ks.cfg, which echos some of the comments in this thread: To implement such a tool is beyond the scope of this Short Cut, but I can walk through the high-level design. Any such solution would mix a data store (the things that change) with a templating solution (the things that don’t change). The data store would hold the per-machine data, such as the IP address and hostname. You would also need a unique identifier, perhaps the hostname, such that you could pick up a given machine’s data. The data store could be a flat file, XML data, or a relational database such as PostgreSQL or MySQL. In turn, to invoke the system, you pass a machine’s unique identifier as a URL parameter. For example: boot: linux ks=http://your.kickstart.server/gen_config?host-server25 In this example, the CGI (or servlet, or whatever) generates a ks.cfg for the machine server25. But where, oh where, is the code for ks.cgi?

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  • Unable to ping gateway via bridge nic

    - by Ara
    I'm trying to install KVM on Ubuntu 12.04 server. We have multiple nic on this server of which we primarily use eth0. The server network runs fine(i'm able to ping gateway, ping dns server and ping servers on internet) with eth0 /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.22.194 netmask 255.255.255.0 network 192.168.22.0 broadcast 192.168.22.255 gateway 192.168.22.1 dns-nameservers 10.71.130.58 10.71.130.60 dns-search test.local I installed bridge-utils and configured br0 as below /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address 192.168.22.194 netmask 255.255.255.0 network 192.168.22.0 broadcast 192.168.22.255 gateway 192.168.22.1 dns-nameservers 10.71.130.58 10.71.130.60 dns-search test.local bridge_ports eth0 bridge_fd 9 bridge_hello 2 bridge_maxage 12 bridge_stp off Post which i'm able to ping servers on the same ip range 192.168.22.2-254 except for 192.168.22.1 (which is the gateway) also i'm not able to ping any other servers. I'm not able to ping this machine from network. The output for route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.22.1 0.0.0.0 UG 100 0 0 br0 192.168.22.0 0.0.0.0 255.255.255.0 U 0 0 0 br0 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 I've been struggling with this issue for past 5 days, would be of help if anyone can point me in the right direction to fix this issue. Thanks in advance

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  • Provisioning DELL servers using only linux tools

    - by Krist van Besien
    We have taken delivery of a bunch off Dell Poweredge Rack servers. Unfortunately when ordering it was neglegted to ask for dhcp to be enabled in the built in iDRAC controlers... So they are all stuck on the same IP address. Which means that I'll have to go to each of them individually and configure a new IP in the console... In the future I want to avoid that. Now Dell proposes to deliver the next batch with auto discovery enabled. As I understand this means that when the machine wakes up for the first time the iDRAC will request a DHCP address. The DHCP server then supposedly also provides a "provisioning" server, that provides it with a username and password, and a configuration to be applied. This would allow us to for example configure things like RAID automatically. However, I can't seem to find a way to set up such a provisioning server that does not involve setting up a windows machine. I want to use Linux tools exclusively. Is there a way to do this? I want to just rack servers, switch them on, and then do everything remotely. And that using only linux tools?

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  • Natting trafic from a tunnel to internet

    - by mezgani
    I'm trying to set up a GRE tunnel between a linux box and a router (LAN), and I'm having a few problems which seem to depend to my iptables configuration. Watching with tcpdump on linux box, I can see packets coming with flags GREv0, all i need right know is forwarding this data to internet, found here some trace : iptables -F iptables -X iptables -P INPUT ACCEPT iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT iptables -t nat -F iptables -t nat -X iptables -t nat -P PREROUTING ACCEPT iptables -t nat -P POSTROUTING ACCEPT iptables -t nat -P OUTPUT ACCEPT iptables -t mangle -F iptables -t mangle -X iptables -t mangle -P PREROUTING ACCEPT iptables -t mangle -P OUTPUT ACCEPT iptables -A INPUT -p 47 -j ACCEPT iptables -A FORWARD -i ppp0 -o cloud -j ACCEPT iptables -A FORWARD -i cloud -o ppp0 -j ACCEPT iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE echo "1" /proc/sys/net/ipv4/ip_forward cloud Link encap:UNSPEC HWaddr C4-CE-7A-2E-F2-BF-DD-C0-00-00-00-00-00-00-00-00 inet adr:10.3.3.3 P-t-P:10.3.3.3 Masque:255.255.255.255 UP POINTOPOINT RUNNING NOARP MTU:1476 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:124 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:0 (0.0 B) TX bytes:10416 (10.1 KiB) Table de routage IP du noyau Destination Passerelle Genmask Indic MSS Fenêtre irtt Iface 196.206.120.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 10.3.3.0 0.0.0.0 255.255.255.0 U 0 0 0 cloud 0.0.0.0 196.206.120.1 0.0.0.0 UG 0 0 0 ppp0 root@aldebaran:~# ip route 196.206.120.1 dev ppp0 proto kernel scope link src 196.206.122.46 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.18 10.3.3.0/24 dev cloud scope link default via 196.206.120.1 dev ppp0

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  • filter / directing URLs coming onto a network

    - by Jon
    Hi all, I an not sure if this is possible or not but what i would like to do is as follows: I have one IP address (dynamic using zoneedit.com to keep it upto date). I have one webserver running my main site which is an Ubuntu machine running Apache. I also have a windows 2008 server running another site. Just to confuse things I also run part of my Apache site on the windows server, currently using proxypassreverse to get the information from it. So it looks something like this: IP 1.2.3.4 maps to mydomain.com as well as myotherdomain.com All requests that come into port 80 are forwarded to the Apache box and I use Virtualhost settings to proxy the windows sites where needed. so mydomain.com is an Apache site mydomain.com/mywindowssection is the Apache server using proxypassreverse to get part of the site from the Windows server myotherdomain.com uses Apache and proxypassreverse to get the whole site. What I would like to be able to do is forward all http requests that come into my network to one machine that figures out who should be serving that content. so: mydomain.com would go to the Apache machine myotherdomain.com would go the windows machine. I am just in the process of setting up an Astaro gateway (never done this before so taking a while to configure) as my firewall, dns, dhcp etc, don't know if this can handle it. I have the capacity to run a VM on the network if a seperate box would be needed for this process as well. Thanks for any and all feedback. Jon

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  • Amazon EC2 instance missing Network Interface

    - by Sergiks
    I am running Linux on a t1.micro instance at Amazon EC2. Once I noticed bruteforce ssh login attemtps from a certain IP, after litle Googling I issued the two following commands (other ip): iptables -A INPUT -s 202.54.20.22 -j DROP iptables -A OUTPUT -d 202.54.20.22 -j DROP Either this, or maybe some other actions like yum upgrade perhaps, caused the follwing fiasco: after rebooting the server, it came up without the Network Interface! I only can connect to it through AWS Management Console JAVA ssh client - via local 10.x.x.x address. Console's Attach Network Interface as well as Detach.. are greyed out for this instance. Network Interfaces item at the left does not offer any Subnets to choose from, to create a new N.I. Please advice, how can I recreate a Network Interface for the instance? Upd. The instance is not accessible from outside: cannot be pinged, SSH'ed or connected by HTTP on port 80. Here's the ifconfig output: eth0 Link encap:Ethernet HWaddr 12:31:39:0A:5E:06 inet addr:10.211.93.240 Bcast:10.211.93.255 Mask:255.255.255.0 inet6 addr: fe80::1031:39ff:fe0a:5e06/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1426 errors:0 dropped:0 overruns:0 frame:0 TX packets:1371 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:152085 (148.5 KiB) TX bytes:208852 (203.9 KiB) Interrupt:25 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) What is also unusual: a new micro instance I created from scratch, with no relation to the troubled one, was not pingable too.

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  • Configure one IIS site to handle two separate SSL certificates using external Load Balancing or SSL Acceleration Servers

    - by bmccleary
    I have one web application on our server that needs to be referenced by two different domain names, both of which have their own SSL certificates. The application is exactly the same for both domains, but we have to keep the two domain names for legal reasons. The problem is that, since both domains need to have their own SSL certificate, that inside of our IIS 7.5 configuration we have to have two separate IIS applications (both pointing to the same physical location) with their own unique IP address and SSL certificate installed. Now, I know that, due to the nature of SSL communications, that this is by design and that you can't assign more than one SSL certificate per IP address and domain name. My question is… is there any way around this limitation and keep one web application in IIS and have it service two SSL certificates based on host name? I know that with the basic IIS configuration that this is not possible, but I was thinking that with some sort of combination of external load balancing and/or SSL acceleration servers/services that we could have these servers process the SSL request and leave IIS clean to have one single application. I am not familiar at all with these technologies, hence the reason I am asking if it is theoretically possible. If not, does anyone else know how to achieve this?

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  • Virtual Machine Network Architecture, Isolating Public and Private Networks

    - by Mark
    I'm looking for some insight into best practices for network traffic isolation within a virtual environment, specifically under VMWARE ESXi. Currently I have (in testing) 1 hardware server running ESXi but i expect to expand this to multiple pieces of hardware. The current setup is as follows: 1 pfsense VM, this VM accepts all outside (WAN/internet) traffic and performs firewall/port forwarding/NAT functionality. I have multiple public IP addresses sent to the this VM that are used for access to individual servers (via per incoming IP port forwarding rules). This VM is attached to the private (virtual) network that all other VMs are on. It also manages a VPN link into the private network with some access restrictions. This isn't the perimeter firewall but rather the firewall for this virtual pool only. I have 3 VMs that communicate with each other, as well as have some public access requirements: 1 LAMP server running an eCommerce site, public internet accessible 1 accounting server, access via windows server 2008 RDS services for remote access by users 1 inventory/warehouse management server, VPN to client terminals in warehouses These servers constantly talk with each other for data synchronization. Currently all the servers are on the same subnet/virtual network and connected to the internet through the pfsense VM. The pfsense firewall uses port forwarding and NAT to allow outside access to the servers for services and for server access to the internet. My main question is this: Is there a security benefit to adding a second virtual network adapter to each server and controlling traffic such that all server to server communication is on one separate virtual network, while any access to the outside world is routed through the other network adapter, through the firewall, and on the the internet. This is the type of architecture i would use if these were all physical servers, but i'm unsure if the networks being virtual changes the way i should approach locking down this system. Thank you for any thoughts or direction to any appropriate literature.

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  • TCPDump and IPTables DROP by string

    - by Tiffany Walker
    by using tcpdump -nlASX -s 0 -vvv port 80 I get something like: 14:58:55.121160 IP (tos 0x0, ttl 64, id 49764, offset 0, flags [DF], proto TCP (6), length 1480) 206.72.206.58.http > 2.187.196.7.4624: Flags [.], cksum 0x6900 (incorrect -> 0xcd18), seq 1672149449:1672150889, ack 4202197968, win 15340, length 1440 0x0000: 4500 05c8 c264 4000 4006 0f86 ce48 ce3a E....d@[email protected].: 0x0010: 02bb c407 0050 1210 63aa f9c9 fa78 73d0 .....P..c....xs. 0x0020: 5010 3bec 6900 0000 0f29 95cc fac4 2854 P.;.i....)....(T 0x0030: c0e7 3384 e89a 74fa 8d8c a069 f93f fc40 ..3...t....i.?.@ 0x0040: 1561 af61 1cf3 0d9c 3460 aa23 0b54 aac0 .a.a....4`.#.T.. 0x0050: 5090 ced1 b7bf 8857 c476 e1c0 8814 81ed P......W.v...... 0x0060: 9e85 87e8 d693 b637 bd3a 56ef c5fa 77e8 .......7.:V...w. 0x0070: 3035 743a 283e 89c7 ced8 c7c1 cff9 6ca3 05t:(>........l. 0x0080: 5f3f 0162 ebf1 419e c410 7180 7cd0 29e1 _?.b..A...q.|.). 0x0090: fec9 c708 0f01 9b2f a96b 20fe b95a 31cf ......./.k...Z1. 0x00a0: 8166 3612 bac9 4e8d 7087 4974 0063 1270 .f6...N.p.It.c.p What do I pull to use IPTables to block via string. Or is there a better way to block attacks that have something in common? Question is: Can I pick any piece from that IP packet and call it a string? iptables -A INPUT -m string --alog bm --string attack_string -j DROP In other words: In some cases I can ban with TTL=xxx and use that should an attack have the same TTL. Sure it will block some legit packets but if it means keeping the box up it works till the attack goes away but I would like to LEARN how to FIND other common things in a packet to block with IPTables

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  • Troubleshooting wireless client-bridged networks between two DD-WRT routers?

    - by KronoS
    I recently purchased a Buffalo N600 wireless router which came with DD-WRT pre-installed. I want to take my old wireless router a Linksys WRT54GL, also with DD-WRT pre-installed, and use it as a wireless bridge for my HTPC and Blu-Ray Player in the other room. I other words, I'm trying to connect to WIRED networks via the wireless on the routers. I followed eactly the instruction from DD-WRT's manual for 'Client Bridged' however I'm still not able to connect to two routers correctly, when the encryption is enabled (WPA2-Personal Mixed) however I am able to connect the two routers when there is NO encryption. I've checked, double checked, and triple checked that EVERYTHING is the same on BOTH routers: Routers 1 & 2 Encryption: WPA2-Personal Mixed Wireless Mode: G-Only Wireless Channel: 6 Subnet Mask: 255.255.255.0 Subnet: 192.168.1.0/254 SSID: Krono$ Primary Router #1 (Buffalo N600) IP Address: 192.168.1.1 Firewall: Enables w/ defaults DCHP: Enabled as DHCP Server Secondary Router #2 (Linksys WRT54GL) IP Address: 192.168.1.2 Firewall: Disabled as per DD-WRT instructions I'm looking for any configurations that I may have missed, or settings that may need to happen in order for this work.

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  • Detecting login credentials abuse

    Greetings. I am the webmaster for a small, growing industrial association. Soon, I will have to implement a restricted, members-only section for the website. The problem is that our organization membership both includes big companies as well as amateur “clubs” (it's a relatively new industry…). It is clear that those clubs will share the login ID they will use to log onto our website. The problem is to detect whether one of their members will share the login credentials with people who would not normally supposed to be accessing the website (there is no objection for such a club to have all it’s members get on the website). I have thought about logging along with each sign-on the IP address as well as the OS and the browser used; if the OS/Browser stays constant and there are no more than, say, 10 different IP addresses, the account is clearly used by very few different computers. But if there are 50 OS/Browser combination and 150 different IPs, the credentials have obviously been disseminated far, and there would be then cause for action, such as modifying the password. Of course, it is extremely annoying when your password is being unilaterally changed. So, for this problem, I thought about allowing the “clubs” to manage their own list of sub-accounts, and therefore if abuse is suspected, the user responsible would be easily pinned-down, and this “sub-member” alone would face the annoyance of a password change. Question: What potential problems would anyone see with such an approach?

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  • Nginx > Varnish > Gunicorn Error Too many Redirections

    - by kollo
    I have the following config: Nginx Varnish Gunicorn Django I want to cache 2 versions of same site (mobile & web) with Varnish. Gunicorn : WEB: gunicorn_django --bind 127.0.0.1:8181 MOBILE: gunicorn_django --bind 127.0.0.1:8182 Nginx: WEB: server { listen 80; server_name www.mysite.com; location / { proxy_pass http://127.0.0.1:8282; # pass to Varnish proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } MOBILE: server { listen 80; server_name m.mysite.com; location / { proxy_pass http://127.0.0.1:8282; # pass to Varnish proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } Varnish: default.vcl backend mobile_mysite { .host = "127.0.0.1"; .port = "8182"; } backend mysite { .host = "127.0.0.1"; .port = "8181"; } sub vcl_recv { if (req.http.host ~ "(?i)^(m.)?mysite.com$") { set req.http.host = "m.mysite.com"; set req.backend = mobile_mysite; }elsif (req.http.host ~ "(?i)^(www.)?mysite.com$") { set req.http.host = "mysite.com"; set req.backend = mysite; } if (req.url ~ ".*/static") { /* do not cache static content */ return (pass); } } The problem: On Nginx if I setup Mobile version with Varnish (port 8282) and let WEB version with Gunicorn( port 8181), MOBILE is cached by varnish, both WEB & MOBILE works but WEB is not cached. If I set the proxy_pass of WEB version to Varnish (port 8282) and restart Nginx I got an error when accessing web version (www.mysite.com) "Too many redirections" . I Think my problem come from the Varnish config file, as the site works well if I setup Nginx proxy_pass to Gunicorn ports (MOBILE & WEB).

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  • My URL has been identified as a phishing site

    - by user2118559
    Some months before ordered VPS at Ramnode According to tutorial (ZPanelCP on CentOS 6.4) http://www.zvps.co.uk/zpanelcp/centos-6 Installed CentOS and ZPanel) Today received email We are requesting that you secure and investigate the phishing website identified below. This URL has been identified as a phishing site and is currently involved in identity theft activities. URL: hxxp://111.11.111.111/www.connet-itunes.fr/iTunesConnect.woasp/ //IP is modified (not real) This site is being used to display false or spoofed content in an apparent effort to steal personal and financial information. This matter is URGENT. We believe that individuals are being falsely directed to this page and may be persuaded into divulging personal information to a criminal, if the content is not immediately disabled. Trying to understand. Some hacker hacked VPS, placed some file (?) with content that redirects to www.connet-itunes.fr/iTunesConnect.woasp? Then questions 1) how can I find the file? Where it may be located? url is URL: hxxp://111.11.111.111/ IP address, not domain name 2) What to do to protect VPS (with CentOS)? Any tutorial? Where may be security problem? I mean may be someone faced something similar....

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  • Apache httpd workers retry

    - by David Newcomb
    I have an Apache httpd web server running mod_proxy and mod_proxy_balancer. The whole of /somedir is sent to 2 worker machines which service the requests using the round robin scheduler. Each worker machine is running IIS but I don't think that is important. I can demonstrate the load balancer working by repeatedly requesting a single page which contains the IP address of the machine and can see that it switches from one to the other in a predictable round robin fashion. If I switch off one of the IIS servers and start requesting the same page then each page only contains the IP address of the machine that is up. However, if I start IIS and don't run my IIS application then /somedir returns 500 (as it should). I've added 500 to the failonstatus (Apache 2.4) so when it hits the error Apache places the worker machine into error state. Apache still returns the proxy error to the client though. How can I make Apache catch the proxy failure and retry using a different worker in the same way that a connection failure does. Update There is almost the same question asked in StackOverflow so joining them together. http://stackoverflow.com/questions/11083707/httpd-mod-proxy-balancer-failover-failonstatus-transperant-switching

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  • Home-made HTTP proxy server [closed]

    - by Martin Dimitrov
    I wanted to help a friend who has some restrictions at work to visit certain sites. Locally, on a Windows 7 machine, I run Apache server and decided to make it a proxy just for the IP of my friend. So I added the following to the configuration file: ProxyRequests On ProxyVia On <Proxy *> Order deny,allow Deny from all Allow from <his.ip> </Proxy> It worked fine. But shortly the proxy started to receive many requests of the form: 66.249.66.242 - - [22/Sep/2012:11:01:12 +0300] "GET /search?hl=en&lr=lang_en&as_qdr=all&ie=UTF-8&q=related:www.aarp.org/aarp-foundation/+allinurl:+foundation&tbo=1&sa=X&ei=BSy2T9L_L8PitQapwtHtBw&ved=0COQBEB8wPw HTTP/1.1" 403 208 66.249.71.36 - - [22/Sep/2012:11:01:49 +0300] "GET /search?hl=en&lr=lang_en&as_qdr=all&ie=UTF-8&q=related:www.aarp.org/aarp-foundation/+allinurl:+foundation&tbo=1&sa=X&ei=BOCzT-_WK8_0sgbki5XCDA&ved=0COABEB8wPg HTTP/1.1" 403 208 These are Google IPs. The requests are every 30 seconds or so. My friend is not at work today. In apache_error.log I see: [Sat Sep 22 11:09:20 2012] [error] [client 66.249.66.242] client denied by server configuration: C:/wamp/www/aclk [Sat Sep 22 11:09:47 2012] [error] [client 66.249.71.36] client denied by server configuration: C:/wamp/www/search What the hell is going on? Please, help.

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  • Bouncing between a 502 and 503 error

    - by Dave
    This has become an increasingly frustrating ordeal. I'm mostly a web developer, so forgive me if I am using improper terminology here. I have a client that had purchased a domain at JustHost. We built him a website and have it on our own server space. Now, I'm mostly used to dealing with godaddy and it is simple enough to manage dns records and point the A record to our server IP, where Apache on our end deals with the domains via name-based virtual hosts. But for some reason, in setting this up with JustHost, when attempting to go to the domain name, I either get a 502 or 503 error or "webpage does not exist". Now, I know that the basic functionality of the webpage must be working because I can access the the index etc straight through my servers www data (IE [server-ip]/website_folder). I was on the phone with technical support for over three hours yesterday with justhost and the best I could get was "That's really weird..." I've checked my logs and there doesn't seem to be anything coming through to my end. Does anybody have an idea of whats going on here? I would love for it to be a problem on my end, because justhost doesn't seem capable of helping further. Any help is greatly appreciated, thanks. I forgot to mention that we have several other sites up and running and completely accessible.

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  • Node js server not responding outside localhost centos

    - by David Martinez
    I'm running a basic express server from CentOS but for some reason it is not responding outside of localhost, I have tried everything I have found on google but nothing works so far. This is my express server: app.listen(3000,"0.0.0.0"); If I do curl http://localhost:3000/ in the server it works fine. If I curl to the ip of the server it doesn't work. I already changed my iptables num target prot opt source destination 1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 3 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3000 There is currently a apache server running on port 80 with no problems. I also tried setting a VirtualHost on apache but it didn't work either: <VirtualHost *:80> ServerName SubDOmain.MyDomain.com ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass / http://localhost:3000/ ProxyPassReverse / http://localhost:3000/ ProxyPreserveHost on </VirtualHost> There is another virtual host working fine that redirects to another DocumentRoot. I'm running Node on root for testing purpose, but the node application owner is another user. All folders have 705 and files 664 Edit: I stopped apache and run my node app on port 80 and it working fine, I could access node app from my ip and domain.

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  • Two DHCP interfaces asigned to two default gateways to OS

    - by user140600
    I have a Ubuntu box that has two networking interfaces (eth0 and wlan0). They are both configured for DHCP in /etc/network/interfaces, but they both assign a default gateway: /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto wlan0 iface wlan0 inet dhcp wireless-essid test Result of route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 172.16.1.1 0.0.0.0 UG 100 0 0 wlan0 0.0.0.0 10.0.0.1 0.0.0.0 UG 100 0 0 eth0 10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 172.16.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 How can I set up /etc/network/interfaces to have only one default gateway, on the interface I want? Worst case scenario, how can I at least control which one gets on top on the route -n command, each boot? Note: This box will travel a lot, and will be connected to different networks, so I don´t know in advance the IP addresses/ranges it will have. Sometimes the default gw interface will be eth0. Sometimes it will be wlan0 ... So, this needs to be kind of automatic ...

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  • maximum number of connections Squid

    - by Isaac
    I have a Squid proxy server that controls all internet traffic for my network. I need a way to stop users from downloading big files (say 50MB) in my network. I banned some famous ports (e.g. torrent) but some downloads are possible by HTTP port. Obviously I cannot ban port 80! A simple solution is limiting maxmimum number of the simultaneous connections for each IP (e.g. 3 connections). It's possible in Squid with this config: acl ACCOUNTSDEPT 192.168.5.0/24 acl limitusercon maxconn 3 http_access deny ACCOUNTSDEPT limitusercon But this solution has really bad impact in web browsing, because any smart browser get different parts of a website by several connections simultaneously to speedup web browsing. But if we have a maximum number of connections, the browsers will fail to get some parts and the website will be shown partially and some parts/images/frames will not be shown. So, can we limit maximum number of persist connections? I think this policy will works: Specify Maximum number of connections that is alive for 10 seconds But Number of simultaneous connections for every IP is unlimited But how can we implement this policy when Squid? With which config? UPDATE: artifex and Tom Newton offered using a bandwidth-limiting approach to fight against downloaders. But bandwidth-limiting in Squid has a shortcoming: It's static and cannot dynamically change. So a person has a limited bandwidth not matter how many people are using internet (maybe nobody!) Also, this solution cannot help to stop people from downloading. They still can download but in a lower speed. But if we find a way to terminate persist connections (or any connection that is alive more than a specific time), downloading big files will be almost impossible (always there is some way!)

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  • SSL Connection Error

    - by toffee.beanns
    I have purchased a comodo ssl cert and have submitted the Certificate Signing Request (CSR) generated by my server to the ssl management site. With the 3 files it returned me with, - AddTrustExternalCARoot.crt - PositiveSSLCA2.crt - www_mydomainname_com.crt I have uploaded them to my /etc/ssl/ssl-certs folder and have updated my virtual host in my sites-available and restarted accordingly. NameVirtualHost 107.167.120.195:80 #sample ip address NameVirtualHost 107.167.120.195:443 #sample ip address ......... #normal http virtual host (working well) <VirtualHost 107.167.120.195:443> ServerAdmin [email protected] ServerName mydomainname.com ServerAlias www.mydomainname.com DocumentRoot /var/www/mydomainname SSLEngine on SSLCertificateFile /etc/ssl/ssl-certs/www_mydomainname.com.crt SSLCertificateKeyFile /etc/ssl/ssl-certs/server.key SSLCertificateChainFile /etc/ssl/ssl-certs/PositiveSSLCA2.crt </VirtualHost> I have also enabled ran 'a2enmod ssl' and it's enabled. This is the error I get when I access the webpage https in chrome: SSL connection error Error code: ERR_SSL_PROTOCOL_ERROR Unable to make a secure connection to the server. This may be a problem with the server, or it may be requiring a client authentication certificate that you don't have. I have also checked out my apache log files and there seems to be an error saying that the Common Name (CN) is not the same as the server. RSA server certificate CommonName (CN) `www.mydomainname.com' does NOT match server name!? and Invalid method in request \x16\x03\x01 What should I do?

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  • My home box as my own host?

    - by Majid
    Hi all, I have a 512 kb/s DSL service at home. I do not have a static IP but I can get one if I pay some extra to my ISP. Now, if I get the static IP, can I make my home box act as my internet host? What else do I need? Thanks P.S. I know that if at all possible, the site I make available this way might be slow, that is alright, my question is if it is possible at all. Edit: I need this for very small traffic. I am a php developer and for my projects I am often asked to provide a demo. I currently use a free hosting for this purpose but it is down most of the time and support is non-existent. So I thought to set-up my home computer as my test server. With this please note that: I will only occasionally have 'visitors' and that will be one or possibly two visitors at any time. These demos, are to showcase functionality, so no big images are served and page views will normally generate under 100KB of traffic.

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