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• libvirt qemu/kvm migration problem

  - by Panda

  I am using kvm and libvirt on my Dell server. Now i am trying to migrate one virtual machine from a physical server to another. However, I failed everytime. In virsh on physicalServer1, I typed: virsh # migrate virtualmachine1 qemu+ssh://username@physicalServer2/system error: operation failed: migration to 'tcp:physicalServer2:49163' failed: migration failed Then I searched FAQ part on libvirt.org. It says: error: operation failed: migration to '...' failed: migration failed This is an error often encountered when trying to migrate with QEMU/KVM. This typically happens with plain migration, when the source VM cannot connect to the destination host. You will want to make sure your hosts are properly configured for migration (see the migration section of this FAQ) I managed to ssh physicalServer2 from a shell on virtualmachine1 so the above red part did not explain my failure. I also open ports on physicalServer2, iptables -L shows following information: Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:bootps ACCEPT tcp -- anywhere anywhere tcp dpt:bootps ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:bootps ACCEPT tcp -- anywhere anywhere tcp dpt:bootps ACCEPT tcp -- anywhere anywhere state NEW tcp dpts:49152:49215 Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.122.0/24 anywhere ACCEPT all -- anywhere anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable REJECT all -- anywhere anywhere reject-with icmp-port-unreachable ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.122.0/24 anywhere ACCEPT all -- anywhere anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable REJECT all -- anywhere anywhere reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT) target prot opt source destination The /var/log/libvirt/qemu/virtualmachine1.log on physicalServer2: 2011-05-06 13:37:30.708: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.14 -enable-kvm -m 2048 -smp 1,sockets=1,cores=1,threads=1 -name openjudge-test -uuid a8c704bc-a4f9-90db-3e57-40e60b00aac1 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/virtualmachine1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=readline -rtc base=utc -boot c -drive file=/media/nfs/virtualmachine1.img,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=20,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=00:16:36:8a:22 :a0,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -vnc 127.0.0.1:2 -vga cirrus -incoming tcp:0.0.0.0:49163 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/0 2011-05-06 13:37:30.915: shutting down The /var/log/libvirt/qemu/virtualmachine1.log on physicalServer1 is empty. Both physical servers are using Ubuntu 11.04. The libvirt and kvm used are installed by apt-get. The libvirt version is 0.8.8.

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• bash completion with aliases

  - by dstarh

  I have a bunch of bash completion scripts set up (mostly using bash-it and some manually setup). I also have a bunch of aliases setup for common tasks like gco for git checkout. Right now I can type git checkout d tab and develop is completed for me but when I type gco d tab it does not complete. I'm assuming this is because the completion script is completing on git and it fails to see gco. Is there a way to generically/programmatically get all of my completion scripts to work with my aliases? Not being able to complete when using the alias kind of defeats the purpose of the alias.

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• Postfix configuration - Uing virtual min but server is bouncing back my mail.

  - by brodiebrodie

  I have no experience in setting up postfix, and thought virtualmin minght do the legwork for me. Appears not. When I try to send mail to the domain (either [email protected] [email protected] or [email protected]) I get the following message returned This is the mail system at host dedq239.localdomain. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to <postmaster> If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <[email protected]> (expanded from <[email protected]>): User unknown in virtual alias table Final-Recipient: rfc822; [email protected] Original-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 Diagnostic-Code: X-Postfix; User unknown in virtual alias table How can I diagnose the problem here? It seems that the mail gets to my server but the server fails to locally deliver the message to the correct user. (This is a guess, truthfully I have no idea what is happening). I have checked my virtual alias table and it seems to be set up correctly (I can post if this would be helpful). Can anyone give me a clue as to the next step? Thanks alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 2 html_directory = no local_recipient_maps = $virtual_mailbox_maps mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain myorigin = $mydomain newaliases_path = /usr/bin/newaliases.postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES sample_directory = /usr/share/doc/postfix-2.3.3/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = permit_mynetworks reject_unauth_destination smtpd_sasl_auth_enable = yes soft_bounce = no unknown_local_recipient_reject_code = 550 virtual_alias_maps = hash:/etc/postfix/virtual My mail log file (the last entry) Sep 30 15:13:47 dedq239 postfix/cleanup[7237]: 207C6B18158: message-id=<[email protected]> Sep 30 15:13:47 dedq239 postfix/qmgr[7177]: 207C6B18158: from=<[email protected]>, size=1805, nrcpt=1 (queue active) Sep 30 15:13:47 dedq239 postfix/error[7238]: 207C6B18158: to=<[email protected]>, orig_to=<[email protected]>, relay=none, delay=0.64, delays=0.61/0.01/0/0.02, dsn=5.0.0, status=bounced (User unknown in virtual alias table) Sep 30 15:13:47 dedq239 postfix/cleanup[7237]: 8DC13B18169: message-id=<[email protected]> Sep 30 15:13:47 dedq239 postfix/qmgr[7177]: 8DC13B18169: from=<>, size=3691, nrcpt=1 (queue active) Sep 30 15:13:47 dedq239 postfix/bounce[7239]: 207C6B18158: sender non-delivery notification: 8DC13B18169 Sep 30 15:13:47 dedq239 postfix/qmgr[7177]: 207C6B18158: removed Sep 30 15:13:48 dedq239 postfix/smtp[7240]: 8DC13B18169: to=<[email protected]>, relay=gmail-smtp-in.l.google.com[209.85.216.55]:25, delay=1.3, delays=0.02/0.01/0.58/0.75, dsn=2.0.0, status=sent (250 2.0.0 OK 1254348828 36si15082901pxi.91) Sep 30 15:13:48 dedq239 postfix/qmgr[7177]: 8DC13B18169: removed Sep 30 15:14:17 dedq239 postfix/smtpd[7233]: disconnect from mail-bw0-f228.google.com[209.85.218.228] etc.aliases file below I have not touched this file - myvirtualdomain is a replacement for my real domain name # Aliases in this file will NOT be expanded in the header from # Mail, but WILL be visible over networks or from /bin/mail. # # >>>>>>>>>> The program "newaliases" must be run after # >> NOTE >> this file is updated for any changes to # >>>>>>>>>> show through to sendmail. # # Basic system aliases -- these MUST be present. mailer-daemon: postmaster postmaster: root # General redirections for pseudo accounts. bin: root daemon: root adm: root lp: root sync: root shutdown: root halt: root mail: root news: root uucp: root operator: root games: root gopher: root ftp: root nobody: root radiusd: root nut: root dbus: root vcsa: root canna: root wnn: root rpm: root nscd: root pcap: root apache: root webalizer: root dovecot: root fax: root quagga: root radvd: root pvm: root amanda: root privoxy: root ident: root named: root xfs: root gdm: root mailnull: root postgres: root sshd: root smmsp: root postfix: root netdump: root ldap: root squid: root ntp: root mysql: root desktop: root rpcuser: root rpc: root nfsnobody: root ingres: root system: root toor: root manager: root dumper: root abuse: root newsadm: news newsadmin: news usenet: news ftpadm: ftp ftpadmin: ftp ftp-adm: ftp ftp-admin: ftp www: webmaster webmaster: root noc: root security: root hostmaster: root info: postmaster marketing: postmaster sales: postmaster support: postmaster # trap decode to catch security attacks decode: root # Person who should get root's mail #root: marc abuse-myvirtualdomain.com: [email protected] My etc/postfix/virtual file is below - again myvirtualdomain is a replacement. I think this file was generated by Virtualmin and I have tried messing around with is with no success... This is the version without my changes. myunixusername@myvirtualdomain .com myunixusername myvirtualdomain .com myvirtualdomain.com [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected]

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• How do you serve php files located outside of the apache folders

  - by Lobe

  I've just installed phpMyAdmin at /usr/share/phpMyAdmin on a CentOS 5 machine running webmin / virtualmin. I have also added an alias to the apache config, being the following line: Alias /phpMyAdmin /usr/share/phpMyAdmin So that when I visit www.foobar.com/phpMyAdmin it serves phpMyAdmin. The problem is that the php is not being parsed, and is instead being spat out with the html which greatly diminishes the usefullness of what I have done. How can I set up apache or php or whatever to parse phpMyAdmin correctly. When googling this I wasn't able to get an understandable answer, however the most common related question was whether I am running mod_php or as CGI. php is running via CGI Thanks

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• How do I debug this FS error on a flash device?

  - by abc

  I have console access to an embedded linux device. This device has flash memory part of which is partitioned as a FAT filesystem. Its running linux-2.6.31. However I am seeing these errors on the console these days and the FAT file system becomes read only. 111109:154925 FAT: Filesystem error (dev loop0) 111109:154925 fat_get_cluster: invalid cluster chain (i_pos 0) 111109:154925 FAT: Filesystem error (dev loop0) 111109:154925 fat_get_cluster: invalid cluster chain (i_pos 0) I cannot understand why this happened? What is the root cause? And what is the fix? I would appreciate answers that can point me how to investigate the possible root cause of this issue on the device.

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• Open ports broken from internal network

  - by ksvi

  Quick summary: Forwarded port works from the outside world, but from the internal network using the external IP the connection is refused. This is a simplified situation to make the explanation easier: I have a computer that is running a service on port 12345. This computer has an internal IP 192.168.1.100 and is connected directly to a modem/router which has internal IP 192.168.1.1 and external (public, static) IP 1.2.3.4. (The router is TP-LINK TD-w8960N) I have set up port forwarding (virtual server) at port 12345 to go to port 12345 at 192.168.1.100. If I run telnet 192.168.1.100 12345 from the same computer everything works. But running telnet 1.2.3.4 12345 says connection refused. If I do this on another computer (on the same internal network, connected to the router) the same thing happens. This would seem like the port forwarding is not working. However... If I run a online port checking service on my external IP and the service port it says the port is open and I can see the remote server connecting and immediately closing connection. And using another computer that is connected to the internet using a mobile connection I can also use telnet 1.2.3.4 12345 and I get a working connection. So the port forwarding seems to be working, however using external IP from the internal network doesn't. I have no idea what can be causing this, since another setup very much like this (different router) works for me. I can access a service running on a server from inside the network both through the internal and external IP. Note: I know I could just use the internal IP inside of the network to access this service. But if I have a laptop that must be able to do this both from inside and outside it would be annoying to constantly switch between 1.2.3.4 and 192.168.1.100 in the software configuration. Router output: > iptables -t nat -L -n Chain PREROUTING (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 224.0.0.0/3 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:25 to:192.168.1.101 DNAT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:25 to:192.168.1.101 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:110 to:192.168.1.101 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:12345 to:192.168.1.102 DNAT udp -- 0.0.0.0/0 192.168.1.1 udp dpt:53 to:217.118.96.203 Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 192.168.1.0/24 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination

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• `which python` points to the python I want, but `python` runs the wrong version

  - by tramdas

  I want to use python24 provided by ports, so I've installed it, and python_select -s shows that the version I want is indeed selected. Running which python gives /opt/local/bin/python, and running /opt/local/bin/python gives me the version I want. However when I run python from the shell, I get the /usr/bin/python version instead. I don't have a python alias. Here's the situation in a nutshell: I believe the path is set up sensibly, and which python seems to confirm this. alias only returns 1 entry, which is something unrelated to this. Nevertheless, running python from the bash shell gives me the wrong python! I'm kind of stumped! What am I overlooking?

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• Extract cert and private key from JKS keystore to use it in Apache2 httpd

  - by momo

  I tried to find this but no luck. I created a JKS keystore and generated a CSR, then imported the signed cert and intermediate and root CA certs. Used this keystore on Tomcat without problems. Now I want to use the same cert for Apache2 http server on the same machine. I actually want to set up mod_jk to redirect /*.jsp and servlets paths to Tomcat and serve the static content and PHP from Apache2. I tried to convert JKS to PKCS12 with keytool to afterwards handle it with openssl with a command like this: keytool -importkeystore -srckeystore foo.jks \ -destkeystore foo.p12 \ -srcstoretype jks \ -deststoretype pkcs12 The problem is only the cert is exported but not the rest of the chain. I actually used this keystore on Apache and it complained about key and cert don't matching (not sure if it's related to the chain or not). Can anyone point me on the right direction? I am not a server guy and I am kinda lost with all this things :-(

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• Block IP Address including ICMP using UFW

  - by dr jimbob

  I prefer ufw to iptables for configuring my software firewall. After reading about this vulnerability also on askubuntu, I decided to block the fixed IP of the control server: 212.7.208.65. I don't think I'm vulnerable to this particular worm (and understand the IP could easily change), but wanted to answer this particular comment about how you would configure a firewall to block it. I planned on using: # sudo ufw deny to 212.7.208.65 # sudo ufw deny from 212.7.208.65 However as a test that the rules were working, I tried pinging after I setup the rules and saw that my default ufw settings let ICMP through even from an IP address set to REJECT or DENY. # ping 212.7.208.65 PING 212.7.208.65 (212.7.208.65) 56(84) bytes of data. 64 bytes from 212.7.208.65: icmp_seq=1 ttl=52 time=79.6 ms ^C --- 212.7.208.65 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 79.630/79.630/79.630/0.000 ms Now, I'm worried that my ICMP settings are too generous (conceivably this or a future worm could setup an ICMP tunnel to bypass my firewall rules). I believe this is the relevant part of my iptables rules is given below (and even though grep doesn't show it; the rules are associated with the chains shown): # sudo iptables -L -n | grep -E '(INPUT|user-input|before-input|icmp |212.7.208.65)' Chain INPUT (policy DROP) ufw-before-input all -- 0.0.0.0/0 0.0.0.0/0 Chain ufw-before-input (1 references) ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 3 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 4 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 11 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 12 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8 ufw-user-input all -- 0.0.0.0/0 0.0.0.0/0 Chain ufw-user-input (1 references) DROP all -- 0.0.0.0/0 212.7.208.65 DROP all -- 212.7.208.65 0.0.0.0/0 How should I go about making it so ufw blocks ICMP when I specifically attempt to block an IP address? My /etc/ufw/before.rules has in part: # ok icmp codes -A ufw-before-input -p icmp --icmp-type destination-unreachable -j ACCEPT -A ufw-before-input -p icmp --icmp-type source-quench -j ACCEPT -A ufw-before-input -p icmp --icmp-type time-exceeded -j ACCEPT -A ufw-before-input -p icmp --icmp-type parameter-problem -j ACCEPT -A ufw-before-input -p icmp --icmp-type echo-request -j ACCEPT I'm tried changing ACCEPT above to ufw-user-input: # ok icmp codes -A ufw-before-input -p icmp --icmp-type destination-unreachable -j ufw-user-input -A ufw-before-input -p icmp --icmp-type source-quench -j ufw-user-input -A ufw-before-input -p icmp --icmp-type time-exceeded -j ufw-user-input -A ufw-before-input -p icmp --icmp-type parameter-problem -j ufw-user-input -A ufw-before-input -p icmp --icmp-type echo-request -j ufw-user-input But ufw wouldn't restart after that. I'm not sure why (still troubleshooting) and also not sure if this is sensible? Will there be any negative effects (besides forcing the software firewall to force ICMP through a few more rules)?

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• Mikrotik and NAT/Routing issue

  - by arul

  I have basic NAT/Routing problem with Mikrotik RB750 that I've been unable to solve over the past days. From our ISP we have 26 IP addresses: 10.10.10.192/27, with 10.10.10.193 being the gateway and 10.10.10.194 the first available IP. What I need is that everything connected to ether2 gets a public IP from the DHCP server, and everything connected to ether3 gets a local IP from another DHCP (192.168.100.0/24). All clients should have internet access (I'll figure out bandwidth throttling later) and optimally just 'see' each other (all boxes are Win7, I guess this can ultimately be handled with VPN). Here is my setup: ether1 (10.10.10.194) is connected directly to ISP. 20 clients connected to ether2(10.10.10.195), and another 20 to ether3(10.10.10.196) (both through same 24 port switches). This is my setup, which doesn't work, all 20 clients from ether2 can access the internet, though all comm. seems to come from 10.10.10.194 (is this due to the masquerade on ether1?), and ether3 can't access the internet at all. I think that I need to masquerade ether3, and SNAT/DNAT or NETMAP ether2, but that doesn't work either, I guess that I need to somehow 'wire' both ether2+3 to ether1. Address list: # ADDRESS NETWORK INTERFACE 0 ;;; public 10.10.10.194/32 10.10.10.192 ether1-gateway 1 ;;; inner DHCP 192.168.100.0/24 192.168.100.0 ether3-private 2 ;;; public 10.10.10.195/32 10.10.10.192 ether2-pub 3 ;;; public 10.10.10.196/32 10.10.10.192 ether3-private NAT 0 ;;; ether3 nat chain=srcnat action=src-nat to-addresses=10.10.10.196 src-address=192.168.100.0/24 out-interface=ether3-private 1 ;;; ether3 nat chain=dstnat action=dst-nat to-addresses=192.168.100.0/24 in-interface=ether3-private 2 ;;; ether1 masquerade chain=srcnat action=masquerade to-addresses=10.10.10.194 out-interface=ether1-gateway Routes: # DST-ADDRESS PREF-SRC GATEWAY DISTANCE 0 A S 0.0.0.0/0 ether1-gateway 1 2 A S 10.10.10.192/27 10.10.10.195 ether2-pub 1 3 ADC 10.10.10.192/32 10.10.10.195 ether2-pub 0 ether1-gateway ether3-private 4 ADC 192.168.100.0/24 192.168.100.0 ether3-private 0 IP Pools: # NAME RANGES 0 public-pool 10.10.10.201-10.10.10.220 1 private-pool 192.168.100.2-192.168.100.254 DHCP configs: # NAME INTERFACE RELAY ADDRESS-POOL LEASE-TIME ADD-ARP 0 public-dhcp ether2-pub public-pool 3d 1 private-dhcp ether3-private private-pool 3d Thanks!

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• Why can't I use SSL certs imported via Server Admin in a custom Apache install?

  - by morgant

  I've got a couple of Mac OS X 10.6.8 Server web servers that run a custom AMP255 (Apache 2.x, MySQL 5.x, and PHP 5.x) stack installed using MacPorts. We've got a lot of Mac OS X Server servers and generally install SSL certs via Server Admin and they "just work" in the built-in services, however, these web servers have always had SSL certs installed in a non-standard location and used only for Apache. Long story short, we're trying to standardize this part of our administration and install certs via Server Admin, but have run into the following issue: when the certs are installed via Server Admin and referenced in our Apache conf files, Apache then prompts for a password upon trying to start. It does not seem to be any password we know, certainly not the admin or keychain passwords! We've added the _www user to the certusers (mainly just to ensure they have the proper access to the private key in /etc/certificates/). So, with the custom installed certs we have the following files (basically just pasted in from the company we purchase our certs from): -rw-r--r-- 1 root admin 1395 Apr 10 11:22 *.domain.tld.ca -rw-r--r-- 1 root admin 1656 Apr 10 11:21 *.domain.tld.cert -rw-r--r-- 1 root admin 1680 Apr 10 11:22 *.domain.tld.key And the following in the VirtualHost in /opt/local/apache2/conf/extra/httpd-ssl.conf: SSLCertificateFile /path/to/certs/*.domain.tld.cert SSLCertificateKeyFile /path/to/certs/*.domain.tld.key SSLCACertificateFile /path/to/certs/*.domain.tld.ca This setup functions normally. If we use the certs installed via Server Admin, which both Server Admin & Keychain Assistant show as valid, they're installed in /etc/certificates/ as follows: -rw-r--r-- 1 root wheel 1655 Apr 9 13:44 *.domain.tld.SOMELONGHASH.cert.pem -rw-r--r-- 1 root wheel 4266 Apr 9 13:44 *.domain.tld.SOMELONGHASH.chain.pem -rw-r----- 1 root certusers 3406 Apr 9 13:44 *.domain.tld.SOMELONGHASH.concat.pem -rw-r----- 1 root certusers 1751 Apr 9 13:44 *.domain.tld.SOMELONGHASH.key.pem And if we replace the aforementioned lines in our httpd-ssl.conf with the following: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCertificateChainFile /etc/certificates/*.domain.tld.SOMELONGHASH.chain.pem This prompts for the unknown password. I have also tried httpd-ssl.conf configured as follows: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCertificateChainFile /etc/certificates/*.domain.tld.SOMELONGHASH.concat.pem And as: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCACertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.chain.pem We've verified that the certificate is configured to allow all applications access it (in Keychain Assistant). A diff of the /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem & *.domain.tld.key files shows the former is encrypted and the latter is not, so we're assuming that Server Admin/Keychain Assistant is encrypting them for some reason. I know I can create an unencrypted key file as follows: sudo openssl rsa -in /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem -out /etc/certificates/*.domain.tld.SOMELONGHASH.key.no_password.pem But, I can't do that without entering the password. I thought maybe I could export an unencrypted copy of the key from Keychain Admin, but I'm not seeing such an option (not to mention that the .pem options are greyed out in all export options). Any assistance would be greatly appreciated.

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• Perl throwing 403 errors!

  - by Jamie

  When I first installed Perl in my WAMP setup, it worked fine. Then, after installing ASP.net, it began throwing 403 errors. Here's my ASP.net config: Load asp.net module LoadModule aspdotnet_module "modules/mod_aspdotnet.so" Set asp.net extensions AddHandler asp.net asp asax ascx ashx asmx aspx axd config cs csproj licx rem resources resx soap vb vbproj vsdisco webinfo # Mount application AspNetMount /asp "c:/users/jam/sites/asp" # ASP directory alias Alias /asp "c:/users/jam/sites/asp" # Directory setup <Directory "c:/users/jam/sites/asp"> # Options Options Indexes FollowSymLinks Includes +ExecCGI # Permissions Order allow,deny Allow from all # Default pages DirectoryIndex index.aspx index.htm </Directory> # aspnet_client files AliasMatch /aspnet_client/system_web/(\d+)_(\d+)_(\d+)_(\d+)/(.*) "C:/Windows/Microsoft.NET/Framework/v$1.$2.$3/ASP.NETClientFiles/$4" # Allow ASP.net scripts to be executed in the temp folder <Directory "C:/Windows/Microsoft.NET/Framework/v*/ASP.NETClientFiles"> Options FollowSymLinks Order allow,deny Allow from all </Directory> Also, what are the code tags for this site?

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• Can I find which script outputs which error?

  - by ibrahim

  There is a script which calls other scripts and they call others... I don't know exactly which scripts are called and how many of them. I only know that some of them are adding iptables rules and I get this error when I call root script. iptables: No chain/target/match by that name. iptables: No chain/target/match by that name. My problem is that I can not find which script outputs this errors. Is there any way or tool to learn that?

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• Installing Yaws server on Ubuntu 12.04 (Using a cloud service)

  - by Lee Torres

  I'm trying to get a Yaws web server working on a cloud service (Amazon AWS). I've compilled and installed a local copy on the server. My problem is that I can't get Yaws to run while running on either port 8000 or port 80. I have the following configuration in yaws.conf: port = 8000 listen = 0.0.0.0 docroot = /home/ubuntu/yaws/www/test dir_listings = true This produces the following successful launch/result: Eshell V5.8.5 (abort with ^G) =INFO REPORT==== 16-Sep-2012::17:21:06 === Yaws: Using config file /home/ubuntu/yaws.conf =INFO REPORT==== 16-Sep-2012::17:21:06 === Ctlfile : /home/ubuntu/.yaws/yaws/default/CTL =INFO REPORT==== 16-Sep-2012::17:21:06 === Yaws: Listening to 0.0.0.0:8000 for <3> virtual servers: - http://domU-12-31-39-0B-1A-F6:8000 under /home/ubuntu/yaws/www/trial - =INFO REPORT==== 16-Sep-2012::17:21:06 === Yaws: Listening to 0.0.0.0:4443 for <1> virtual servers: - When I try to access the the url (http://ec2-72-44-47-235.compute-1.amazonaws.com), it never connects. I've tried using paping to check if port 80 or 8000 is open(http://code.google.com/p/paping/) and I get a "Host can not be resolved" error, so obviously something isn't working. I've also tried setting the yaws.conf so its at Port 80, appearing like this: port = 8000 listen = 0.0.0.0 docroot = /home/ubuntu/yaws/www/test dir_listings = true and I get the following error: =ERROR REPORT==== 16-Sep-2012::17:24:47 === Yaws: Failed to listen 0.0.0.0:80 : {error,eacces} =ERROR REPORT==== 16-Sep-2012::17:24:47 === Can't listen to socket: {error,eacces} =ERROR REPORT==== 16-Sep-2012::17:24:47 === Top proc died, terminate gserv =ERROR REPORT==== 16-Sep-2012::17:24:47 === Top proc died, terminate gserv =INFO REPORT==== 16-Sep-2012::17:24:47 === application: yaws exited: {shutdown,{yaws_app,start,[normal,[]]}} type: permanent {"Kernel pid terminated",application_controller," {application_start_failure,yaws,>>>>>>{shutdown,>{yaws_app,start,[normal,[]]}}}"} I've also opened up the port 80 using iptables. Running sudo iptables -L gives this output: Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- ip-192-168-2-0.ec2.internal ip-192-168-2-16.ec2.internal tcp dpt:http ACCEPT tcp -- 0.0.0.0 anywhere tcp dpt:http ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp dpt:http ACCEPT tcp -- anywhere anywhere tcp dpt:http Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination In addition, I've gone to the security group panel in the Amazon AWS configuration area, and add ports 80, 8000, and 8080 to ip source 0.0.0.0 Please note: if you try to access the URL of the virtual server now, it likely won't connect because I'm not running currently running the yaws daemon. I've tested it when I've run yaws either through yaws or yaws -i Thanks for the patience

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• MAC and IP adress text-identicon as avatar

  - by rubo77

  I would like to create something like identicons but not with images but with a unique word for each IP-Adresses and MAC-Adresses. create an easy to remember alias for a mac address, that is unique and reverse lookupable, for example: IP 123.456.789.132 will result in an alias for that IP, that is connected to an existing word from a wordlist, that is unique. Background of this idea: this way we could identify our Routers in our Opennet in Hamburg easily in a graphical NodeGraph. Is there some site already, where I can convert MAC-Adresses to unique human readeable words?

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• Ports do not open after rules appended in iptables

  - by user2699451

  I have a server that I am trying to setup for OpenVPN. I have followed all the steps, but I see that when I try to connect to it in Windows, it doesn't allow me, it just hangs on connecting, so I did a nmap scan and I see that port 1194 is not open so naturally I append the rule to open 1194 with: iptables -A INPUT -i eth0 -p tcp --dport 1194 -j ACCEPT followed by service iptables save and service iptables restart which all executed successfully. Then I try again, but it doesn't work and another nmap scan says that port 1194 is closed. Here is the iptables configuration: # Generated by iptables-save v1.4.7 on Thu Oct 31 09:47:38 2013 *nat :PREROUTING ACCEPT [27410:3091993] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [5042:376160] -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -o eth0 -j MASQUERADE -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -j SNAT --to-source 41.185.26.238 -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE COMMIT # Completed on Thu Oct 31 09:47:38 2013 # Generated by iptables-save v1.4.7 on Thu Oct 31 09:47:38 2013 *filter :INPUT ACCEPT [23571:2869068] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [27558:3656524] :vl - [0:0] -A INPUT -p tcp -m tcp --dport 5252 -m comment --comment "SSH Secure" -j ACCEPT -A INPUT -p icmp -m icmp --icmp-type 8 -m state --state NEW,RELATED,ESTABLISHED -$ -A INPUT -i lo -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m tcp --dport 22 -m comment --comment "SSH" -j ACCEPT -A INPUT -p tcp -m tcp --dport 80 -m comment --comment "HTTP" -j ACCEPT -A INPUT -p tcp -m tcp --dport 8080 -m comment --comment "HTTPS" -j ACCEPT -A INPUT -p tcp -m tcp --dport 443 -m comment --comment "HTTP Encrypted" -j ACCEP$ -A INPUT -i eth0 -p tcp -m tcp --dport 1723 -j ACCEPT -A INPUT -i eth0 -p gre -j ACCEPT -A INPUT -p udp -m udp --dport 1194 -j ACCEPT -A FORWARD -i ppp+ -o eth0 -j ACCEPT -A FORWARD -i eth0 -o ppp+ -j ACCEPT -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 10.8.0.0/24 -j ACCEPT -A FORWARD -j REJECT --reject-with icmp-port-unreachable -A OUTPUT -p icmp -m icmp --icmp-type 0 -m state --state RELATED,ESTABLISHED -j A$ COMMIT # Completed on Thu Oct 31 09:47:38 2013 and my nmap scan from: localhost: nmap localhost Starting Nmap 5.51 ( http://nmap.org ) at 2013-10-31 09:53 SAST Nmap scan report for localhost (127.0.0.1) Host is up (0.000011s latency). Other addresses for localhost (not scanned): 127.0.0.1 Not shown: 996 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 443/tcp open https 1723/tcp open pptp Nmap done: 1 IP address (1 host up) scanned in 0.06 seconds remote pc: nmap [server ip] Starting Nmap 6.00 ( http://nmap.org ) at 2013-10-31 09:53 SAST Nmap scan report for rla04-nix1.wadns.net (41.185.26.238) Host is up (0.025s latency). Not shown: 858 filtered ports, 139 closed ports PORT STATE SERVICE 22/tcp open ssh 443/tcp open https 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 15.70 seconds So, I do not know what is causing this, any assistance will be appreciated! UPDATE AFTER FIRST ANSWER::: [root@RLA04-NIX1 ~]# iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT [root@RLA04-NIX1 ~]# iptables -A FORWARD -s 10.8.0.0/24 -j ACCEPT [root@RLA04-NIX1 ~]# iptables -A FORWARD -j REJECT [root@RLA04-NIX1 ~]# iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE [root@RLA04-NIX1 ~]# service iptables save iptables: Saving firewall rules to /etc/sysconfig/iptables:[ OK ] [root@RLA04-NIX1 ~]# service iptables restart iptables: Flushing firewall rules: [ OK ] iptables: Setting chains to policy ACCEPT: filter nat [ OK ] iptables: Unloading modules: [ OK ] iptables: Applying firewall rules: [ OK ] [root@RLA04-NIX1 ~]# lsof -i :1194 -bash: lsof: command not found iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:5252 /* SSH Secure */ ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8 state NEW,RELATED,ESTABLISHED ACCEPT 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 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:22 /* SSH */ ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 /* HTTP */ ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8080 /* HTTPS */ ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:443 /* HTTP Encrypted */ ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:1723 ACCEPT 47 -- 0.0.0.0/0 0.0.0.0/0 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:1194 Chain FORWARD (policy ACCEPT) 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 state RELATED,ESTABLISHED ACCEPT all -- 10.8.0.0/24 0.0.0.0/0 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT all -- 10.8.0.0/24 0.0.0.0/0 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 0 state RELATED,ESTABLISHED Chain vl (0 references) target prot opt source destination [root@RLA04-NIX1 ~]# nmap localhostt Starting Nmap 5.51 ( http://nmap.org ) at 2013-10-31 11:13 SAST remote pc nmap [server ip] Starting Nmap 6.00 ( http://nmap.org ) at 2013-10-31 11:11 SAST Nmap scan report for rla04-nix1.wadns.net (41.185.26.238) Host is up (0.020s latency). Not shown: 858 filtered ports, 139 closed ports PORT STATE SERVICE 22/tcp open ssh 443/tcp open https 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 4.18 seconds localhost nmap localhost Starting Nmap 5.51 ( http://nmap.org ) at 2013-10-31 11:13 SAST Nmap scan report for localhost (127.0.0.1) Host is up (0.000011s latency). Other addresses for localhost (not scanned): 127.0.0.1 Not shown: 996 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 443/tcp open https 1723/tcp open pptp Nmap done: 1 IP address (1 host up) scanned in 0.06 seconds UPDATE AFTER SCANNING UDP PORTS Sorry, I am noob, I am still learning, but here is the output for: nmap -sU [server ip] Starting Nmap 6.00 ( http://nmap.org ) at 2013-10-31 11:33 SAST Nmap scan report for [server address] ([server ip]) Host is up (0.021s latency). Not shown: 997 open|filtered ports PORT STATE SERVICE 53/udp closed domain 123/udp closed ntp 33459/udp closed unknown Nmap done: 1 IP address (1 host up) scanned in 8.57 seconds btw, no changes have been made since post started (except for iptables changes)

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• How to set robots.txt globally in nginx for all virtual hosts

  - by anup

  I am trying to set robots.txt for all virtual hosts under nginx http server. I was able to do it in Apache by putting the following in main httpd.conf: <Location "/robots.txt"> SetHandler None </Location> Alias /robots.txt /var/www/html/robots.txt I tried doing something similar with nginx by adding the lines given below (a) within nginx.conf and (b) as include conf.d/robots.conf location ^~ /robots.txt { alias /var/www/html/robots.txt; } I have tried with '=' and even put it in one of the virtual host to test it. Nothing seemed to work. What am I missing here? Is there another way to achieve this?

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• Apache in front of tomcat on Railo proxy with ajp

  - by user1468116

  I'm trying to setup apache in front of the tomcat embedded in railo. I have this settings: <VirtualHost *:80> DocumentRoot "/var/www/myapp" ServerName www.myapp.test ServerAlias www.myapp.test ProxyRequests Off ProxyPass /app ! <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPreserveHost On ProxyPassReverse / ajp://%{HTTP_HOST}:8009/ RewriteEngine On # If it's a CFML (*.cfc or *.cfm) request, just proxy it to Tomcat: RewriteRule ^(.+\.cf[cm])(/.*)?$ ajp://%{HTTP_HOST}:8009/$1$2 [P] My server.xml : <Host name="www.myapp.test" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Context path="" docBase="/var/www/myapp" /> <Alias>myapp.test</Alias> </Host> The index is loaded, but if I try to load some internal page I got: The proxy server could not handle the request GET /report/myreportname. Reason: DNS lookup failure for: localhost:8009report Could you help me?

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• iptables blocking ssh communication

  - by Michal Sapsa

  I'm using this script for iptables: #!/bin/sh echo "1" > /proc/sys/net/ipv4/ip_forward iptables -F iptables -X iptables -F -t nat iptables -X -t nat iptables -F -t filter iptables -X -t filter iptables -t filter -P FORWARD DROP iptables -t filter -A FORWARD -s 192.168.0.0/255.255.0.0 -d 0/0 -j ACCEPT iptables -t filter -A FORWARD -s 0/0 -d 192.168.0.0/255.255.0.0 -j ACCEPT iptables -t nat -A POSTROUTING -s 10.8.0.1/255.255.255.0 -j MASQUERADE iptables -A FORWARD -s 10.8.0.1/255.255.255.0 -j ACCEPT iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -d 0/0 -j MASQUERADE iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu iptables -t nat -A PREROUTING -i eth1 -p udp --dport 16161 -j DNAT --to 192.168.0.251:16161 iptables -t nat -A PREROUTING -i eth1 -p udp --sport 16161 -j DNAT --to 192.168.0.251:16161 #openvpn iptables -I INPUT -p tcp --dport 1194 -j ACCEPT iptables -I INPUT -p udp --dport 1194 -j ACCEPT I end up with some iptables rules that should work but don't work - probably because of me. # Generated by iptables-save v1.4.12 on Mon May 26 13:15:43 2014 *raw :PREROUTING ACCEPT [1657523:1357257330] :OUTPUT ACCEPT [36804:34834370] -A PREROUTING -p icmp -j TRACE -A PREROUTING -p tcp -j TRACE -A OUTPUT -p icmp -j TRACE -A OUTPUT -p tcp -j TRACE COMMIT # Completed on Mon May 26 13:15:43 2014 # Generated by iptables-save v1.4.12 on Mon May 26 13:15:43 2014 *nat :PREROUTING ACCEPT [5033:345623] :INPUT ACCEPT [154:34662] :OUTPUT ACCEPT [6:1968] :POSTROUTING ACCEPT [2:120] -A PREROUTING -i eth0 -p tcp -m tcp --dport 16161 -j DNAT --to-destination 192.168.0.251:22 -A PREROUTING -i eth1 -p tcp -m tcp --dport 16161 -j DNAT --to-destination 192.168.0.251:22 -A POSTROUTING -s 10.8.0.0/24 -j MASQUERADE -A POSTROUTING -s 192.168.0.0/24 -j MASQUERADE COMMIT # Completed on Mon May 26 13:15:44 2014 # Generated by iptables-save v1.4.12 on Mon May 26 13:15:44 2014 *filter :INPUT ACCEPT [548:69692] :FORWARD DROP [8:384] :OUTPUT ACCEPT [2120:1097479] -A INPUT -p udp -m udp --dport 1194 -j ACCEPT -A INPUT -p tcp -m tcp --dport 1194 -j ACCEPT -A FORWARD -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -A FORWARD -s 192.168.0.0/16 -j ACCEPT -A FORWARD -d 192.168.0.0/16 -j ACCEPT -A FORWARD -s 10.8.0.0/24 -j ACCEPT -A FORWARD -i eth0 -o eth1 -p tcp -m tcp --dport 22 -j ACCEPT -A FORWARD -i eth1 -o eth0 -p tcp -m tcp --dport 22 -j ACCEPT COMMIT TRACE at PREROUTEING AND OUTPUT are only for debuging this thing. When I ssh at public ip with port 16161 I don't get any message, only TimeOut so it looks like I don't get communication back to remote server. ETH0 is the world, ETH1 is LAN Any IPTABLES Masters willing to give a hand ? iptables -vL Chain INPUT (policy ACCEPT 20548 packets, 3198K bytes) pkts bytes target prot opt in out source destination 38822 7014K ACCEPT udp -- any any anywhere anywhere udp dpt:openvpn 0 0 ACCEPT tcp -- any any anywhere anywhere tcp dpt:openvpn Chain FORWARD (policy DROP 1129 packets, 64390 bytes) pkts bytes target prot opt in out source destination 214K 11M TCPMSS tcp -- any any anywhere anywhere tcpflags: SYN,RST/SYN TCPMSS clamp to PMTU 4565K 1090M ACCEPT all -- any any 192.168.0.0/16 anywhere 5916K 7315M ACCEPT all -- any any anywhere 192.168.0.0/16 0 0 ACCEPT all -- any any 10.8.0.0/24 anywhere 0 0 ACCEPT tcp -- any any anywhere 192.168.0.251 tcp dpt:16161 Chain OUTPUT (policy ACCEPT 59462 packets, 19M bytes) pkts bytes target prot opt in out source destination

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• Adding git branch to bash prompt on snow leopard

  - by crayment

  I am using this: $(__git_ps1 '(%s)') It works however it does not update when I change directories or checkout a new branch. I also have this alias: alias reload='. ~/.bash_profile' Sample run: user@machine:~/dev/rails$cd git_folder/ user@machine:~/dev/rails/git_folder$reload user@machine:~/dev/rails/git_folder(test)$git checkout master Switched to branch 'master' user@machine:~/dev/rails/git_folder(test)$reload user@machine:~/dev/rails/git_folder(master)$ As you can see it is being set correctly but only if I reload bash_profile. I have wasted way to much time on this. I am using bash on snow leopard. Please help!

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• Exchange 2010 forwarded emails by external servers being blocked

  - by MadBoy

  Our users were getting spam messages from their own accounts (same domain/login for example [email protected] to [email protected]). This is preety standard trick and I decided to block it so that anonymous users can't send emails as @company.com. This brought some problems on us like our printers not being able to send emails etc but I solved it with secondary smtp receiver on different port with ip restrictions. However it seems to affect forwarding by some e-mail servers as well: Hi. This is the qmail-send program at home.pl. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. : 89.14.1.26 failed after I sent the message. Remote host said: 550 5.7.1 Client does not have permissions to send as this sender --- Below this line is a copy of the message. Return-Path: Return-Path: Received: from mail.company.com [89.14.1.26] (HELO mail.company.com) by company.ho.pl [79.93.31.43] with SMTP (IdeaSmtpServer v0.70) id 488fcb01c2f069d9; Tue, 3 Jan 2012 09:46:55 +0100 Received: from EXCHANGE1.COMPANY ([fe80::d425:135f:b655:1223]) by EXCHANGE2.COMPANY ([fe80::193f:51ac:9316:cb27%14]) with mapi id 14.01.0355.002; Tue, 3 Jan 2012 09:46:55 +0100 From: =?iso-8859-2?Q?MadBoy?= So basically server forwards it without affecting email address it was send with and our servers treat it like spam. I used this command to block things: Get-ReceiveConnector "DEFAULT Exchange2" | Get-ADPermission -user "NT AUTHORITY\Anonymous Logon" | where {$_.ExtendedRights -like "ms-exch-smtp-accept-authoritative-domain-sender"} | Remove-ADPermission Is there anyway I can keep on receiveing things like forwards but be able to block things (except some dedicated antispam solution - this will be added later). Also how do I "reassing" back the permissions that was removed? EDIT to clarify: I have a domain domain.com configured as Authorative. Couple of our users are on project for differentcompany.com which is not on our servers or anywhere close. Now when they send an email from their accounts lets say [email protected] to [email protected] that special alias is configured so that any email it receives it forwards to multiple people including a group alias at our domain [email protected] and that group alias puts the email in users mailboxes. After the email is forwarded by [email protected] and it reaches our server it is denied because the forwarding done by the "external" server doesn't affect user information so for the server it seems like the [email protected] was actually sender and it treats it as spam and denies it. The server at differentcompany.com just adds itself to the header that it passed thru it and doesn't modify sender at anyway (seems like this is how forwarding works). Although I could probably allow this particular server as allowed to relay but this would seem to affect more servers/users as anyone can setup forwarding on their email back to our domain...

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• FTP not listing files behind firewall (setsockopt (ignored): Permission denied)

  - by KennyDs

  We are developing a Magento application that has a module that works with FTP. Today we deployed this on the testing environment which is setup in the following way: Gateway server which has the following iptables rules: # iptables -L -n -v Chain INPUT (policy ACCEPT 2 packets, 130 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 165 13720 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED Chain FORWARD (policy ACCEPT 7 packets, 606 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- eth1 eth0 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 15 965 ACCEPT all -- eth0 eth1 0.0.0.0/0 0.0.0.0/0 0 0 REJECT all -- eth1 eth1 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT 126 packets, 31690 bytes) pkts bytes target prot opt in out source destination These are set at runtime via the following bash script: #!/bin/sh PATH=/usr/sbin:/sbin:/bin:/usr/bin # # delete all existing rules. # iptables -F iptables -t nat -F iptables -t mangle -F iptables -X # Always accept loopback traffic iptables -A INPUT -i lo -j ACCEPT # Allow established connections, and those not coming from the outside iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A FORWARD -i eth1 -o eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT # Allow outgoing connections from the LAN side. iptables -A FORWARD -i eth0 -o eth1 -j ACCEPT # Masquerade. iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE # Don't forward from the outside to the inside. iptables -A FORWARD -i eth1 -o eth1 -j REJECT # Enable routing. echo 1 > /proc/sys/net/ipv4/ip_forward The gateway server is connected to the WAN via eth1 and is connected to the internal network via eth0. One of the servers from eth1 has the following problem when trying to list files over ftp: $ ftp -vd myftpserver.com Connected to myftpserver.com 220 Welcome to MY FTP Server ftp: setsockopt: Bad file descriptor Name (myftpserver.com:magento): XXXXXXXX ---> USER XXXXXXXX 331 User XXXXXXXX, password please Password: ---> PASS XXXX 230 Password Ok, User logged in ---> SYST 215 UNIX Type: L8 Remote system type is UNIX. Using binary mode to transfer files. ftp> ls ftp: setsockopt (ignored): Permission denied ---> PORT 192,168,19,15,135,75 421 Service not available, remote server has closed connection When I try listing the files in passive mode, same result. When I run the same command on the gateway server, everything works fine so I believe that the issue is happening because of the iptables rules not forwarding properly. Does anyone have an idea which rule I need to add to make this work?

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• Apache AliasMatch and DirectoryMatch not working?

  - by Alex

  I have the following config - please notice the Alias and Directory equivalent -- uncommented they work as expected but the dynamic/regex based versions don't - any ideas??? <VirtualHost *:80> ServerName temp.dev.local ServerAlias temp.dev.local DocumentRoot "C:\wamp\www\temp\public" <Directory "C:\wamp\www\temp\public"> AllowOverride all Order Allow,Deny Allow from all </Directory> # Alias /private/application/core/page/assets/images/ "C:/wamp/www/temp/private/application/core/page/assets/images/" # <Directory "C:/wamp/www/temp/private/application/core/page/assets/images/"> AliasMatch ^/private/application/(.*)/(.*)/assets/images/ /private/application/$1/$2/assets/images/ <DirectoryMatch "^/private/application/(.*)/(.*)/assets/images/"> Options Indexes FollowSymlinks MultiViews Includes AllowOverride None Order allow,deny Allow from all </DirectoryMatch> </VirtualHost>

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• iptables & allowed port refusing connection

  - by marfarma

  Can you see what I'm doing wrong? On Ubuntu Server 9.1, I'm attempting to allow traffic on port 1143 for a non-privileged IMAP host. Connection is refused when testing with telnet example.com 1143 but connection is allowed testing with telnet example.com 80 from my pc to remote internet hosted server. Both rules appear identical and are located near each other with no rules rejecting connections intervening in the rules file. I can't figure it out. iptables -L returns this: Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere REJECT all -- anywhere 127.0.0.0/8 reject-with icmp-port-unreachable ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp dpt:www ACCEPT tcp -- anywhere anywhere tcp dpt:https ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt ACCEPT tcp -- anywhere anywhere tcp dpt:7070 ACCEPT tcp -- anywhere anywhere tcp dpt:1143 ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh ACCEPT icmp -- anywhere anywhere icmp echo-request LOG all -- anywhere anywhere limit: avg 5/min burst 5 LOG level debug prefix `iptables denied: ' REJECT all -- anywhere anywhere reject-with icmp-port-unreachable Chain FORWARD (policy ACCEPT) target prot opt source destination REJECT all -- anywhere anywhere reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere and my rules file contains this: # Generated by iptables-save v1.4.4 on Wed May 26 19:08:34 2010 *nat :PREROUTING ACCEPT [3556:217296] :POSTROUTING ACCEPT [6909:414847] :OUTPUT ACCEPT [6909:414847] -A PREROUTING -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 8080 -A PREROUTING -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 8080 COMMIT # Completed on Wed May 26 19:08:34 2010 # Generated by iptables-save v1.4.4 on Wed May 26 19:08:34 2010 *filter :INPUT ACCEPT [1:52] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [1:212] -A INPUT -i lo -j ACCEPT -A INPUT -d 127.0.0.0/8 ! -i lo -j REJECT --reject-with icmp-port-unreachable -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -p tcp -m tcp --dport 8080 -j ACCEPT -A INPUT -p tcp -m tcp --dport 7070 -j ACCEPT -A INPUT -p tcp -m tcp --dport 1143 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 -A INPUT -j REJECT --reject-with icmp-port-unreachable -A FORWARD -j REJECT --reject-with icmp-port-unreachable -A OUTPUT -j ACCEPT COMMIT # Completed on Wed May 26 19:08:34 2010

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• Why does the EFI shell not detect my Windows DVD?

  - by Oliver Salzburg

  I'm currently looking into (U)EFI for the first time and am already really confused. I insert the Windows Server 2008 R2 Enterprise disc into the DVD-ROM and boot into the EFI shell. The shell will automatically list all detected devices, which are: blk0 :CDRom - Alias (null) Acpi(PNP0A03,0)/Pci(1F|2)/Ata(Primary,Master)/CDROM(Entry0) blk1 :BlockDevice - Alias (null) Acpi(PNP0A03,0)/Pci(1F|2)/Ata(Primary,Master) To my understanding, it should have already detected the filesystem on blk0 and should have mounted it as fs0. Why is that not happening? If I insert a USB drive, it gets mounted just fine. The board is an Intel S5520HC in case that makes a difference.

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