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Articles indexed in May 2014

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My server cant resolve domains?

- by Nuker

I am on a VPS that is pretty much unmanaged so it means im on my own. I did my best to configure it so i can host my own site for other people to see it online but seems like i have network problems because in the last days many of my users report they cant enter my site from my domain and seems like Google and Facebook cant either (this never happened before). Its weird because i can enter my site without problems and so many other people as well. But then i tried to make a php include and i get this error: Warning: include(): php_network_getaddresses: getaddrinfo failed: Name or service not known in I was told that seems like my server cant resolve domains. The includes work if i use IPs instead of domains. So it means i have a DNS problem or something? What can i do to fix it? Im on a Linux 2.6.32-431.11.2.el6.x86_64 on x86_64 CentOS Linux 6.5 Thank you. EDIT: i have this on my resolv.conf # Generated by NetworkManager # No nameservers found; try putting DNS servers into your # ifcfg files in /etc/sysconfig/network-scripts like so: # # DNS1=xxx.xxx.xxx.xxx # DNS2=xxx.xxx.xxx.xxx # DOMAIN=lab.foo.com bar.foo.com nameserver 8.8.8.8 nameserver 8.8.4.4

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Connection to SQL Server 2008 R2 Database Server is SLOW

- by AbeP

The database server is a VM running SQL Server 2008 R2 on top of Windows Server 2012, 24GB RAM allocated and 2TB of disk space. Overall, the database connections are very slow and one thing that stands out is that the connection to the database server via SSMS takes 5-10 seconds. On other much less powerful servers, it takes 1-2 seconds. The VM is technically way more powerful than other machines, but the connection to the server is too slow. So, my guess is the issue is network related, but any clues on where I should be looking? Thanks!

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Windows 2008 R2 IPsec encryption in tunnel mode, hosts in same subnet

- by fission

In Windows there appear to be two ways to set up IPsec: The IP Security Policy Management MMC snap-in (part of secpol.msc, introduced in Windows 2000). The Windows Firewall with Advanced Security MMC snap-in (wf.msc, introduced in Windows 2008/Vista). My question concerns #2 – I already figured out what I need to know for #1. (But I want to use the ‘new’ snap-in for its improved encryption capabilities.) I have two Windows Server 2008 R2 computers in the same domain (domain members), on the same subnet: server2 172.16.11.20 server3 172.16.11.30 My goal is to encrypt all communication between these two machines using IPsec in tunnel mode, so that the protocol stack is: IP ESP IP …etc. First, on each computer, I created a Connection Security Rule: Endpoint 1: (local IP address), eg 172.16.11.20 for server2 Endpoint 2: (remote IP address), eg 172.16.11.30 Protocol: Any Authentication: Require inbound and outbound, Computer (Kerberos V5) IPsec tunnel: Exempt IPsec protected connections Local tunnel endpoint: Any Remote tunnel endpoint: (remote IP address), eg 172.16.11.30 At this point, I can ping each machine, and Wireshark shows me the protocol stack; however, nothing is encrypted (which is expected at this point). I know that it's unencrypted because Wireshark can decode it (using the setting Attempt to detect/decode NULL encrypted ESP payloads) and the Monitor Security Associations Quick Mode display shows ESP Encryption: None. Then on each server, I created Inbound and Outbound Rules: Protocol: Any Local IP addresses: (local IP address), eg 172.16.11.20 Remote IP addresses: (remote IP address), eg 172.16.11.30 Action: Allow the connection if it is secure Require the connections to be encrypted The problem: Though I create the Inbound and Outbound Rules on each server to enable encryption, the data is still going over the wire (wrapped in ESP) with NULL encryption. (You can see this in Wireshark.) When the arrives at the receiving end, it's rejected (presumably because it's unencrypted). [And, disabling the Inbound rule on the receiving end causes it to lock up and/or bluescreen – fun!] The Windows Firewall log says, eg: 2014-05-30 22:26:28 DROP ICMP 172.16.11.20 172.16.11.30 - - 60 - - - - 8 0 - RECEIVE I've tried varying a few things: In the Rules, setting the local IP address to Any Toggling the Exempt IPsec protected connections setting Disabling rules (eg disabling one or both sets of Inbound or Outbound rules) Changing the protocol (eg to just TCP) But realistically there aren't that many knobs to turn. Does anyone have any ideas? Has anyone tried to set up tunnel mode between two hosts using Windows Firewall? I've successfully got it set up in transport mode (ie no tunnel) using exactly the same set of rules, so I'm a bit surprised that it didn't Just Work™ with the tunnel added.

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configure HTTPS server on a cisco router

- by Sara

For the past week I was trying to configure an HTTPS server on a cisco 2900 router, I've used the following commands and assigned a username and password to privilege 15 however, when Im trying to access a given ip it requires a username and password however when I insert the username and password I configured it does not allow me to enter and i'm not sure where the problem is. Router(config)# ip http secure-server Router(config)# ip http authentication local These were the commands i used for the https server and also I used the following to assign the username and password Router(config)#username name privilege 15 secret 0 password where 'name' and 'password' represent the username and password respectively I'm trying to access the 192.168.14.1 interface on the router and the username and password i created are not authorized to enter (I got the commands from a cisco router manual)

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Why can blocked IPs get through my iptables? What's wrong with this configuration?

- by NeedSomeHelp

(Why can/How are) blocked IPs (get/getting) through my iptables? Hello and thanks for your consideration... I have configured iptables and included (below) output from the command "iptables --line-numbers -n -L" yet IP addresses (like 31.41.219.180) from IP blocks I have already blocked are getting through. Please take a look and share any input you may have. Thank you. P.S. The initial ACCEPT IP addresses are for CloudFlare. . Chain INPUT (policy DROP 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 32267 14M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 0 0 REJECT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp flags:!0x17/0x02 state NEW reject-with tcp-reset 3 149 8570 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 state INVALID 4 434 25606 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 5 0 0 ACCEPT udp -- * * 103.21.244.0/22 0.0.0.0/0 6 0 0 ACCEPT udp -- * * 103.22.200.0/22 0.0.0.0/0 7 0 0 ACCEPT udp -- * * 103.31.4.0/22 0.0.0.0/0 8 0 0 ACCEPT udp -- * * 104.16.0.0/12 0.0.0.0/0 9 0 0 ACCEPT udp -- * * 108.162.192.0/18 0.0.0.0/0 10 0 0 ACCEPT udp -- * * 141.101.64.0/18 0.0.0.0/0 11 0 0 ACCEPT udp -- * * 162.158.0.0/15 0.0.0.0/0 12 0 0 ACCEPT udp -- * * 173.245.48.0/20 0.0.0.0/0 13 0 0 ACCEPT udp -- * * 188.114.96.0/20 0.0.0.0/0 14 0 0 ACCEPT udp -- * * 190.93.240.0/20 0.0.0.0/0 15 0 0 ACCEPT udp -- * * 197.234.240.0/22 0.0.0.0/0 16 0 0 ACCEPT udp -- * * 198.41.128.0/17 0.0.0.0/0 17 0 0 ACCEPT udp -- * * 199.27.128.0/21 0.0.0.0/0 18 0 0 ACCEPT tcp -- * * 103.21.244.0/22 0.0.0.0/0 19 9 468 ACCEPT tcp -- * * 103.22.200.0/22 0.0.0.0/0 20 0 0 ACCEPT tcp -- * * 103.31.4.0/22 0.0.0.0/0 21 0 0 ACCEPT tcp -- * * 104.16.0.0/12 0.0.0.0/0 22 858 44616 ACCEPT tcp -- * * 108.162.192.0/18 0.0.0.0/0 23 376 19552 ACCEPT tcp -- * * 141.101.64.0/18 0.0.0.0/0 24 0 0 ACCEPT tcp -- * * 162.158.0.0/15 0.0.0.0/0 25 257 13364 ACCEPT tcp -- * * 173.245.48.0/20 0.0.0.0/0 26 0 0 ACCEPT tcp -- * * 188.114.96.0/20 0.0.0.0/0 27 0 0 ACCEPT tcp -- * * 190.93.240.0/20 0.0.0.0/0 28 0 0 ACCEPT tcp -- * * 197.234.240.0/22 0.0.0.0/0 29 0 0 ACCEPT tcp -- * * 198.41.128.0/17 0.0.0.0/0 30 92 4784 ACCEPT tcp -- * * 199.27.128.0/21 0.0.0.0/0 31 0 0 DROP tcp -- * * 1.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 32 0 0 DROP tcp -- * * 101.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 33 0 0 DROP tcp -- * * 102.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 34 0 0 DROP tcp -- * * 103.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 35 18 1080 DROP tcp -- * * 109.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 36 0 0 DROP tcp -- * * 112.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 37 12 656 DROP tcp -- * * 113.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 38 0 0 DROP tcp -- * * 114.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 39 0 0 DROP tcp -- * * 115.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 40 8 352 DROP tcp -- * * 116.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 41 0 0 DROP tcp -- * * 117.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 42 0 0 DROP tcp -- * * 118.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 43 2 120 DROP tcp -- * * 119.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 44 0 0 DROP tcp -- * * 120.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 45 0 0 DROP tcp -- * * 121.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 46 4 160 DROP tcp -- * * 122.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 47 4 240 DROP tcp -- * * 123.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 48 0 0 DROP tcp -- * * 125.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 49 0 0 DROP tcp -- * * 134.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 50 0 0 DROP tcp -- * * 146.185.0.0/16 0.0.0.0/0 tcp dpts:1:50000 51 6 360 DROP tcp -- * * 148.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 52 0 0 DROP tcp -- * * 151.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 53 0 0 DROP tcp -- * * 175.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 54 0 0 DROP tcp -- * * 176.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 55 0 0 DROP tcp -- * * 177.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 56 46 2696 DROP tcp -- * * 178.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 57 0 0 DROP tcp -- * * 179.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 58 4 224 DROP tcp -- * * 180.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 59 0 0 DROP tcp -- * * 181.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 60 0 0 DROP tcp -- * * 182.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 61 34 2040 DROP tcp -- * * 183.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 62 0 0 DROP tcp -- * * 185.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 63 0 0 DROP tcp -- * * 186.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 64 0 0 DROP tcp -- * * 187.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 65 18 912 DROP tcp -- * * 188.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 66 0 0 DROP tcp -- * * 189.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 67 0 0 DROP tcp -- * * 190.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 68 2 120 DROP tcp -- * * 192.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 69 0 0 DROP tcp -- * * 196.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 70 0 0 DROP tcp -- * * 197.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 71 5 300 DROP tcp -- * * 198.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 72 0 0 DROP tcp -- * * 2.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 73 0 0 DROP tcp -- * * 200.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 74 0 0 DROP tcp -- * * 201.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 75 6 360 DROP tcp -- * * 202.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 76 0 0 DROP tcp -- * * 203.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 77 4 160 DROP tcp -- * * 210.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 78 0 0 DROP tcp -- * * 211.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 79 2 96 DROP tcp -- * * 212.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 80 4 240 DROP tcp -- * * 213.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 81 0 0 DROP tcp -- * * 214.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 82 0 0 DROP tcp -- * * 215.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 83 0 0 DROP tcp -- * * 216.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 84 0 0 DROP tcp -- * * 217.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 85 4 172 DROP tcp -- * * 218.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 86 12 576 DROP tcp -- * * 219.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 87 7 372 DROP tcp -- * * 220.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 88 0 0 DROP tcp -- * * 222.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 89 0 0 DROP tcp -- * * 27.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 90 12 608 DROP tcp -- * * 31.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 91 11 528 DROP tcp -- * * 37.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 92 0 0 DROP tcp -- * * 41.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 93 0 0 DROP tcp -- * * 42.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 94 0 0 DROP tcp -- * * 43.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 95 8 480 DROP tcp -- * * 46.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 96 0 0 DROP tcp -- * * 49.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 97 6 360 DROP tcp -- * * 5.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 98 0 0 DROP tcp -- * * 58.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 99 0 0 DROP tcp -- * * 60.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 100 4 160 DROP tcp -- * * 61.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 101 32 1848 DROP tcp -- * * 62.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 102 0 0 DROP tcp -- * * 63.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 103 20 1200 DROP tcp -- * * 64.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 104 0 0 DROP tcp -- * * 65.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 105 266 15960 DROP tcp -- * * 66.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 106 3 180 DROP tcp -- * * 69.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 107 5 272 DROP tcp -- * * 72.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 108 0 0 DROP tcp -- * * 78.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 109 0 0 DROP tcp -- * * 81.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 110 3 180 DROP tcp -- * * 82.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 111 0 0 DROP tcp -- * * 83.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 112 8 384 DROP tcp -- * * 84.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 113 0 0 DROP tcp -- * * 85.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 114 0 0 DROP tcp -- * * 86.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 115 6 360 DROP tcp -- * * 87.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 116 7 408 DROP tcp -- * * 88.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 117 0 0 DROP tcp -- * * 89.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 118 0 0 DROP tcp -- * * 90.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 119 0 0 DROP tcp -- * * 91.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 120 3 152 DROP tcp -- * * 92.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 121 20 992 DROP tcp -- * * 93.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 122 9 512 DROP tcp -- * * 94.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 123 5 272 DROP tcp -- * * 95.0.0.0/8 0.0.0.0/0 tcp dpts:1:50000 124 0 0 DROP udp -- * * 1.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 125 0 0 DROP udp -- * * 101.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 126 0 0 DROP udp -- * * 102.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 127 0 0 DROP udp -- * * 103.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 128 0 0 DROP udp -- * * 109.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 129 0 0 DROP udp -- * * 112.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 130 0 0 DROP udp -- * * 113.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 131 0 0 DROP udp -- * * 114.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 132 1 112 DROP udp -- * * 115.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 133 0 0 DROP udp -- * * 116.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 134 0 0 DROP udp -- * * 117.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 135 0 0 DROP udp -- * * 118.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 136 0 0 DROP udp -- * * 119.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 137 0 0 DROP udp -- * * 120.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 138 0 0 DROP udp -- * * 121.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 139 0 0 DROP udp -- * * 122.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 140 0 0 DROP udp -- * * 123.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 141 0 0 DROP udp -- * * 125.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 142 0 0 DROP udp -- * * 134.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 143 0 0 DROP udp -- * * 146.185.0.0/16 0.0.0.0/0 udp dpts:1:50000 144 0 0 DROP udp -- * * 148.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 145 0 0 DROP udp -- * * 151.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 146 0 0 DROP udp -- * * 175.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 147 0 0 DROP udp -- * * 176.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 148 1 70 DROP udp -- * * 177.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 149 0 0 DROP udp -- * * 178.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 150 0 0 DROP udp -- * * 179.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 151 0 0 DROP udp -- * * 180.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 152 0 0 DROP udp -- * * 181.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 153 0 0 DROP udp -- * * 182.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 154 0 0 DROP udp -- * * 183.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 155 0 0 DROP udp -- * * 185.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 156 1 74 DROP udp -- * * 186.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 157 0 0 DROP udp -- * * 187.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 158 0 0 DROP udp -- * * 188.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 159 0 0 DROP udp -- * * 189.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 160 0 0 DROP udp -- * * 190.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 161 0 0 DROP udp -- * * 192.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 162 0 0 DROP udp -- * * 196.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 163 0 0 DROP udp -- * * 197.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 164 0 0 DROP udp -- * * 198.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 165 0 0 DROP udp -- * * 2.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 166 0 0 DROP udp -- * * 200.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 167 0 0 DROP udp -- * * 201.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 168 0 0 DROP udp -- * * 202.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 169 0 0 DROP udp -- * * 203.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 170 0 0 DROP udp -- * * 210.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 171 0 0 DROP udp -- * * 211.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 172 0 0 DROP udp -- * * 212.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 173 0 0 DROP udp -- * * 213.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 174 0 0 DROP udp -- * * 214.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 175 0 0 DROP udp -- * * 215.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 176 0 0 DROP udp -- * * 216.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 177 0 0 DROP udp -- * * 217.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 178 1 80 DROP udp -- * * 218.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 179 0 0 DROP udp -- * * 219.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 180 0 0 DROP udp -- * * 220.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 181 0 0 DROP udp -- * * 222.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 182 0 0 DROP udp -- * * 27.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 183 0 0 DROP udp -- * * 31.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 184 0 0 DROP udp -- * * 37.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 185 0 0 DROP udp -- * * 41.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 186 0 0 DROP udp -- * * 42.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 187 0 0 DROP udp -- * * 43.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 188 0 0 DROP udp -- * * 46.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 189 0 0 DROP udp -- * * 49.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 190 0 0 DROP udp -- * * 5.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 191 0 0 DROP udp -- * * 58.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 192 0 0 DROP udp -- * * 60.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 193 0 0 DROP udp -- * * 61.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 194 0 0 DROP udp -- * * 62.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 195 0 0 DROP udp -- * * 63.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 196 0 0 DROP udp -- * * 64.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 197 0 0 DROP udp -- * * 65.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 198 0 0 DROP udp -- * * 66.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 199 0 0 DROP udp -- * * 69.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 200 0 0 DROP udp -- * * 72.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 201 0 0 DROP udp -- * * 78.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 202 0 0 DROP udp -- * * 81.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 203 0 0 DROP udp -- * * 82.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 204 0 0 DROP udp -- * * 83.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 205 0 0 DROP udp -- * * 84.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 206 0 0 DROP udp -- * * 85.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 207 0 0 DROP udp -- * * 86.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 208 0 0 DROP udp -- * * 87.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 209 0 0 DROP udp -- * * 88.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 210 0 0 DROP udp -- * * 89.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 211 0 0 DROP udp -- * * 90.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 212 0 0 DROP udp -- * * 91.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 213 0 0 DROP udp -- * * 92.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 214 2 72 DROP udp -- * * 93.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 215 0 0 DROP udp -- * * 94.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 216 0 0 DROP udp -- * * 95.0.0.0/8 0.0.0.0/0 udp dpts:1:50000 217 0 0 DROP tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:12443 218 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:11443 219 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:11444 220 23 1104 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:8447 221 24 1152 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:8443 222 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:8880 223 207 11096 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 224 19 996 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:443 225 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:21 226 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:22 227 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:587 228 4 216 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:25 229 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:465 230 14 840 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:110 231 2 120 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:995 232 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:143 233 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:993 234 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:106 235 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:3306 236 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:5432 237 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:9008 238 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:9080 239 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:137 240 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:138 241 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:139 242 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:445 243 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:1194 244 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:53 245 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:53 246 73 4488 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmp type 8 code 0 247 77 23598 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy DROP 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 0 0 REJECT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp flags:!0x17/0x02 state NEW reject-with tcp-reset 3 0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 state INVALID 4 0 0 ACCEPT all -- lo lo 0.0.0.0/0 0.0.0.0/0 5 0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy DROP 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 31004 25M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 1 333 REJECT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp flags:!0x17/0x02 state NEW reject-with tcp-reset 3 0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 state INVALID 4 434 25606 ACCEPT all -- * lo 0.0.0.0/0 0.0.0.0/0 5 328 21324 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0

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Can't get Postfix Admin to use Dovecot password hashing

- by Paul

I'm setting up Postfix Admin 2.91 and trying to use dovecot:SHA512-CRYPT for password hashing. In config.inc.php I have set: // dovecot:CRYPT-METHOD = use dovecotpw -s 'CRYPT-METHOD'. Example: dovecot:CRAM-MD5 // (WARNING: don't use dovecot:* methods that include the username in the hash - you won't be able to login to PostfixAdmin in this case) $CONF['encrypt'] = 'dovecot:SHA512-CRYPT'; // If you use the dovecot encryption method: where is the dovecotpw binary located? // for dovecot 1.x // $CONF['dovecotpw'] = "/usr/sbin/dovecotpw"; // for dovecot 2.x (dovecot 2.0.0 - 2.0.7 is not supported!) $CONF['dovecotpw'] = "/usr/sbin/doveadm pw"; I have also tried SHA256-CRYPT and MD5-CRYPT with same results (as I understand it, these do not include usernames in the hash) In running setup.php, I get the following message when trying to create an admin account: can't encrypt password with dovecotpw, see error log for details Server error log reports: 1624#0: *6 FastCGI sent in stderr: "PHP message: dovecotpw password encryption failed. PHP message: STDERR output: sh: 1: /usr/sbin/doveadm: not found" while reading response header from upstream <...> upstream: "fastcgi://unix:/var/run/php5-fpm.sock:" <...> A couple quick checks: # ll /usr/sbin/doveadm -rwxr-xr-x 1 root root 423264 Feb 13 23:23 /usr/bin/doveadm* # doveadm pw -l CRYPT MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA SHA256-CRYPT SHA512-CRYPT # doveadmin pw -s SHA512-CRYPT Enter new password: Retype new password: {SHA512-CRYPT}$6$<long string here>/ Using Dovecot 2.2, PHP 5.5, MariaDB 10, Postfix 2.11, nginx 1.6.0, Ubuntu 12.04.

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Mimicking Google's Persistant Disks -- Is this a logical FreeBSD disaster recovery strategy?

- by Casey Jordan

I am looking into FreeBSD to provide a more comprehensive backup and disaster recovery strategy for database servers. Ideally I want to mimic what google is doing with "Persistant disks" https://developers.google.com/compute/docs/disks#snapshots I am hoping someone who knows more about FreeBSD can validate these ideas/questions: I have read that FreeBSD can take instant disk snapshots, therefore if our databases trigger a consistent state (Block all writes, and flush buffers to disk), I would assume I could take snapshots every hour without service interruption for more than a few seconds. Is this true? Is there a way to take snapshots and back them up offsite easily? Can this be done incrementally as to save how much disk space is actually used? If a rollback needed to be done, how long does this typically take? Is a rollback also instantaneous? Thanks!

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Point example.com to webserver in DNS record

- by ggstevens

I have a Mac Mini Server (named Server) with the following DNS setup Primary Zone: example.com mysql-host.example.com machine (10.0.0.101) server.example.com machine (10.0.0.100) server.example.com nameserver (10.0.0.100) www.example.com machine (10.0.0.102) www.example.com is a linux box with Apache. How do I get both example.com and www.example.com to work. Right now, I can view my website with www.example.com only. I know there's nothing that points example.com to the IP, but when I create a machine record without a hostname I get an error (This machine record cannot be created without a host name.).

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simple script to backup PostgreSQL database

- by Mick

Hello I write simple batch script to backup postgeSQL databases, but I find one strange problem whether the pg_dump command can specify a password? There is batch script: REM script to backup PostgresSQL databases @ECHO off FOR /f "tokens=1-4 delims=/ " %%i IN ("%date%") DO ( SET dow=%%i SET month=%%j SET day=%%k SET year=%%l ) SET datestr=%month%_%day%_%year% SET db1=opennms SET db2=postgres SET db3=sr_preproduction REM SET db4=sr_production ECHO datestr is %datestr% SET BACKUP_FILE1=D:\%db1%_%datestr%.sql SET FIlLENAME1=%db1%_%datestr%.sql SET BACKUP_FILE2=D:\%db2%_%datestr%.sql SET FIlLENAME2=%db2%_%datestr%.sql SET BACKUP_FILE3=D:\%db3%_%datestr%.sql SET FIlLENAME3=%db3%_%datestr%.sql SET BACKUP_FILE4=D:\%db14%_%datestr%.sql SET FIlLENAME4=%db4%_%datestr%.sql ECHO Backup file name is %FIlLENAME1% , %FIlLENAME2% , %FIlLENAME3% , %FIlLENAME4% ECHO off pg_dump -U postgres -h localhost -p 5432 %db1% > %BACKUP_FILE1% pg_dump -U postgres -h localhost -p 5432 %db2% > %BACKUP_FILE2% pg_dump -U postgres -h localhost -p 5432 %db3% > %BACKUP_FILE3% REM pg_dump -U postgres -h localhost -p 5432 %db4% > %BACKUP_FILE4% ECHO DONE ! Please give me advice Regards Mick

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AWSTATS - manual update error (permissions)

- by Lewis

Error: Couldn't open file "/var/www/awstats/awstats032014.site.net.tmp.9198" for write: Permission denied Setup ('/etc/awstats/awstats.site.net.conf' file, web server or permissions) may be wrong. Check config file, permissions and AWStats documentation (in 'docs' directory). I get this error when manual trying to update awstats (via the browser link). I have set the folder permissions of /var/www/awstats/ to 775 and still get the error. If I create a new file on that folder the default permission setting set the permissions to 774 which should work.

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WDS - Clients receive Error: PXE-E53: No boot filename received

- by Ninja2k

I have setup WDS on Windows 2008 server in a Vmware box so I can practise setting up WDS,the server has DNS and DHCP as well as AD, the boot image is confirmed as working but when my clients try to boot up it does not work. I have checked the following: Clients can ping the WDS server. The WDS service is started Boot images for X86 and X64 are deployed. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WDSServer\Providers\WDSPXE UseDhcpPorts has been set to 0 My clients just receive Error: PXE-E53: No boot filename received. Any idea what could be wrong?

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Permission forbidden on localhost with apache2

- by N Alex

Here is what I am trying to do. I tried to add another folder to apache and I get the following error when trying to acces testing/index.html. The idea is that I would like to have for every customer a folder like /home/neagoe/Work/InterWebs/Projects/[PROJECT NAME]/CustomerProjects/website/dist. Forbidden You don't have permission to access /index.html on this server. Apache/2.2.22 (Ubuntu) Server at testing Port 80 Here are the steps that I followed: Step1: sudo chmod a+x /home/neagoe/Work/InterWebs/Projects/testing/CustomerProjects/website/dist Step2: sudo chown -R www-data:www-data /home/neagoe/Work/InterWebs/Projects/testing/CustomerProjects/website/dist sudo chmod -R 775 /home/neagoe/Work/InterWebs/Projects/testing/CustomerProjects/website/dist Step3: sudo adduser $USER www-data Step4: sudo a2enmod userdir Step5: sudo cp /etc/apache/sites-available/default /etc/apache/sites-available/testing I edited the file /etc/apache/sites-available/testing so it looks like this: <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName testing DocumentRoot /home/neagoe/Work/InterWebs/Projects/testing/CustomerProjects/website/dist <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /home/neagoe/Work/InterWebs/Projects/testing/CustomerProjects/website/dist/ > Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> Step6: I edited hosts ("/etc/hosts") so it looks like this: 127.0.0.1 localhost 127.0.0.1 testing # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters Step7: sudo a2ensite testing sudo service apache2 restart I searched for about 2 hours on the internet but I can't figure out what went wrong. All the pages that I found following the same steps as described above. I know there are similar questions here on the internet, but the answer is to change permission to the directory which I did on Step2. I am sorry if this is really a duplicate but I could't find the right answer. Thank you! PS. I asked this also on AskUbuntu but didn't get any answers so I'm trying my luck here. Edit: There isn't much on the error log or the access log. On the access.log: ::1 - - [10/Aug/2013:11:23:28 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:29 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:31 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:32 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:33 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:34 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:35 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" 127.0.0.1 - - [10/Aug/2013:11:23:23 +0300] "POST /wordpress-testing/wp-cron.php?doing_wp_cron=1376123003.7026669979095458984375 HTTP/1.0" 200 705 "-" "WordPress/3.6; http://localhost/wordpress-testing" ::1 - - [10/Aug/2013:11:23:36 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:37 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" ::1 - - [10/Aug/2013:11:23:38 +0300] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2.2.22 (Ubuntu) (internal dummy connection)" 127.0.0.1 - - [10/Aug/2013:11:31:32 +0300] "GET /index.html HTTP/1.1" 200 485 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0" And the last line repeats for about 200 rows. On the error.log: 1. This lines repeat from time to time. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525 /msql.so' - /usr/lib/php5/20100525/msql.so: cannot open shared object file: No such file or directory in Unknown on line 0 [Sat Aug 10 13:06:42 2013] [notice] Apache/2.2.22 (Ubuntu) PHP/5.4.9-4ubuntu2.2 configured -- resuming normal operations [Sat Aug 10 13:07:36 2013] [notice] caught SIGTERM, shutting down PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525/msql.so' - /usr/lib/php5/20100525/msql.so: cannot open shared object file: No such file or directory in Unknown on line 0 [Sat Aug 10 13:07:37 2013] [notice] Apache/2.2.22 (Ubuntu) PHP/5.4.9-4ubuntu2.2 configured -- resuming normal operations 2. And this is the predominant error. (hundreds of lines) [Sat Aug 10 13:07:40 2013] [error] [client 127.0.0.1] (13)Permission denied: access to /index.html denied

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Poor write performance on Debian server running NFS with 22TB exported JFS filesystem

- by user143546

I am currently running a debian server that is exporting a large JFS filesystem (22TB) over NFS (nfs-kernel-server.) When attempting to write to the NFS share, the performance is very poor. The 22TB disk is sitting on a NAS mounted using iSCSI. It will bust for a moment near expected line speed, and then sit idle for several seconds. Very little traffic measured in the low kb/sec. The wait peeks on write. When reading from the NFS mount, the system operates at expected speeds (11MB/sec). The issue does not occur when using SFTP, rsync, or local coping (non-nfs). The issue persists between stable and testing releases. On the same machine I have a 14TB ext4 filesystem using the exact same export configuration that does not share the issue. This share is not in regular use and thus not consuming resources. NFS Server: cat /etc/exports /data2 10.1.20.86(rw,no_subtree_check,async,all_squash) cat /sys/block/sdb/queue/scheduler noop [deadline] cfq cat /etc/default/nfs-kernel-server RPCNFSDCOUNT=8 RPCNFSDPRIORITY=0 RPCMOUNTDOPTS=--manage-gids NEED_SVCGSSD= RPCSVCGSSDOPTS= NFS Client: cat /etc/fstab 10.1.20.100:/data2 /root/incoming nfs rw,noatime,soft,intr,noacl 0 2 cat /sys/block/sdb/queue/scheduler noop [deadline] cfq cat /proc/mounts 10.1.20.100:/data2/ /root/incoming nfs4 rw,noatime,vers=4,rsize=262144,wsize=262144,namlen=255,soft,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=10.1.20.86,minorversion=0,addr=10.1.20.100 0 0 This problem has me pretty stumped. Any help would be greatly welcomed. Thanks.

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IIS 7 Web service access

- by Aharon Manne

I am trying to debug a simple web service. I have IIS 7 installed on my development machine (Windows 7), and have installed the web service. I can access it from my development machine, but not from any other machine in the local network.I opened the firewall to HTTP access, and I can access the default website from other machines, so it is not the firewall.What security settings should I look at to try to allow devices on the LAN to access the web service?

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Apache2 VirtualHosts 403 Oddity

- by Carson C.

I'm sure this is something I should already understand, but I'm finding myself confused. The configs in play add up to this: NameVirtualHost *:80 Listen 80 <VirtualHost *:80> <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> </VirtualHost> <VirtualHost *:80> ServerAdmin [email protected] ServerName domain.tld ServerAlias *.domain.tld DocumentRoot /var/www/domain.tld <Directory /var/www/domain.tld> Options -Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> DNS is working correctly. The issue is, every variant of http://*.domain.tld/ (including http://domain.tld/) works correctly, except http://www.domain.tld/ which throws a 403. The logs state: client denied by server configuration: /etc/apache2/htdocs If I remove the first VirtualHost block from play, everything works as expected including http://www.domain.tld. This leads me to believe that for some reason, Apache is not considering www.domain.tld to match the second VirtualHost block, and is thereby falling back to deny all. This seems wrong. Shouldn't the second block match www.domain.tld? I've been able to resolve this, but I still don't understand why. In my original configs, I was using the real ip address of the server instead of *. Switching all instances to * as shown above made everything work as expected. Does this have something to do with the way browsers request resources?

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SQL Server: How to report error from a job's step of PowerShell type

- by Ariel

I have a SQL job whose step of 'PowerShell' type does 'exit 1' if encounters an error i.e. $ErrorActionPreference='stop'; trap{"$_"; exit 1} Problem is, SQL Server doesn't pay attention to that exit code, and reports "The step did not generate any output. Process Exit Code 0. The step succeeded." Any idea how to successfully tell SQL Server from a PowerShell step that something went wrong? Thanks in advance.

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phpbb3 email settings for Zoho SMTP server

- by SkylarMT

I've spent a while guessing and googling, and haven't found an answer. In the past I setup my forums to send via my Gmail account, but spambots with fake emails have flooded my inbox, so I setup [email protected] with Zoho mail. Now I need to have my installation of phpbb3 send mass emails through the smtp.zoho.com mail server, and I can't figure out what settings I should use. The instructions on https://www.zoho.com/mail/help/pop-access.html are a little vague for anything that doesn't auto-detect the exact settings.

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I can't write to a folder which I'm a member of

- by user3265472

I'm trying to setup folder access to a group so that all members of that group can create/edit/delete files within the folder. # create my group and add a member sudo addgroup dev sudo adduser martyn dev Now, logged in as "martyn", check my user has been added to "dev" group groups martyn martyn : martyn dev Now I want to change the group ownership of my project folder so all members of that group can edit it and files/folders within it. sudo chgrp -R dev myproject Just to check: martyn@localhost:/var/www$ ls -l total 4 drwxrwxr-x 3 dev dev 4096 May 31 15:53 myproject Now here's where it fails. I want to create a file within myproject (logged in as "martyn", a member of "dev"): vi myproject/test ..but when I try to save the file I get the following error: "myproject/test" E212: Can't open file for writing Why, as user "martyn" which is a member of "dev", can I not write this file? Even if I create the file so it exists, change the ownership to "dev" then try to edit and save - I get the same error.

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Is there a log showing why a Windows server did not restart SQL Server after a reboot?

- by MerlinMags

Our server was rebooted after a Windows Update scheduled for 1am, but after the restart SQL Server did not start up, so our websites were unable to display. Usually this process happens with no manual intervention. Is there a log somewhere which might indicate the reason why the Windows startup process did not call SQL Server to get going again? I've looked in the Event Viewer (Application Log) and SQL's own file E:\MSSQL\MSSQL10.MSSQLSERVER\MSSQL\Log\ERRORLOG* but these only contain records of successful startup operations....nothing mentions a failed attempt to start a service or anything like that.

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How two completely unrelated software can affect each other in a very strange manner?

- by user40602

I installed an old game on my old PC and it doesn't work; its process/exe file was listed in task manager but nothing appeared on the screen. then some time later i discovered that when some specific program was running an my pc, that game could be executed without that problem! although i am myself a power user and also a programmer, i couldn't find the reason, and don't have any good guesses about it. i just know that when i want to run that game i should have another specific and unrelated program running. i ask if anyone has any idea/guess about the possible reasons for this rare phenomenon! oh and if u ask about the details/names of those programs, i am afraid of telling that, because others may think i am kidding, but i am not (please believe me!), that game is NFS2 and the other program is mysqld.exe (i said before that i am a programmer!). I don't know how mysqld.exe (yes it is the windows version of the famous MySQL DBMS server) can affect NFS2 in such an strange manner, and my curiosity and profession don't let me to forget seeking for the answer, so i decided to take the help of others to see if someone has had a similar experience or a reasonable idea about it.

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How to use Timer broadcast on Multi-Processor system with linux 3.10?

- by kevin.ji

Hardware: ARM Cortex-A9 * 2 Software: linux-3.10.0 The platform has 2 cores of arm cortex-a9. Item CONFIG_LOCAL_TIMERS is not set in linux menuconfig. I want to use only one hardware timer to supply tick for all cpu. Interrupts looks like: CPU0 CPU1 57: 6697 0 GIC timer 81: 213 0 GIC uart-pl011 103: 0 0 GIC gmac0 104: 0 0 GIC gmac1 IPI0: 0 1 CPU wakeup interrupts IPI1: 0 0 Timer broadcast interrupts IPI2: 967 866 Rescheduling interrupts IPI3: 0 0 Function call interrupts IPI4: 1 2 Single function call interrupts IPI5: 0 0 CPU stop interrupts IPI6: 0 0 CPU backtrace Err: 0 Timer broadcast interrupts counter does not add. And it looks like that cpu1 does not work at all.But this method works well with linux-3.4, and the interrupt info looks as below in linux-3.4: # cat /proc/interrupts CPU0 CPU1 57: 8596 0 GIC timer 81: 91 0 GIC uart-pl011 103: 0 0 GIC gmac0 104: 0 0 GIC gmac1 IPI0: 0 8560 Timer broadcast interrupts IPI1: 884 1020 Rescheduling interrupts IPI2: 0 0 Function call interrupts IPI3: 0 6 Single function call interrupts IPI4: 0 0 CPU stop interrupts IPI5: 0 0 CPU backtrace Err: 0 The count of Timer broadcast interrupts is adding. And all of cpus work well. I don't know why. Any answer is welcome. :)

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Virtual Box between differnt PCs

- by Jim

I am using Virtual Box machine (as .vdi) on external HDD drive so I can move it between different pcs. On each PC I have created new VM machine, attached that vdi and it seems working well. However, I've noticed that during my last transfer the latest installed applications were not saved on the .vdi, which made me to loose 1 day of work. I don't remember of doing any snapshots which I could merge. Can someone give me a hint how to handle this efficiently in feature?

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Ubuntu + SSL ports + AVAST

- by jurajvt

I have an interesting problem with communication via standard SSL ports. Fresh installed Ubuntu 14.04 server + Postfix + Dovecot, SASL authentication provided by Dovecot, self-signed certificate generated trough the Dovecot script mkcert.sh. Redirected ports on ZyWALL USG 200. I can send and receive e-mails from outside with standard ports 25 and 110, but not over 587. I am connecting to my server from machine with Windows 8.1 + VMWare Player + Ubuntu 14.04 Desktop + ssh. On Windows host I have installed Avast! antivirus. When I am trying to telnet from virtual machine to server over 587, it refused connection. But when I turn on Avast! it let me in to message Connected to... Same with nmap. When Avast! is turned on it is show me all SSL ports. When I turned it off, only standard ports appeared. OpenSSL shows me CONNECTED(00000003). But outside virtual machine directly in Windows 8.1 using nmap with zenmap there are not opened SSL ports in both Avast! states. From other external linux machines are problems with touching SSL ports same - refused. I have turned on submission in master.cf and 587 port is correctly listening on 0.0.0.0 in process master.pid which belongs to Postfix. I can telnet, or nmap over port 587 to my domain directly from server. Other ports like 995, 993 are OK on localhost, too. It is true, that I can't send emails via 587 anyway (Avast! turned on/off), but I can see ports opened. It is possible, that I have simply bad certificate and Avast! has right one, so with turned it on I can see opened ports? EDIT: To be more clear, I can't see or using port 587 everywhere from outside (tried Thunderbird, telnet, openssl, nmap, putty, swaks; both from Linux or Windows machines) and that is my problem. It was only by chance that I saw opened ports when Avast! is turned on.

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Can't boot Windows 8

- by Viet Norm

When I try to boot Windows 8, it starts automatic repair process which fails to repair it. It logs stuff in c:\windows\system32\Logfiles\Srt\SrtTrail.txt. After one of attempted automatic repairs, last line in that file said that tm.sys and clfs.sys files are corrupt (current version says "Startup Repair has tried several times but still cannot determine the cause of the problem.") Any ideas how to fix this? Thanks in advance.

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Defend Your Servers from the Bad Guys in ‘Install D’

- by Akemi Iwaya

If you love playing tower defense games, then you will definitely want to give today’s offering a try. In ‘Install D’, you must defend your servers from all manner of problems such as glitches, bugs, and viruses that are ready to bring your systems to their knees! Can you succeed, or will the IT department be hanging out the ‘Help Wanted’ sign?Click Here to Continue Reading

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