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  • Trouble with port 80 nating (XenServer to WebServer VM)

    - by Lain92
    I have a rent server running XenServer 6.2 I only have 1 public IP so i did some NAT to redirect ports 22 and 80 to my WebServer VM. I have a problem with the port 80 redirection. When i use this redirection, i can get in the WebServer's Apache but this server lose Web access. I get this kind of error : W: Failed to fetch http://http.debian.net/debian/dists/wheezy/main/source/Sources 404 Not Found [IP: 46.4.205.44 80] but i can ping anywhere. XenserverIP:80 redirected to 10.0.0.2:80 (WebServer). This is the port 80 redirection part of my XenServer iptables : -A PREROUTING -i xenbr1 -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.0.0 .2:80 -A INPUT -i xenbr1 -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT COMMIT What is wrong in my configuration? Is there a problem with XenServer? Thanks for your help ! Edit : Here is my iptables full content : *nat :PREROUTING ACCEPT [51:4060] :POSTROUTING ACCEPT [9:588] :OUTPUT ACCEPT [9:588] -A PREROUTING -p tcp -m tcp --dport 1234 -j DNAT --to-destination 10.0.0.2:22 -A PREROUTING -i xenbr1 -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.0.0 .2:80 -A POSTROUTING -s 10.0.0.0/255.255.255.0 -j MASQUERADE COMMIT *filter :INPUT ACCEPT [5434:4284996] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [5014:6004729] -A INPUT -i xenbr1 -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT COMMIT Update : I have a second server with 10.0.0.3 as IP and it has the same problem that 10.0.0.2 has.

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  • Port(s) not forwarding?

    - by user11189
    I have cable internet service through Charter Communications and feed two desktop computers through a Linksys RP614v3 router. One system is my wife's running WinXP Home Edition and the other is mine, running Vista Home Premium (sp1). I have port forwarding configured in the Linksys so I can access the Vista system remotely using TightVNC. Initially, it worked great and I was able to remotely tend email and access local files while out of town for work. Lately, the cable internet service appears to flicker intermittently and upon return, my Mailwasher program loses ability to access the net and I've been unable to make the remote connection. When I reset the port forwarded for email in the router control panel, Mailwasher functionality returns but as I'm home when that happens, I have no easy way to check remote access until the next time I'm on the road or at work. I'm at my wit's end -- the TightVNC client accesses fine from my wife's system from behind the modem/router setup but I don't know how to maintain whatever gets reset when I fiddle with the control panel and the need to do so at all is new. I accessed it fine for a week off and on while out of town a month ago and now I can't leave home and access it from work an hour later.

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  • Postfix Submission port issue

    - by RevSpot
    I have setup postfix+mailman on my debian server and i have an issue with postfix submission port. My ISP blocks SMTP on port 25 to prevent *spams and i must to use submission port (587). I have uncomment the following line from master.cf (/etc/postfix/) but nothing happens. submission inet n - - - - smtpd This is my mail logs file when i try to invite a user to mailman list Nov 6 00:35:34 myhostname postfix/qmgr[1763]: C90BF1060D: from=<[email protected]>, size=1743, nrcpt=1 (queue active) Nov 6 00:35:34 myhostname postfix/qmgr[1763]: DF54B10608: from=<[email protected]>, size=488, nrcpt=1 (queue active) Nov 6 00:35:34 myhostname postfix/qmgr[1763]: 80F0D10609: from=<[email protected]>, size=483, nrcpt=1 (queue active) Nov 6 00:35:55 myhostname postfix/smtp[2269]: connect to gmail-smtp-in.l.google.com[173.194.70.27]:25: Connection timed out Nov 6 00:35:55 myhostname postfix/smtp[2270]: connect to gmail-smtp-in.l.google.com[173.194.70.27]:25: Connection timed out Nov 6 00:35:55 myhostname postfix/smtp[2271]: connect to gmail-smtp-in.l.google.com[173.194.70.27]:25: Connection timed out Nov 6 00:36:16 myhostname postfix/smtp[2269]: connect to alt1.gmail-smtp-in.l.google.com[74.125.143.26]:25: Connection timed out Nov 6 00:36:16 myhostname postfix/smtp[2270]: connect to alt1.gmail-smtp-in.l.google.com[74.125.143.26]:25: Connection timed out Nov 6 00:36:16 myhostname postfix/smtp[2271]: connect to alt1.gmail-smtp-in.l.google.com[74.125.143.26]:25: Connection timed out Nov 6 00:36:37 myhostname postfix/smtp[2269]: connect to alt2.gmail-smtp-in.l.google.com[74.125.141.26]:25: Connection timed out Nov 6 00:36:37 myhostname postfix/smtp[2270]: connect to alt2.gmail-smtp-in.l.google.com[74.125.141.26]:25: Connection timed out Nov 6 00:36:37 myhostname4 postfix/smtp[2271]: connect to alt2.gmail-smtp-in.l.google.com[74.125.141.26]:25: Connection timed out Nov 6 00:36:58 myhostname postfix/smtp[2269]: connect to alt3.gmail-smtp-in.l.google.com[173.194.64.26]:25: Connection timed out Nov 6 00:36:58 myhostname postfix/smtp[2270]: connect to alt3.gmail-smtp-in.l.google.com[173.194.64.26]:25: Connection timed out Nov 6 00:36:58 myhostname postfix/smtp[2271]: connect to alt3.gmail-smtp-in.l.google.com[173.194.64.26]:25: Connection timed out Nov 6 00:37:19 myhostname postfix/smtp[2269]: connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out Nov 6 00:37:19 myhostname postfix/smtp[2270]: connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out Nov 6 00:37:19 myhostname postfix/smtp[2269]: C90BF1060D: to=<[email protected]>, relay=none, delay=23711, delays=23606/0.03/105/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out) Nov 6 00:37:19 myhostname postfix/smtp[2271]: connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out Nov 6 00:37:19 myhostname postfix/smtp[2270]: DF54B10608: to=<[email protected]>, relay=none, delay=23882, delays=23777/0.03/105/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out) Nov 6 00:37:19 myhostname postfix/smtp[2271]: 80F0D10609: to=<[email protected]>, relay=none, delay=23875, delays=23770/0.04/105/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.142.26]:25: Connection timed out) main.cf smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no append_dot_mydomain = no readme_directory = no smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache myhostname = mail.mydomain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = mail.mydomain.com, localhost.mydomain.com,localhost relayhost = relay_domains = $mydestination, mail.mydomain.com relay_recipient_maps = hash:/var/lib/mailman/data/virtual-mailman transport_maps = hash:/etc/postfix/transport mailman_destination_recipient_limit = 1 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all local_recipient_maps = master.cf smtp inet n - - - - smtpd submission inet n - - - - smtpd # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - - 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - - - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache # # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user}

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  • How to find an available port?

    - by Roman
    I want to start a server which listen to a port. I can specify port explicitly and it works. But I would like to find a port in an automatic way. In this respect I have two questions. In which range of port numbers should I search for? (I used ports 12345, 12346, and 12347 and it was fine). How can I find out if a given port is not occupied by another software?

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  • Workaround for PHP SOAP request failure when wsdl defines service port binding as https and port 80?

    - by scooterhanson
    I am consuming a SOAP web service using php5's soap extension. The service' wsdl was generated using Axis java2wsdl, and whatever options are used during generation result in the port binding url being listed as https://xxx.xxx.xxx.xxx**:80** If I download the wsdl to my server, remove the port 80 specification from the port binding location value, and reference the local file in my soapclient call it works fine. However, if I try to reference it remotely (or download it and reference it locally, as-is) the call fails with a soap fault. I have no input into the service side so I can't make them change their wsdl-generation process. So, unless there's a way to make the soapclient ignorant of the port, I'm stuck with using a locally modified copy of someone else' wsdl (which I'd rather not do). Any thoughts on how to make my soapclient ignore the port 80?

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  • URL losing port number in every page load

    - by MarceloRamires
    I'm currently taking care of a certain local website. The default port has been changed, and can no longer be not included in the URL due to technical reasons, so now i'm using a certain port in the end of the IP at the URL, for example 100.100.100.100/website.asp no longer works 100.100.100.100:10/website.asp with the port, works. Works, though I can't click in any link or anything and the port vanishes (new page doesn't load). Then I keep the same URL and just include the port at the end of the IP and it works again, until I click in another link inside of it. I have access to changing each link, but I guess that would not be the right approach. How should I procceed ?

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  • centos iptables, restrict tcp port to specific ips

    - by user788171
    I would like to modify the iptables on my CentOS 5.8 server so that only specific ips can connect to the machine on a specific port. Currently, I have the following in my iptables file: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5000 -j ACCEPT How would I modify that line if I wanted to allow access for only ips 1.1.1.1 and 1.1.1.2 for instance? (they might not necessarily be sequential ips when I do this for reals).

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  • Port forwarding using ASDM 6.0

    - by Jason
    Hey guys, I'm not too savvy with ASDM and it has been quite some time since I have done anything IOS so forgive me. I am trying to forward port 3389 from 'any' on 'outside' (1.1.1.1) to an internal server (10.10.10.10). Can anybody give me the steps to do this using ASDM or IOS. Thanks, -Jason

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  • Setup a vpn server with a static IP with NAT and port forwarding

    - by Lorenzo Pistone
    I have a Debian VPS with an assigned static IP. I want to setup a virtual interface (with an ip like 192.168..) on my laptop (Ubuntu, dynamic IP) linked to the remote VPS, so that if I bind sockets to it the traffic is tunneled to the VPS and sent to the Internet from there. Port forwarding must be available. This looks like a job for a VPN software, but I'm clueless about the pieces of software needed. Any advice?

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  • DNS Records: Forwarding a port on my public domain

    - by marienbad
    I've set up an MX record for a local mailserver before, but I've never done this... I want to set up my public domain (registered by Dreamhost) to accept IPP (Internet Printing Protocol) jobs and send them to the IPP LaserJet printer on my home LAN. IPP uses port 631. What do I put in my DNS records?

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  • Port forwarding with Windows Server 2008

    - by uttt
    I have Windows 2008 server. It works as a mail, ftp, web server. In my LAN there is other server and i want to reach this server with RDC from outside my lan, (example: domail.com:5555 - 192.168.0.2:3389). Is there any solution to forward this port using Windows Firewall?

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  • Port forwarding not working properly

    - by sudo work
    I'm trying to host a small web server from my home network; however, I have not been able to successfully port forward ports to the local server. My current network topology looks like this: Cable Modem/Router - Secondary Wireless Router - Many computers (including server) The modem/router I'm using is a Cisco (Scientific Atlantic) DPC2100, provided by my ISP. The wireless router that I'm using as the central hub to my home network is a Linksys E3000. The computer being used as a server is running Ubuntu 10.04 Server Edition. The main issue is that I can't access the server remotely, using my WAN IP address. I have port forwarded my wireless router; however, I believe that I need to somehow set my modem to bridge mode. As far as I can tell though, this isn't possible. Here are the various IP address settings: DPC2100 WAN: 69.xxx.xxx.xxx Internal IP: 192.168.100.1 Internal Network: 192.168.7.0 E3000 IP Address: 192.168.7.2 Gateway: 192.168.7.1 Internal IP: 192.168.1.1 Internal Network: 192.168.1.0 Server IP Address: 192.168.1.123 Gateway: 192.168.1.1 Now I can do an nmap at various nodes, and here are the results (from the server): nmap localhost: 22,25,53,80,110,139,143,445,631,993,995,3306,5432,8080 open nmap 192.168.7.2: 22,25,80 (filtered),110,139,445 open (ports I have forwarded in the E3000)* nmap 69.xxx.xxx.xxx: 1720 open *For some reason, I can SSH into the server at 192.168.7.2, but not view the website. Here are also some other settings: /etc/hosts/ 127.0.0.1 localhost 127.0.1.1 servername ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters /etc/apache2/sites-available/default snippet <VirtualHost *:80> DocumentRoot /srv/www/ <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> ... </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> ... </Directory> ErrorLog /var/log/apache2/error.log LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> ... </Directory> </VirtualHost> Let me know if you need any other information; some stuff probably slipped my mind.

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  • Port-forwarding HTTPS web server

    - by James Moore
    I have port forwarded our front-facing IP to an internal HTTPS server. The browser does not connect. A wget command determines that the certificate is self-signed for the internal IP. Hence why the browser is refusing to display the page properly. What is the best-practice scenario for this sort of stuff? Thanks

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  • SSH port forwarding. Connection refused [closed]

    - by Kein
    I want to make a port forward from my public server to my home pc, to connect through ssh. What have I done wrong? From home pc I run command: ssh -R 8022:127.0.0.1:22 remote.host Now when I try to connect with: ssh remote.host -p 8022 I get error "Connection refused" But when I connect to remote.host through ssh, and try to run: ssh localhost -p 8022 It connects to my home PC. How I can connect to home with one simple command? ssh remote.host -p 8022

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  • Port forwarding with Windows Server 2008 [closed]

    - by uttt
    I have Windows 2008 server. It works as a mail, ftp, web server. In my LAN there is other server and i want to reach this server with RDC from outside my lan, (example: domail.com:5555 - 192.168.0.2:3389). Is there any solution to forward this port using Windows Firewall?

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  • Browser http port-forwarding

    - by Kakao
    When using a browser like Firefox I need that any url of the domain example.com to have appended the port :8008. Not only when I type it at address bar but any where it is referenced within the served html page. All the other domains should be left as is. I know I can setup a proxy like Squid or use a pac file in a web site but I want it simpler if possible.

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  • unable to connect site to different port

    - by JohnMerlino
    I have a domain was registered at godaddy named http://mysite.com/. I logged into godaddy and I went to All Products Domains Domain Management. I clicked on the appropriate domain and it took me to the Domain Details page. I clicked Launch under DNS Manager and it took me to the Zone File Editor. I noticed that notify.mysite.com was pointing to an IP address pointing to a dead server, so I switched it to an operating server. Then I pinged the domain to see where it was pointing to and it was correctly pointing to the working server. So I copied the default configuration under sites-available: sudo cp default notify.mysite.com. And then I made some edits to it to have it point to a different document root to serve files at a different port: Listen 1740 Listen 64.135.xx.xxx:1740 #I also tried this as well: NameVirtualHost 64.135.xx.xxx:1740 <VirtualHost 64.135.xx.xxx:1740> ServerAdmin [email protected] ServerName notify.mysite.com DocumentRoot /var/www/test/public <Directory /var/www/test/public> Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> Then I enabled the virtual host. Then I went to the document root and added an index.html file with some text in it. Then I restarted apache. The restart gave no errors. Then I type the correct domain in URL: http://notify.mysite.com:1740/ and I get: Oops! Google Chrome could not connect to notify.mysite.com:1740 Somehow it took out all my other sites. Now even the ones that were responding on port 80 are no longe responding, even though I did not touch the virtual hosts for them. I get this message now: Oops! Google Chrome could not connect to mysite.com However, ping responds: ping mysite.com PING mysite.com (64.135.12.134): 56 data bytes 64 bytes from 64.135.12.134: icmp_seq=0 ttl=49 time=20.839 ms 64 bytes from 64.135.12.134: icmp_seq=1 ttl=49 time=20.489 ms The result of telnet: $ telnet guarddoggps.com 80 Trying 64.135.12.134... telnet: connect to address 64.135.12.134: Connection refused telnet: Unable to connect to remote host

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  • Question on MacPorts comment: "manually remove the catalog entry for this port when you uninstall it

    I was recently installing Inkscape with MacPorts through a Mac OSX Leopard Terminal using "sudo port install inkscape" And during the search-and-download for dependencies, many of these type of comments were printed: ###################################################################### # As MacPorts does not currently have a post-deactivate hook, # you will need to ensure that you manually remove the catalog # entry for this port when you uninstall it. To do so, run # "xmlcatmgr remove nextCatalog /opt/local/share/xsl/docbook-xsl/catalog.xml". ###################################################################### Can anyone tell me what this message means? I do not understand what "it" refers to in the phrase 'ensure that you manually remove the catalog entry for this port when you uninstall it'. Does 'it' refer to a 'this port'? How is a port uninstalled? Mostly: When will I have to manually remove the catalog entry using the provided command? Also, what is a catalog entry? is that what appears when I type "sudo port search inkscape" ? I am kind of a MacPorts install n00b. Thanks very much for your time.

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  • Serial port : Read data problem, not reading complete data

    - by Anuj Mehta
    Hi I have an application where I am sending data via serial port from PC1 (Java App) and reading that data in PC2 (C++ App). The problem that I am facing is that my PC2 (C++ App) is not able to read complete data sent by PC1 i.e. from my PC1 I am sending 190 bytes but PC2 is able to read close to 140 bytes though I am trying to read in a loop. Below is code snippet of my C++ App Open the connection to serial port serialfd = open( serialPortName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY); if (serialfd == -1) { /* * Could not open the port. */ TRACE << "Unable to open port: " << serialPortName << endl; } else { TRACE << "Connected to serial port: " << serialPortName << endl; fcntl(serialfd, F_SETFL, 0); } Configure the Serial Port parameters struct termios options; /* * Get the current options for the port... */ tcgetattr(serialfd, &options); /* * Set the baud rates to 9600... */ cfsetispeed(&options, B38400); cfsetospeed(&options, B38400); /* * 8N1 * Data bits - 8 * Parity - None * Stop bits - 1 */ options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; /* * Enable hardware flow control */ options.c_cflag |= CRTSCTS; /* * Enable the receiver and set local mode... */ options.c_cflag |= (CLOCAL | CREAD); // Flush the earlier data tcflush(serialfd, TCIFLUSH); /* * Set the new options for the port... */ tcsetattr(serialfd, TCSANOW, &options); Now I am reading data const int MAXDATASIZE = 512; std::vector<char> m_vRequestBuf; char buffer[MAXDATASIZE]; int totalBytes = 0; fcntl(serialfd, F_SETFL, FNDELAY); while(1) { bytesRead = read(serialfd, &buffer, MAXDATASIZE); if(bytesRead == -1) { //Sleep for some time and read again usleep(900000); } else { totalBytes += bytesRead; //Add data read to vector for(int i =0; i < bytesRead; i++) { m_vRequestBuf.push_back(buffer[i]); } int newBytesRead = 0; //Now keep trying to read more data while(newBytesRead != -1) { //clear contents of buffer memset((void*)&buffer, 0, sizeof(char) * MAXDATASIZE); newBytesRead = read(serialfd, &buffer, MAXDATASIZE); totalBytes += newBytesRead; for(int j = 0; j < newBytesRead; j++) { m_vRequestBuf.push_back(buffer[j]); } }//inner while break; } //while

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