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Networking & Security

Having problems getting connected to the internet or running a server? Wondering about securing your box? Ask here.
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  • Announcements
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  • Gentoo Linux Security Team
    Last post by desultory « Thu Mar 20, 2014 3:55 am
    Replies: 3
    by Koon » Tue Nov 16, 2004 12:52 pm
    3 Replies
    235900 Views
    Last post by desultory
    Thu Mar 20, 2014 3:55 am
  • Topics
    Replies
    Views
    Last post
  • /etc/postfix/pgsql/ files discrepancy [SOLVED]
    Last post by jankom « Tue Mar 31, 2026 3:45 pm
    Replies: 42
    by jankom » Tue Mar 17, 2026 10:48 pm
    • 1
    • 2
    42 Replies
    5896 Views
    Last post by jankom
    Tue Mar 31, 2026 3:45 pm
  • Autologin with pam_pkcs if card is present?
    Last post by shimbob « Tue Mar 31, 2026 3:04 am
    by shimbob » Tue Mar 31, 2026 3:04 am
    0 Replies
    201 Views
    Last post by shimbob
    Tue Mar 31, 2026 3:04 am
  • Getting WIFI off the ground
    Last post by jetrca « Fri Mar 27, 2026 10:15 pm
    Replies: 3
    by jetrca » Fri Mar 27, 2026 12:29 pm
    3 Replies
    572 Views
    Last post by jetrca
    Fri Mar 27, 2026 10:15 pm
  • dovecot 2.4.2 connecting to Database [CLOSED]
    Last post by jankom « Fri Mar 27, 2026 11:41 am
    Replies: 1
    by jankom » Sat Mar 21, 2026 10:48 pm
    1 Replies
    1990 Views
    Last post by jankom
    Fri Mar 27, 2026 11:41 am
  • Kernel 6.18.18 broke virt-manager
    Last post by pietinger « Fri Mar 27, 2026 11:07 am
    Replies: 1
    by sdz » Fri Mar 27, 2026 2:18 am
    1 Replies
    453 Views
    Last post by pietinger
    Fri Mar 27, 2026 11:07 am
  • davfs2 1.7.2 required for kernel geq 6.16 but not available
    Last post by jetrca « Thu Mar 26, 2026 7:09 pm
    Replies: 3
    by jetrca » Mon Mar 02, 2026 10:36 am
    3 Replies
    7582 Views
    Last post by jetrca
    Thu Mar 26, 2026 7:09 pm
  • PQC and Future Secure Logins
    Last post by alienjon « Thu Mar 26, 2026 2:41 am
    Replies: 2
    by alienjon » Thu Mar 26, 2026 12:16 am
    2 Replies
    641 Views
    Last post by alienjon
    Thu Mar 26, 2026 2:41 am
  • Struggling to setup wireguard with netifrc.
    Last post by Borsch « Wed Mar 25, 2026 12:06 pm
    Replies: 5
    by Borsch » Mon Mar 23, 2026 3:47 pm
    5 Replies
    1067 Views
    Last post by Borsch
    Wed Mar 25, 2026 12:06 pm
  • Advice for migrating from IPTABLES to NFTABLES
    Last post by rab0171610 « Tue Mar 24, 2026 12:03 pm
    Replies: 15
    by rab0171610 » Mon Mar 23, 2026 4:32 am
    15 Replies
    2246 Views
    Last post by rab0171610
    Tue Mar 24, 2026 12:03 pm
  • dovecot 2.4 from 2.3 problems - CLOSED
    Last post by jankom « Mon Mar 23, 2026 9:29 pm
    Replies: 133
    by jankom » Sat Jan 31, 2026 2:46 pm
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    133 Replies
    243835 Views
    Last post by jankom
    Mon Mar 23, 2026 9:29 pm
  • When "Predictable" Network Interface Names Aren't
    Last post by mwoodiupui « Fri Mar 20, 2026 2:48 pm
    Replies: 33
    by John R. Graham » Tue Jun 03, 2025 4:35 pm
    • 1
    • 2
    33 Replies
    32615 Views
    Last post by mwoodiupui
    Fri Mar 20, 2026 2:48 pm
  • [SOLVED] windows laptop fails to acknowledge DHCPOFFER
    Last post by o5gmmob8 « Wed Mar 18, 2026 5:11 pm
    Replies: 7
    by o5gmmob8 » Mon Feb 23, 2026 5:04 pm
    7 Replies
    11419 Views
    Last post by o5gmmob8
    Wed Mar 18, 2026 5:11 pm
  • failing nic symptoms
    Last post by o5gmmob8 « Wed Mar 18, 2026 1:32 pm
    Replies: 16
    by o5gmmob8 » Wed Dec 17, 2025 9:28 am
    16 Replies
    16548 Views
    Last post by o5gmmob8
    Wed Mar 18, 2026 1:32 pm
  • OpenVPN with a br0 and tun0 interface assistance needed
    Last post by mondjef « Wed Mar 18, 2026 11:13 am
    Replies: 13
    by mondjef » Sun Mar 08, 2026 6:42 pm
    13 Replies
    20722 Views
    Last post by mondjef
    Wed Mar 18, 2026 11:13 am
  • funny firewall behavior
    Last post by freke « Tue Mar 17, 2026 4:27 pm
    Replies: 8
    by leyvi » Fri Mar 13, 2026 7:48 am
    8 Replies
    7200 Views
    Last post by freke
    Tue Mar 17, 2026 4:27 pm
  • Dovecot 2.4 and getmail [SOLVED]
    Last post by pa4wdh « Sat Mar 14, 2026 12:29 pm
    Replies: 4
    by pa4wdh » Fri Mar 13, 2026 7:08 pm
    4 Replies
    7475 Views
    Last post by pa4wdh
    Sat Mar 14, 2026 12:29 pm
  • [seems SOLVED] NFS v4 on tmpfs gives 'stale file handle'
    Last post by widlokm « Tue Mar 10, 2026 3:01 pm
    Replies: 19
    by widlokm » Wed Feb 25, 2026 2:44 pm
    19 Replies
    46239 Views
    Last post by widlokm
    Tue Mar 10, 2026 3:01 pm
  • kernel hw cypto in openssl / others
    Last post by jlm « Sun Mar 08, 2026 9:44 am
    Replies: 4
    by jlm » Sat Feb 28, 2026 6:34 pm
    4 Replies
    9038 Views
    Last post by jlm
    Sun Mar 08, 2026 9:44 am
  • Everything wants access to the "default keyring"
    Last post by Banana « Sun Mar 08, 2026 9:05 am
    Replies: 3
    by ExecutorElassus » Sat Mar 07, 2026 10:36 am
    3 Replies
    7777 Views
    Last post by Banana
    Sun Mar 08, 2026 9:05 am
  • [SOLVED] IPTABLES rules failed
    Last post by smokyrun « Sat Mar 07, 2026 6:00 pm
    Replies: 5
    by smokyrun » Wed Mar 04, 2026 4:55 am
    5 Replies
    11989 Views
    Last post by smokyrun
    Sat Mar 07, 2026 6:00 pm
  • WiFi not working after fresh install.
    Last post by Borsch « Thu Mar 05, 2026 6:40 pm
    Replies: 21
    by Borsch » Tue Mar 03, 2026 1:06 pm
    21 Replies
    28403 Views
    Last post by Borsch
    Thu Mar 05, 2026 6:40 pm
  • distcc with slightly different gcc versions
    Last post by eccerr0r « Tue Mar 03, 2026 4:46 pm
    Replies: 1
    by Nomistic » Tue Mar 03, 2026 9:53 am
    1 Replies
    6578 Views
    Last post by eccerr0r
    Tue Mar 03, 2026 4:46 pm
  • netifrc: how do I retry dhcp negotiation
    Last post by pietinger « Tue Mar 03, 2026 12:53 am
    Replies: 1
    by szatox » Mon Mar 02, 2026 11:07 pm
    1 Replies
    6536 Views
    Last post by pietinger
    Tue Mar 03, 2026 12:53 am
  • Invalid/denied users are immediately rejected by sshd server
    Last post by NeddySeagoon « Fri Feb 27, 2026 6:40 pm
    Replies: 1
    by fafner2000 » Fri Feb 27, 2026 6:21 pm
    1 Replies
    6229 Views
    Last post by NeddySeagoon
    Fri Feb 27, 2026 6:40 pm
  • rsync does not preserve permissions [SOLVED]
    Last post by halcon « Fri Feb 27, 2026 4:35 pm
    Replies: 14
    by halcon » Fri Feb 27, 2026 2:22 pm
    14 Replies
    8857 Views
    Last post by halcon
    Fri Feb 27, 2026 4:35 pm
  • [SOLVED]systemd-networkd - local hostnames are not resolving
    Last post by flexibeast « Thu Feb 26, 2026 5:24 am
    Replies: 12
    by o5gmmob8 » Fri Jan 23, 2026 2:06 pm
    12 Replies
    17645 Views
    Last post by flexibeast
    Thu Feb 26, 2026 5:24 am
  • systemd and nfs
    Last post by madmin « Wed Feb 25, 2026 11:29 am
    Replies: 2
    by nitro322 » Mon Jan 05, 2026 4:27 am
    2 Replies
    12310 Views
    Last post by madmin
    Wed Feb 25, 2026 11:29 am
  • why is rsync not working? [solved]
    Last post by Majed17 « Mon Feb 23, 2026 9:04 am
    Replies: 3
    by Majed17 » Thu Jun 27, 2024 7:51 am
    3 Replies
    19654 Views
    Last post by Majed17
    Mon Feb 23, 2026 9:04 am
  • KEA DHCP server crash [SOLVED]
    Last post by grknight « Sun Feb 22, 2026 3:42 pm
    Replies: 3
    by vangogvincent » Sun Feb 22, 2026 2:47 pm
    3 Replies
    7562 Views
    Last post by grknight
    Sun Feb 22, 2026 3:42 pm
  • chrony doesn't re-enable any ntp-servers
    Last post by Zucca « Fri Feb 20, 2026 8:11 pm
    by Zucca » Fri Feb 20, 2026 8:11 pm
    0 Replies
    24274 Views
    Last post by Zucca
    Fri Feb 20, 2026 8:11 pm
  • OpenVPN net-vpn/ovpn-dco vs >=gentoo-sources-6.16
    Last post by Havin_it « Wed Feb 18, 2026 4:10 pm
    by Havin_it » Wed Feb 18, 2026 4:10 pm
    0 Replies
    22974 Views
    Last post by Havin_it
    Wed Feb 18, 2026 4:10 pm
  • iproute2 / rt_tables missing - does not exist [Resolved]
    Last post by lostinspace2011 « Fri Feb 13, 2026 1:31 am
    Replies: 5
    by lostinspace2011 » Fri Feb 13, 2026 12:37 am
    5 Replies
    9031 Views
    Last post by lostinspace2011
    Fri Feb 13, 2026 1:31 am
  • Browser accessed remotely - Seeking advice on next steps
    Last post by zrlt « Thu Feb 12, 2026 4:48 pm
    Replies: 5
    by zrlt » Tue Feb 03, 2026 3:09 pm
    5 Replies
    12883 Views
    Last post by zrlt
    Thu Feb 12, 2026 4:48 pm
  • IPTABLES and PING with Wireguard [RESOLVED]
    Last post by Hu « Thu Feb 12, 2026 3:19 pm
    Replies: 5
    by lostinspace2011 » Wed Feb 11, 2026 11:01 am
    5 Replies
    9559 Views
    Last post by Hu
    Thu Feb 12, 2026 3:19 pm
  • IPTables and Wireguard [Resolved]
    Last post by pietinger « Wed Feb 11, 2026 10:23 pm
    Replies: 3
    by lostinspace2011 » Wed Feb 11, 2026 11:03 am
    3 Replies
    8214 Views
    Last post by pietinger
    Wed Feb 11, 2026 10:23 pm
  • No wifi signal after install
    Last post by NeddySeagoon « Fri Feb 06, 2026 9:26 pm
    Replies: 6
    by Galvatron » Thu Feb 05, 2026 10:29 pm
    6 Replies
    11063 Views
    Last post by NeddySeagoon
    Fri Feb 06, 2026 9:26 pm
  • Postfix smtp (saslauth/rimap) login failures [SOLVED]
    Last post by szatox « Wed Feb 04, 2026 11:25 pm
    Replies: 1
    by ocbMaurice » Wed Feb 04, 2026 10:39 pm
    1 Replies
    8070 Views
    Last post by szatox
    Wed Feb 04, 2026 11:25 pm
  • SELinux Stuck In Enforce Mode
    Last post by nicop « Tue Feb 03, 2026 8:37 am
    Replies: 7
    by juliedeville » Sun Feb 01, 2026 7:14 pm
    7 Replies
    13684 Views
    Last post by nicop
    Tue Feb 03, 2026 8:37 am
  • Fully self-hosting my email
    Last post by user « Mon Feb 02, 2026 2:38 pm
    Replies: 27
    by Havin_it » Fri Jan 23, 2026 2:24 pm
    • 1
    • 2
    27 Replies
    41677 Views
    Last post by user
    Mon Feb 02, 2026 2:38 pm
  • net-vpn/i2pd-2.58.0 Failing to Start
    Last post by ecstatic « Sat Jan 31, 2026 11:16 pm
    by ecstatic » Sat Jan 31, 2026 11:16 pm
    0 Replies
    25715 Views
    Last post by ecstatic
    Sat Jan 31, 2026 11:16 pm
  • Wireless Interface
    Last post by Gluhwurmchen « Wed Jan 28, 2026 12:22 pm
    Replies: 7
    by Gluhwurmchen » Tue Jan 27, 2026 1:45 pm
    7 Replies
    9650 Views
    Last post by Gluhwurmchen
    Wed Jan 28, 2026 12:22 pm
  • TP-Link TL-WN722N driver [SOLVED]
    Last post by apiaio « Sun Jan 25, 2026 4:59 pm
    Replies: 4
    by apiaio » Sun Jan 25, 2026 2:58 pm
    4 Replies
    11105 Views
    Last post by apiaio
    Sun Jan 25, 2026 4:59 pm
  • [SOLVED] IWD device named wlan0 is not a Wifi device
    Last post by Shwen_Y « Sun Jan 25, 2026 9:34 am
    Replies: 5
    by Shwen_Y » Sun Dec 21, 2025 2:27 am
    5 Replies
    14147 Views
    Last post by Shwen_Y
    Sun Jan 25, 2026 9:34 am
  • [S] cURL DNS lookups really slow with some sites + resolvers
    Last post by Havin_it « Thu Jan 22, 2026 7:28 pm
    Replies: 18
    by Havin_it » Wed Jan 21, 2026 2:39 pm
    18 Replies
    26869 Views
    Last post by Havin_it
    Thu Jan 22, 2026 7:28 pm
  • luakit does not start up
    Last post by andi456 « Thu Jan 22, 2026 3:50 pm
    by andi456 » Thu Jan 22, 2026 3:50 pm
    0 Replies
    22547 Views
    Last post by andi456
    Thu Jan 22, 2026 3:50 pm
  • [SOLVED] semodule -i base.pp works for strict, but not targe
    Last post by z4 « Wed Jan 21, 2026 1:06 am
    Replies: 2
    by z4 » Tue Jan 20, 2026 8:16 am
    2 Replies
    11409 Views
    Last post by z4
    Wed Jan 21, 2026 1:06 am
  • how does this pc finds the nas?
    Last post by Spanik « Mon Jan 19, 2026 7:56 pm
    Replies: 8
    by Spanik » Sun Jan 18, 2026 1:10 pm
    8 Replies
    11054 Views
    Last post by Spanik
    Mon Jan 19, 2026 7:56 pm
  • [Solved] dovecot login problem after 2.4 update
    Last post by Akaihiryuu « Sun Jan 18, 2026 11:15 pm
    Replies: 21
    by pogwizd » Fri Nov 21, 2025 7:46 am
    21 Replies
    27663 Views
    Last post by Akaihiryuu
    Sun Jan 18, 2026 11:15 pm
  • [SOLVED] What added the Group 'cuse' to my system?
    Last post by sam_ « Sun Jan 18, 2026 9:56 pm
    Replies: 5
    by Kellerkalt » Sun Jan 18, 2026 5:39 pm
    5 Replies
    10099 Views
    Last post by sam_
    Sun Jan 18, 2026 9:56 pm
  • Request DNS from pfSense router running VPN with netifrc?
    Last post by Banana « Thu Jan 15, 2026 9:09 am
    Replies: 3
    by eborg.tron » Wed Jan 14, 2026 2:09 am
    3 Replies
    13579 Views
    Last post by Banana
    Thu Jan 15, 2026 9:09 am
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